• 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...

Introduction

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.

Middle

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.

Conclusion

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

or


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.

    I also used drop down boxes to limit the search to make it easier to find the data. Mouse To detect errors in my work I checked that there were no extra/unwanted lines or marking made and that no other program or tool was clicked besides the one that I wanted.

  2. Choosing hardware and input devices.

    Websites can be made much more accurately and much more precise than Microsoft word. It is much more expensive than Microsoft word so it can't be purchased by everyone. The main difference it makes is that I would be able to work more accurately and create better websites.

  1. GCSE ICT - Imput devices.

    You can't play blu ray DVD on a normal DVD player but you can play DVDs on a Blue-ray player. Blu ray players are backward compatible; this means that blu ray player can also play normal DVDs. In the library members can not use optical drives because they are blocked instead they must use an external optical drive.

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

    Output Output device allow you to view information after it has been processed. Device Type The way it works Advantages Disadvantages Best place to use it Printer Laser In laser printers powdered ink is fused on to paper by heat and pressure.

  1. It design

    able to change when the system is running as they are constantly used and buttons have to be able to edit when the website does as well. For moving around the site there are also three devices available. First of all there is the mouse, it allows you to move around the computer, and click on different types of things.

  2. Powerpoint ICT

    Thought out the presentation I will be using the same font so my target audience will get use to the same font but I will change the font size in relation to the amount of space on each slide, because on one slide I may have more text than anther

  1. Ict - Unit 2B

    Input Devices: Mouse: The Marketing department uses the mouse regularly to fulfil there most simple and efficient needs when using a computer, such as when browsing the computer or reaching to other destinations where no keyboard shortcuts are available. Apart from the most basic uses of the mouse the Marketing

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

    Social at Home - Communication How it works This is a dual band mobile phone, working on Global System Mobile Communication/General Package Radio Service 900/1800 (GSM/GPRS 850/1900 also available), is purpose built for the blind and visually impaired. The device has state-of-art speech synthesis and excellent audio quality making it easy to understand and operate.

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