• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Different Types of Output Devices.

Extracts from this document...


Monitors The monitor, screen or visual display unit (VDU) is the most common computer output device. Popular screen sizes are 15 inches (38 cm) and 17 inches (43 cm). Larger monitors make working at a computer easier on the yes and are essential for use in desktop publishing and design work. Cathode ray tubes Traditional computer monitors are similar to televisions. They use cathode ray tubes (CRTs) which are large and heavy, but can produce high-quality displays. Flat panel displays The screen on notebook computers and flat panel monitors use LCD or TFT displays: LCD (Liquid Crystal Display) These use tiny crystals which block the light from passing through them. ...read more.


Laser printers Laser printers work in a similar way to photocopiers. They are very popular, particularly where large quantities of mono (black) printing are required. They are quite, fast and economical to run. A 12- page -per-minute printer can be purchased for about �150. Color laser printers are becoming more popular as their prices fall, but ink-jet printers are also a popular choice for color work. Ink-jet printers Ink-jet and bubble-jet printers are relatively inexpensive and produce high-quality black and color printing. This makes them a popular choice for home and school use. The printing speed is slower than a laser printer so, for many businesses where large volumes of printing are required, the laser printer is more suitable. ...read more.


Sound/voice Computers can be output both music and speech to speakers. Synthesized speech output, generated from a computer program, can be particularly useful for blind users, where passages of text or figures from a spreadsheet are spoken. One common example of speech synthesis is used by BT for their directory enquiry service. When you dial 192, the operator searches a computer database and locates the number. A computer then reads this number out to you by saying, "the number you requires..." Control applications Computers are also able to output data to devices that control machines and processes. Actuators Mechanical devices that generate movement are called actuators. Computer-controlled actuators can automate the operation of machines and are based on three types of mechanism: * Hydraulics * Pneumatics * motors ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Hardware section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Hardware essays

  1. Computer Hardware, uses, advantages and disadvantages.

    Scanner To detect errors in my work I used spelling and grammar checker and proof read the work to make sure there were no errors. I also checked that the scanned image/text was exactly the same way around as the original piece.

  2. Choosing hardware and input devices.

    Internet Explorer Mozilla Firefox The main function is that people have wide access to the information the want. The other function is that they can communicate, do a bit of shopping, and it can also be used for entertainment. It is much quicker and faster than internet explorer.

  1. Input and output.

    Advantages: allows users to use shortcuts to open new programs form their keyboards, a task can be carried out by pressing just one key. Disadvantages: none Digital camera A digital camera allows you to take pictures and to store a digital photographic image that can be read by a computer.

  2. ICT & Special Needs This essay focuses on the way that Mr Glassey uses ...

    He uses the word processing application to write lyrics for his musical work before having them recorded at a local studio. He uses the Internet Brower to view websites for entertainment in his spare time. Mr Glassey also uses the BrailleNote PK to listen to music, either his music or another artiste's music.

  1. GCSE ICT - Imput devices.

    Barcode scanner A barcode scanner is a laser light that scans barcodes. They save time and money. A barcode scanner can be connected to the computer through USB. They are used in shops to scan items that are purchased, issued or returned.

  2. Ict - Unit 2B

    department uses the mouse to manually produce detailed and attractive leaflets and posters to advertise the company. They also use it to drag and drop special symbols and features such as their company logo to represent what company this leaflet or poster is from.

  1. Comparing the use of input and output methods and devices

    The output that is produced may be permanent, for example, when it is on paper, or it may be temporary as on a computer screen. In any given situation, the choice of output device will depend on the type of output required together with such factors as: * Initial cost

  2. I will describe the hardware I have used in my system, the way they ...

    The user can identify what each button will do. People who are unfamiliar with QWERTY keyboards can use this one. It has a limited amount of options to be programmed. The difference it would make if used a concept keyboard is that I will not have to move my hands and fingers too much.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work