Print Reading for Industry Review Activity 5-1
Displays, ofttimes called monitors or screens, are the
near-used output device on a computer.They provide instant feedback by showing you text and graphic images as you work or play.
Most desktop displays use Liquid Crystal Display (LCD) or Cathode Ray Tube (CRT) technology, while near all portable computing devices, such as laptops, incorporate LCDs. Because of their slimmer design and lower energy consumption, LCD monitors (too chosen flat panel or apartment screen displays) are replacing CRTs.
Basic features
Resolution refers to the number of dots of colour, known as pixels (picture elements), contained in a display. It is expressed by identifying the number of pixels on the horizontal and vertical axes. A typical resolution is 1024x768.
A pixel is a combination of cerise, green and blue subpixels
Two measurements draw the size of your display: the aspect ratio and the screen size. Historically, computer displays, like most televisions, take had an aspect ratio of 4:3 - the width of the screen to the height is four to three. For widescreen LCD displays, the aspect ratio is 16:9, very useful for viewing DVD movies, playing games and displaying multiple windows adjacent. High- definition Idiot box besides uses this format.The viewable screen size is measured diagonally, so a xix"screen measures 19" from the tiptop left to the bottom right.
Inside the computer there is a video adapter, or graphics card, which processes images and sends signals to the monitor. CRT monitors use a VGA (video graphics adapter) cable, which converts digital signals into analogue signals. LCD monitors use a DVI (digital video interface) connection.
Color depth refers to the number of colours a monitor can brandish. This depends on the number of bits used to draw the colour of a single pixel. For example, an old VGA monitor with an viii-bit depth tin generate 256 colours and a SuperVGA with a 24-bit depth tin can generate 16.7 meg colours. Monitors with a 32-bit depth are used in digital video, animation and video games to go certain furnishings.
Brandish technologies
An LCD is fabricated of ii drinking glass plates with a liquid crystal material betwixt them. The crystals cake the calorie-free in different quantities to create the image. Active-matrix LCDs use TFT (thin film transistor) engineering, in which each pixel has its own switch. The amount of calorie-free the LCD monitor produces is called brightness or luminance, measured in cd/m2 (candela per square metre).
A CRT monitor is similar to a traditional TV gear up. It contains millions of tiny red, green and blue phosphor dots that glow when struck by an electron beam that travels across the screen and create a visible image.
PCs can be connected to video projectors, which project the epitome onto a large screen. They are used for presentations and home theatre applications.
In a plasma screen, images are created by a plasma discharge which contains noble (non-harmful) gases. Plasma TVs allow for larger screens and broad viewing angles, making them ideal for movies.
Organic Light-Emitting Diodes (OLEDs) are thin-film LED displays that don't crave a backlight to part. The textile emits light when stimulated by an electrical current, which is known as electroluminescence.They consume less free energy, produce brighter colours and are flexible - i.e. they can exist aptitude and rolled upwards when they're non beingness used.
Choosing the right display device
aE Mind to five customers in a computer shop describing their display device needs. Which device (a-due east) would you recommend to each person? In pairs, talk over your choices and give reasons for them.
Speaker 1________________________ Speaker 4____________________________
Speaker 2________________________ Speaker 5____________________________
Speaker 3________________________
Widescreen 24" flat panel Resolution: 1920x1200 Color back up: 16.seven one thousand thousand Multiple video inputs, flash- card slots and USB ports
NEC MultiSyn LCD Monitor Screen size: 17"
Resolution: 1280x1024 (SXGA) Aspect ratio: 5:4 Brightness: 400 cd/m2
Dell UltraSharp LCD monitor
Cambridge- Hitachi interactive whiteboard Allows interaction with a projected estimator image Lath size: 78" Connected to the PC via USB Pointing device: cordless pen
Pioneer 50" Plasma TV Resolution: 1280x768 (XGA) Blu-ray Disc recorder 5.ane surround audio organisation (Five audio channels plus 1 subwoofer)
Portable projector
DLP (Digital Light Processing) technology
Resolution: 1024x768
Projection screen
В Irll In pairs, talk over which of the display devices you would most like to own. Give reasons for your choice.
Display screens and ergonomics
iv Ergonomics
A BLi Listen to Tony Clark, an skillful in figurer ergonomics, talking to some
role workers about health and safety. What health problems associated with
computer apply do the office workers mention?
В Ipij Heed again and complete these extracts.
1 Get a expert chair, 1 that.......................................... your lower back and is
2 Make sure your feet rest firmly........................................ or on a footrest.
3 Position the keyboard .............................................. your elbows, with your arms
___ __ ......i............................... the work surface ...
4 ... position the monitor at, or just beneath,..........................................
5 Yous should sit at________________________ from the front of the monitor, near 50 to lxx
centimetres away.
half dozen ... a kind of stand that lets you movement the monitor ....................................... , so you can utilise it
at the correct bending and height.
С Match the extracts above (i-6) with the right parts of the diagram (a-f).
Ergonomics - the study of how people collaborate safely and efficiently with machines and their work weather condition
Linguistic communication work: instructions and advice
Look at the HELP box and and then complete these wellness and safe guidelines withshould/shouldn't.
1 If you type a lot at your estimator each
day, you........................... buy an ergonomic
keyboard; it can assist reduce the chance of repetitive strain injury.
ii You..................... place your mouse
within easy achieve and support your forearm.
iii If you decide to build your own PC, protect yourself from electric shocks. Y'all
____________ touch whatever components
unnecessarily.
4 You____________ ever employ a
copyholder if you are working from
• We apply the imperative to give instructions. Go an adjustable chair.
Don't put your monitor in front of a window.
• We use should and shouldn't + infinitive to give communication or to talk well-nigh what we think is a good or bad idea.
You should wait down at the monitor, not upward.
You shouldn't utilize a monitor that'due south fuzzy or distorts the epitome.
• We can as well give advice by using gear up phrases like Information technology's a good idea to or It's a bad idea to
+ infinitive.
Instructions and communication
It's a expert thought to have a monitor with a tilt- and-swivel stand.
documents.The all-time position is between the screen and the keyboard, or at the same acme as the screen; this tin can reduce neck, back and eyestrain.
Irresponsible disposal of electronic waste tin can cause severe environmental and health issues. You just throw your old monitor or video arrangement into the bin.
В IWl In pairs, practise giving advice about how to use a monitor safely using should/shouldn't orIt's a expert/bad idea to. Wait at these guidelines for help.
i Don't open the monitor. Information technology'due south dangerous.
ii Don't stare at the screen for long periods of time.
3 Position the monitor at heart level or just below.
four Leave plenty space behind the monitor for unobstructed movement.
five Don't sit nearly the sides or back of CRT monitors. Utilise LCD screens instead - they're free from radiation.
half-dozen Go along the screen clean to preclude distorting shadows.
An ergonomic schoolhouse or function
Y'all accept been asked to write a list of guidelines for making your school or office more than ergonomic. Look at the definition of ergonomics at the bottom of folio 35 and then write an electronic mail to your teacher/managing director explaining your guidelines. Consider 1-viii below.
ane Physical layout of the piece of work site: desk areas, estimator equipment, filing cabinets, etc.
2 Lighting (overhead lights, desk lamps), glare and ventilation
iii Computer and part furniture: ergonomic chairs and desks
4 User-friendly and ergonomic devices: keyboards, mice, monitors, wrist rests, copyholders, etc.
5 Location and features of telephones
6 Layout of cables and switches for a wired network
7 Wireless internet admission and wireless network
viii Maintenance and technical repairs
Types of printer
How many types of printer can you retrieve of? Brand a list.
Read the commodity on page 38 and and then label the types of printer (ane-5). Which types of printer aren't pictured?
The quality (resolution) of the images goes up to 2,400 dots per inch (dpi)
1_________________
Provides high quality output: a resolution of 1,200-2,400 dpi
The resolution depends on the number of pins
3________________
Provides the highest resolution: more than iii,000 dpi
SHOULD I BUY?
Printing is the final phase in creating a certificate. Since the results you tin obtain with different types of printer will vary substantially, hither is a guide to help you decide which one is well-nigh suitable for your needs.
To begin with, yous should take into account that printers vary in price, speed, print quality, and other factors such as noise or printing method. Engineering science is evolving and so quickly that at that place is always a printer for every application or need.
Dot-matrix printers use pins to print the dots required to shape a graphic symbol. They can impress text and graphics; however, they produce relatively low resolution output — 72 to 180 dots per inch (dpi).They are used to print multi-part forms, cocky-copying paper and continuous-course labels.They are slower than light amplification by stimulated emission of radiation printers (see below) simply much cheaper.
Inkjet printers operate by projecting small ink droplets onto paper to form the required image. Color and hues are created by the precise mixing of cyan, magenta, yellow and blackness inks. Inkjets are fairly fast, quiet, and non as expensive as laser printers. Nonetheless, yous can even so expect high quality results because there are some inkjet printers on the market with a resolution of 2,400 dpi.
Laser printers produce output at great speed and with a very high resolution of 1,200—2,400 dpi. They scan the image with a laser beam and transfer information technology to paper with a special ink pulverization chosen toner. They are constantly beingness improved. In terms of speed and image quality, light amplification by stimulated emission of radiation printers are preferred by experts for various reasons; for instance, they have a wider range of scalable fonts than inkjets, can emulate dissimilar language systems, and tin produce loftier- quality graphics; however, they are even so expensive for home users.
Thermal transfer printers are used to produce colour images by transferring a wax-based ink onto the newspaper.They are popular for press bar codes, labels and medium-resolution graphics.
Imagesetters produce very loftier-resolution output (up to iii,540 dpi) on paper or on the actual moving picture for making the printing plates. In improver, they are extremely fast. Imagesetters are virtually oft used in desktop publishing (DTP). Although they produce the highest quality output, they have 1 of import disadvantage: they are too expensive for homes or pocket-sized offices.
In mod lithographic printing, images are created on a DTP computer then output directly to the press plates, without requiring movie as an intermediate stride. This technology is chosen calculator to plate, or CTP, and the machine used is called a platesetter.
Finally, we accept plotters. Plotters employ ink and fine pens held in a carriage to depict very detailed designs on newspaper. They are used for construction plans, engineering drawings and other technical illustrations. Nowadays, traditional plotters are being replaced with wide-format inkjets.
Observe words in the article with the following meanings.
i designs and images used in magazines, books, etc. (lines 10-15)________
2 output quality, measured in dots per inch (lines ten-15)................
3 a particular color inside the colour spectrum (lines 15-xx)__________
4 an ink pulverisation used in laser printers and copiers (lines 25-xxx)................
five ready of characters that can exist resized (enlarged or reduced) without introducing baloney (lines thirty-35) ____________________
6 a rectangular pattern of black lines of magnetic ink printed on an object so that its details can be read by a reckoner system (lines 35-40) .................................................
7 surface that carries a reproduction of the image, from which the pages are printed (lines 45-fifty)
8 in-betwixt; middle (lines 50-55)..................
Language work: connectors one
ALook at the Assist box and then put the words in italics from the article on folio 38 into the correct column of the table.
| Giving examples | Listing/Sequencing | Giving reason/crusade |
ВTry to add some more than connectors to each column. How exercise you say these connectors in your language?
Connectors 1
Connectors are linking words and phrases which join ideas and assist united states organize our writing. Connectors can be used for giving examples, listing or sequencing, and giving reason or crusade.
for instance, they have a wider range of...
To brainstorm with, you should take into account that printers vary in price...
In pairs, describe the features of your ideal printer.
Some common connectors appear in italics in the article on page 38. For more on other uses of connectors, run across Unit 11.
С ьШWrite a paragraph describing the printer(due south) you use at home or at work. Effort to employ some connectors. Think nearly these aspects: blazon, speed, resolution, print quality, memory, toll, impress consumables (ink cartridges etc.).
Choosing the right printer
API In pairs, choose the well-nigh suitable printer for each of these situations. Give reasons for your choices.
1 You desire to print documents, spider web pages and occasional photographs at home.
two A small company needs a printer which will exist shared past various users on a local area network (LAN).
3 A professional squad of architects and engineers demand to create accurate representations of objects in technical drawings and CAD.
4 A graphic arts business needs a printer to produce catalogues, brochures and other publications.
Multi-function printers
A yjy Listen to an excerpt from a consumer technology podcast nearly multi-role printers. What two disadvantages of multi-office printers are mentioned?
L. Listen again and reply these questions.
1 What is a multi-office printer?
2 Why are multi-function printers then popular?
3 What is the main advantage of PictBridge technology?
4 Apart from sheets of paper, what other things can multi-part printers print?
five What software do you ordinarily get when you buy a multi-office printer?
Comparatives
• We form the comparative of one- syllable adjectives by adding -er. tedious —slower
6 What advice does Mr Kelly give on ink cartridges?
Inkjet printers are slower than laser printers, but much cheaper Ii-syllable adjectives usually take more/less.
vii What type of device does he recommend for habitation users?
8 What type of device does he recommend for businesses?
Language piece of work: comparatives
Look at the Aid box and then consummate these sentences using the comparative form of the adjective in brackets.
1 A laser printer is generally (repose)
................................ than a low-cost inkjet
printer.
2 Multi-office printers are at present but slightly
(expensive)................................ than
conventional printers, and offering much (swell) versatility.
three The print quality of this network printer is
noticeably (skillful)__________________ than
any inkjet, and every bit (good)..............................
as like light amplification by stimulated emission of radiation printers.
iv The Agfa platesetter is (reliable)
..................... _............... and (easy)
................................ to employ than most printers
of its type.
Your printer is just as (good)
................................ equally the paper you lot use.
The final consequence is always (authentic) than the original image.
An imagesetter is (heavy)............................ _...
than a light amplification by stimulated emission of radiation printer.
■ more modern
They're designing a more mod version at the moment.
Adjectives ending in -y (for example, noisy) take -er and the у changes to i.
Dot-matrix printers are noisier than inkjets.
We form the comparative of adjectives with three or more than syllables by calculation more/less
versatile —>- more versatile
... they're cheaper and more than versatile than standalone products.
Notation the irregular forms:
good —► amend bad —>■ worse piffling —► less
If you want improve results, yous'll demand specialized software.
Equality is expressed by using equally as. Deviation can exist shown by using not as equally
This is every bit fast equally many other printers in its class.
Inkjets are not as expensive as light amplification by stimulated emission of radiation printers.
б Reading quiz - printer adverts
AIn pairs, read the adverts and then reply these questions. See who in your form can terminate first.
iHow many Inkjet printers are advertised?
twoWhich printer would you lot recommend to someone who wants to print advertisement graphics?
3If you accept the wide-format printer from Vutek, what kinds of material can yous impress on?
ivWhich technology lets yous impress straight from your digital camera without needing a figurer in between?
5A page clarification linguistic communication, or PDL, describes how to print the text and pictures on the page. Tin can you notice ii laser printer languages?
6What is the resolution of the Brother HL Network Colour Laser Printer?
7How fast is the Brother HL Network Colour Laser Printer?
Canon Meaty Photo Printer SELPHY CP750 Photo Printer
An inkjet photo printer with a 2.4" colour LCD for like shooting fish in a barrel viewing, editing and press of perfect borderless photos. With PictBridge, you can print direct from digital cameras, memory cards or camera phones (via IrDA or optional Bluetooth unit) without connecting to a PC.
Resolution: 300x300 dpi
Software: Easy-PhotoPrint
Dimensions: 179x127.1x63 mm
The Vutek UltraVu II5330 provides the ultimate combination of highest
print speed and best print quality in a five-metre printer.
v Broad-format professional inkjet printer
• Prints on a wide variety of substrates, including vinyl, and pressure level- sensitive paper, mesh and textiles
• VUTEK Low Friction Kit allows for hard materials to be run more easily
• Prints up to 16.4 feet (5 metres) wide
• Up to 330 dpi resolution produces images that are sharp, crisp and consistent
• Prints up to 2,230 foursquare feet (207 square metres) per 60 minutes
• Applications: banners, exhibition graphics, bus shelters, etc.
Blood brother HL Network Colour Laser Printer
The HL-4040CN delivers the perfect balance of quality, workgroup, colour A4 laser printing.
Impress Speed: up to 31 ppm (pages per minute) mono, 8 ppm colour (A4) Compatibility: PCL and PostScript languages Paper tray capacity: 250 sheets Memory size: 64MB Loftier-speed USB
It boasts outstanding color output: 2,400 dpi class colour printing with exceptionally well-baked, high-resolution text and graphics driven past Brother's exclusive printing enhancement technologies.
В yfyA friend has emailed you asking for advice about which printer to buy, the Canon SELPHY CP750 or the Blood brother HL Network Color Light amplification by stimulated emission of radiation Printer. Write an e-mail to your friend comparison the two printers. Apply the Assistance box on page 40 to assist you lot.
"issil^
nineDevices for the disabled
Assistive technology
A M In pairs, look at the words in the box and use equally many of them as you tin to describe the photos. You will not need all the words.
adapted keyboard on-screen keyboard voice recognition system screen-pointing device screen reader
blind person motor-impaired person screen magnifier Braille printer adaptive switch touch screen
pneumatic switch (sip and puff)
Devices for the disabled
iV-^one In pairs, discuss these questions.
1 What sort of difficulties do you retrieve are experienced by computer users with limitations of vision or mobility?
ii What types of device could be helpful to bullheaded users?
iii How tin can a person with mobility limitations communicate with a computer?
Computers for the disabled
ARead the text and find the following.
1 the laws which ensure equal opportunities for people with disabilities in the USA and the UK
2 how the blind student in the photo interacts with the car
iii the systems which type on the screen what is existence said in meetings
four the blazon of software which reads printed material, recognizes the text and then sends it to the PC
5 the system which is activated by the user's eye movements
6 the switch which can be used by someone with quadriplegia
vii the office of voice recognition devices
Displays, often called monitors or screens, are the
virtually-used output device on a reckoner.They provide instant feedback by showing you text and graphic images equally you work or play.
Most desktop displays use Liquid Crystal Display (LCD) or Cathode Ray Tube (CRT) technology, while nearly all portable computing devices, such as laptops, contain LCDs. Because of their slimmer blueprint and lower free energy consumption, LCD monitors (also called apartment panel or apartment screen displays) are replacing CRTs.
Basic features
Resolution refers to the number of dots of colour, known equally pixels (film elements), contained in a display. It is expressed past identifying the number of pixels on the horizontal and vertical axes. A typical resolution is 1024x768.
A pixel is a combination of red, green and blue subpixels
Ii measurements depict the size of your display: the aspect ratio and the screen size. Historically, computer displays, like about televisions, have had an aspect ratio of four:3 - the width of the screen to the height is four to 3. For widescreen LCD displays, the aspect ratio is sixteen:nine, very useful for viewing DVD movies, playing games and displaying multiple windows side by side. High- definition Goggle box likewise uses this format.The viewable screen size is measured diagonally, then a 19"screen measures 19" from the top left to the bottom correct.
Inside the computer at that place is a video adapter, or graphics card, which processes images and sends signals to the monitor. CRT monitors employ a VGA (video graphics adapter) cable, which converts digital signals into counterpart signals. LCD monitors utilize a DVI (digital video interface) connection.
Colour depth refers to the number of colours a monitor can display. This depends on the number of bits used to describe the colour of a unmarried pixel. For example, an former VGA monitor with an 8-bit depth can generate 256 colours and a SuperVGA with a 24-bit depth can generate 16.7 million colours. Monitors with a 32-bit depth are used in digital video, blitheness and video games to get certain effects.
Display technologies
An LCD is made of two drinking glass plates with a liquid crystal textile between them. The crystals block the light in dissimilar quantities to create the image. Active-matrix LCDs use TFT (thin picture transistor) engineering, in which each pixel has its own switch. The amount of light the LCD monitor produces is called brightness or luminance, measured in cd/k2 (candela per square metre).
A CRT monitor is similar to a traditional TV set. It contains millions of tiny crimson, green and blue phosphor dots that glow when struck past an electron beam that travels beyond the screen and create a visible image.
PCs can be connected to video projectors, which project the image onto a large screen. They are used for presentations and home theatre applications.
In a plasma screen, images are created by a plasma discharge which contains noble (non-harmful) gases. Plasma TVs permit for larger screens and wide viewing angles, making them platonic for movies.
Organic Light-Emitting Diodes (OLEDs) are thin-film LED displays that don't require a backlight to part. The textile emits low-cal when stimulated by an electrical electric current, which is known as electroluminescence.They consume less energy, produce brighter colours and are flexible - i.e. they tin can be aptitude and rolled up when they're not existence used.
Choosing the right display device
aE Listen to five customers in a computer store describing their display device needs. Which device (a-e) would you recommend to each person? In pairs, hash out your choices and give reasons for them.
Speaker 1________________________ Speaker 4____________________________
Speaker 2________________________ Speaker 5____________________________
Speaker 3________________________
Widescreen 24" apartment panel Resolution: 1920x1200 Colour support: 16.7 million Multiple video inputs, flash- bill of fare slots and USB ports
NEC MultiSyn LCD Monitor Screen size: 17"
Resolution: 1280x1024 (SXGA) Attribute ratio: 5:4 Effulgence: 400 cd/one thousandii
Dell UltraSharp LCD monitor
Cambridge- Hitachi interactive whiteboard Allows interaction with a projected computer image Board size: 78" Connected to the PC via USB Pointing device: cordless pen
Pioneer 50" Plasma Tv set Resolution: 1280x768 (XGA) Blu-ray Disc recorder five.1 surround sound system (Five audio channels plus one subwoofer)
Portable projector
DLP (Digital Lite Processing) applied science
Resolution: 1024x768
Projection screen
В Irll In pairs, hash out which of the brandish devices you lot would most like to own. Give reasons for your choice.
Brandish screens and ergonomics
iv Ergonomics
A BLi Listen to Tony Clark, an good in computer ergonomics, talking to some
role workers well-nigh wellness and safe. What health bug associated with
estimator use practise the part workers mention?
В Ipij Listen again and consummate these extracts.
1 Go a good chair, one that.......................................... your lower dorsum and is
ii Make certain your feet residue firmly........................................ or on a footrest.
3 Position the keyboard .............................................. your elbows, with your arms
___ __ ......i............................... the work surface ...
4 ... position the monitor at, or but below,..........................................
5 You should sit at________________________ from the front of the monitor, well-nigh fifty to 70
centimetres abroad.
half-dozen ... a kind of stand that lets you motion the monitor ....................................... , so you tin use it
at the correct angle and elevation.
С Friction match the extracts above (1-half dozen) with the correct parts of the diagram (a-f).
Ergonomics - the study of how people collaborate safely and efficiently with machines and their work conditions
Language work: instructions and advice
Look at the HELP box and so complete these wellness and condom guidelines withshould/shouldn't.
1 If y'all blazon a lot at your computer each
day, you........................... purchase an ergonomic
keyboard; it can help reduce the take a chance of repetitive strain injury.
ii You..................... place your mouse
inside easy reach and support your forearm.
3 If you decide to build your ain PC, protect yourself from electrical shocks. You
____________ touch any components
unnecessarily.
four You____________ e'er use a
copyholder if you lot are working from
• We use the imperative to give instructions. Become an adaptable chair.
Don't put your monitor in front end of a window.
• Nosotros utilize should and shouldn't + infinitive to give advice or to talk well-nigh what we think is a good or bad idea.
You should wait down at the monitor, non up.
You lot shouldn't use a monitor that'due south fuzzy or distorts the image.
• We can besides give advice by using set phrases like It'due south a skillful idea to or It's a bad idea to
+ infinitive.
Instructions and advice
It's a skillful idea to have a monitor with a tilt- and-hinge stand up.
documents.The best position is between the screen and the keyboard, or at the aforementioned height as the screen; this can reduce neck, back and eyestrain.
Irresponsible disposal of electronic waste product can cause severe environmental and health issues. You but throw your former monitor or video arrangement into the bin.
В IWl In pairs, practice giving communication about how to apply a monitor safely using should/shouldn't orInformation technology'due south a good/bad idea to. Look at these guidelines for assistance.
1 Don't open the monitor. Information technology's dangerous.
ii Don't stare at the screen for long periods of time.
iii Position the monitor at eye level or but below.
iv Exit enough space behind the monitor for unobstructed motion.
5 Don't sit near the sides or back of CRT monitors. Use LCD screens instead - they're free from radiations.
6 Go along the screen clean to preclude distorting shadows.
An ergonomic school or part
You have been asked to write a list of guidelines for making your school or office more than ergonomic. Look at the definition of ergonomics at the lesser of page 35 and then write an electronic mail to your instructor/director explaining your guidelines. Consider one-eight below.
one Physical layout of the work site: desk areas, calculator equipment, filing cabinets, etc.
ii Lighting (overhead lights, desk-bound lamps), glare and ventilation
iii Reckoner and office article of furniture: ergonomic chairs and desks
iv User-friendly and ergonomic devices: keyboards, mice, monitors, wrist rests, copyholders, etc.
v Location and features of telephones
6 Layout of cables and switches for a wired network
7 Wireless internet admission and wireless network
8 Maintenance and technical repairs
Types of printer
How many types of printer can y'all recall of? Make a list.
Read the article on page 38 and so characterization the types of printer (1-5). Which types of printer aren't pictured?
The quality (resolution) of the images goes up to 2,400 dots per inch (dpi)
1_________________
Provides loftier quality output: a resolution of 1,200-2,400 dpi
The resolution depends on the number of pins
3________________
Provides the highest resolution: more than iii,000 dpi
SHOULD I BUY?
Printing is the concluding stage in creating a document. Since the results you tin can obtain with different types of printer will vary substantially, here is a guide to assistance you decide which one is most suitable for your needs.
To brainstorm with, you should take into account that printers vary in cost, speed, print quality, and other factors such equally noise or printing method. Engineering is evolving so quickly that at that place is ever a printer for every application or need.
Dot-matrix printers apply pins to print the dots required to shape a graphic symbol. They can print text and graphics; withal, they produce relatively low resolution output — 72 to 180 dots per inch (dpi).They are used to impress multi-part forms, self-copying paper and continuous-form labels.They are slower than laser printers (see beneath) but much cheaper.
Inkjet printers operate by projecting small ink droplets onto newspaper to form the required image. Colour and hues are created by the precise mixing of cyan, magenta, xanthous and black inks. Inkjets are fairly fast, quiet, and not as expensive as light amplification by stimulated emission of radiation printers. Nevertheless, you can still look high quality results considering at that place are some inkjet printers on the market place with a resolution of 2,400 dpi.
Laser printers produce output at groovy speed and with a very high resolution of 1,200—2,400 dpi. They scan the epitome with a light amplification by stimulated emission of radiation beam and transfer it to paper with a special ink pulverisation chosen toner. They are constantly being improved. In terms of speed and paradigm quality, laser printers are preferred by experts for various reasons; for instance, they have a wider range of scalable fonts than inkjets, can emulate unlike linguistic communication systems, and tin can produce loftier- quality graphics; however, they are yet expensive for home users.
Thermal transfer printers are used to produce colour images by transferring a wax-based ink onto the paper.They are popular for printing bar codes, labels and medium-resolution graphics.
Imagesetters produce very high-resolution output (upward to 3,540 dpi) on paper or on the actual movie for making the press plates. In addition, they are extremely fast. Imagesetters are almost often used in desktop publishing (DTP). Although they produce the highest quality output, they have ane important disadvantage: they are too expensive for homes or pocket-size offices.
In modern lithographic press, images are created on a DTP computer and then output direct to the printing plates, without requiring film as an intermediate step. This technology is called reckoner to plate, or CTP, and the automobile used is called a platesetter.
Finally, nosotros have plotters. Plotters use ink and fine pens held in a carriage to draw very detailed designs on paper. They are used for construction plans, technology drawings and other technical illustrations. Present, traditional plotters are being replaced with wide-format inkjets.
Find words in the article with the post-obit meanings.
i designs and images used in magazines, books, etc. (lines ten-fifteen)________
ii output quality, measured in dots per inch (lines x-15)................
iii a particular colour within the colour spectrum (lines xv-20)__________
4 an ink powder used in light amplification by stimulated emission of radiation printers and copiers (lines 25-30)................
5 set of characters that tin can be resized (enlarged or reduced) without introducing distortion (lines 30-35) ____________________
6 a rectangular pattern of black lines of magnetic ink printed on an object so that its details can be read past a reckoner arrangement (lines 35-40) .................................................
7 surface that carries a reproduction of the paradigm, from which the pages are printed (lines 45-50)
8 in-betwixt; middle (lines 50-55)..................
Linguistic communication work: connectors 1
ALook at the HELP box and then put the words in italics from the article on page 38 into the correct cavalcade of the table.
| Giving examples | List/Sequencing | Giving reason/cause |
ВTry to add some more connectors to each cavalcade. How do you lot say these connectors in your language?
Connectors i
Connectors are linking words and phrases which join ideas and help us organize our writing. Connectors can be used for giving examples, list or sequencing, and giving reason or cause.
for instance, they have a wider range of...
To begin with, you should take into business relationship that printers vary in toll...
In pairs, describe the features of your ideal printer.
Some common connectors appear in italics in the article on page 38. For more on other uses of connectors, see Unit 11.
С ьШWrite a paragraph describing the printer(southward) you employ at home or at piece of work. Try to use some connectors. Think almost these aspects: blazon, speed, resolution, impress quality, memory, cost, print consumables (ink cartridges etc.).
Choosing the right printer
API In pairs, choose the most suitable printer for each of these situations. Give reasons for your choices.
1 Yous want to print documents, web pages and occasional photographs at home.
2 A small company needs a printer which will be shared by various users on a local surface area network (LAN).
3 A professional team of architects and engineers demand to create accurate representations of objects in technical drawings and CAD.
4 A graphic arts business organisation needs a printer to produce catalogues, brochures and other publications.
Multi-function printers
A yjy Listen to an excerpt from a consumer applied science podcast about multi-office printers. What two disadvantages of multi-function printers are mentioned?
L. Listen again and answer these questions.
1 What is a multi-part printer?
2 Why are multi-function printers so popular?
3 What is the main advantage of PictBridge technology?
4 Apart from sheets of paper, what other things can multi-function printers print?
5 What software do you normally get when you buy a multi-function printer?
Comparatives
• We form the comparative of one- syllable adjectives past calculation -er. tedious —slower
6 What communication does Mr Kelly give on ink cartridges?
Inkjet printers are slower than laser printers, but much cheaper Two-syllable adjectives commonly take more/less.
7 What type of device does he recommend for abode users?
8 What type of device does he recommend for businesses?
Linguistic communication work: comparatives
Look at the HELP box and so complete these sentences using the comparative course of the adjective in brackets.
1 A laser printer is generally (quiet)
................................ than a low-cost inkjet
printer.
2 Multi-function printers are now only slightly
(expensive)................................ than
conventional printers, and offer much (corking) versatility.
3 The print quality of this network printer is
noticeably (good)__________________ than
any inkjet, and every bit (good)..............................
equally similar laser printers.
iv The Agfa platesetter is (reliable)
..................... _............... and (like shooting fish in a barrel)
................................ to use than most printers
of its type.
Your printer is merely every bit (good)
................................ every bit the paper you use.
The concluding result is always (accurate) than the original image.
An imagesetter is (heavy)............................ _...
than a light amplification by stimulated emission of radiation printer.
■ more modern
They're designing a more modern version at the moment.
Adjectives ending in -y (for example, noisy) take -er and the у changes to i.
Dot-matrix printers are noisier than inkjets.
Nosotros form the comparative of adjectives with three or more than syllables by adding more/less
versatile —>- more than versatile
... they're cheaper and more versatile than standalone products.
Notation the irregular forms:
good —► better bad —>■ worse little —► less
If you lot want improve results, you lot'll need specialized software.
Equality is expressed by using as as. Difference tin can exist shown past using not as as
This is as fast as many other printers in its class.
Inkjets are not as expensive equally laser printers.
б Reading quiz - printer adverts
AIn pairs, read the adverts and then answer these questions. See who in your class can finish outset.
oneHow many Inkjet printers are advertised?
iiWhich printer would you recommend to someone who wants to print advertising graphics?
3If you have the wide-format printer from Vutek, what kinds of material can you print on?
4Which technology lets you lot print direct from your digital camera without needing a computer in between?
5A folio description language, or PDL, describes how to impress the text and pictures on the page. Can you find two laser printer languages?
sixWhat is the resolution of the Brother HL Network Color Laser Printer?
sevenHow fast is the Brother HL Network Colour Laser Printer?
Canon Compact Photo Printer SELPHY CP750 Photograph Printer
An inkjet photo printer with a ii.4" colour LCD for piece of cake viewing, editing and press of perfect borderless photos. With PictBridge, yous tin print directly from digital cameras, memory cards or camera phones (via IrDA or optional Bluetooth unit) without connecting to a PC.
Resolution: 300x300 dpi
Software: Easy-PhotoPrint
Dimensions: 179x127.1x63 mm
The Vutek UltraVu II5330 provides the ultimate combination of highest
print speed and best impress quality in a v-metre printer.
v Wide-format professional inkjet printer
• Prints on a wide multifariousness of substrates, including vinyl, and pressure- sensitive paper, mesh and textiles
• VUTEK Low Friction Kit allows for difficult materials to be run more than hands
• Prints upwardly to 16.4 anxiety (5 metres) wide
• Upwardly to 330 dpi resolution produces images that are sharp, crisp and consistent
• Prints up to two,230 square feet (207 square metres) per hour
• Applications: banners, exhibition graphics, double-decker shelters, etc.
Brother HL Network Colour Light amplification by stimulated emission of radiation Printer
The HL-4040CN delivers the perfect balance of quality, workgroup, colour A4 laser printing.
Print Speed: upward to 31 ppm (pages per minute) mono, eight ppm colour (A4) Compatibility: PCL and PostScript languages Paper tray capacity: 250 sheets Retention size: 64MB High-speed USB
It boasts outstanding colour output: ii,400 dpi class colour printing with exceptionally crisp, high-resolution text and graphics driven by Brother'due south exclusive printing enhancement technologies.
В yfyA friend has emailed you asking for communication about which printer to buy, the Canon SELPHY CP750 or the Blood brother HL Network Color Light amplification by stimulated emission of radiation Printer. Write an email to your friend comparing the 2 printers. Apply the HELP box on folio forty to aid you.
"issil^
nineDevices for the disabled
Assistive technology
A M In pairs, look at the words in the box and use every bit many of them as you can to describe the photos. You will not need all the words.
adapted keyboard on-screen keyboard vocalisation recognition system screen-pointing device screen reader
blind person motor-dumb person screen magnifier Braille printer adaptive switch bear upon screen
pneumatic switch (sip and puff)
Devices for the disabled
iV-^1 In pairs, discuss these questions.
1 What sort of difficulties do you think are experienced by computer users with limitations of vision or mobility?
2 What types of device could be helpful to blind users?
three How can a person with mobility limitations communicate with a reckoner?
Computers for the disabled
ARead the text and discover the following.
1 the laws which ensure equal opportunities for people with disabilities in the Us and the UK
two how the blind student in the photo interacts with the auto
3 the systems which type on the screen what is being said in meetings
iv the type of software which reads printed material, recognizes the text and then sends it to the PC
five the system which is activated by the user'south center movements
vi the switch which can be used by someone with quadriplegia
vii the office of voice recognition devices
Source: https://studopedia.ru/15_64038_How-screen-displays-work.html
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