Chapter 6 computer input and output

Older LCDs had slow response times and low contrast, but active matrix LCD screens have a transparent thin film transistor TFT controlling Chapter 6 computer input and output pixel, so response, contrast, and viewing angle are much improved.

Laser Printer Inkjet Printer A laser printer produces good quality images by the same technology that photocopiers use. As with CRTs, the display size of a flat panel is expressed in inches, and the resolution is the number of pixels horizontally and vertically on the display.

They have been more expensive than CRTs in the past, but the price gap is narrowing. These printers are slow and noisy, and are not commonly used for personal computers anymore but they can print multi-layer forms, which neither ink jet or laser printers can.

Most laser printers are monochrome one color only, usually blackbut more expensive laser printers with multiple color toner cartridges can produce color output. Laser printers are faster than ink jet printers. The printer needs several colors of ink cyan, yellow, magenta, and black to make color images.

Flat panel displays are much lighter and less bulky than CRT monitors, and they consume much less power. A drum coated with photosensitive material is charged, then an image is written onto it by a laser or LEDs which makes those areas lose the charge.

The LCD consists of several thin layers that polarize the light passing through them. Ink jet printers are inexpensive, but the cost of consumables ink cartridges and special paper make them costly to operate in the long run for many purposes. Other types of flat panel technology exist such as plasma displays but LCDs are most commonly used in computers, especially laptops.

Other Printers Laser Printer Multi-function printers are available that not only operate as a computer printer, but also include the hardware needed to be a scanner, photocopier, and FAX machine as well.

Multimedia is a term describing computer output that includes sound, text, graphics, movies, and animation. Dot matrix printers use small electromagnetically activated pins in the print head, and an inked ribbon, to produce images by impact.

The toner is then deposited onto the paper, and then fused into the paper with heat. The most common type of printer for home systems is the color ink jet printer.

A sound card is an example of a multimedia output device as is a monitor that can display graphics. The drum then rolls through toner tiny plastic particles of pigment that are attracted to the charged areas of the drum.

Ink Jet Printer Flat panel display LCD For hardcopy printed output, you need some kind of printer attached to your computer or available over a network. These printers form the image on the page by spraying tiny droplets of ink from the print head.

The polarization of one layer, containing long thin molecules called liquid crystals, can be controlled electronically at each pixel, blocking varying amounts of the light to make a pixel lighter or darker. Sound Output Computers also produce sound output, ranging from simple beeps alerting the user, to impressive game sound effects, to concert quality music.

The circuitry to produce sound may be included on the motherboard, but high quality audio output from a PC usually requires a sound card in one of the expansion slots, connected to a set of good quality external speakers or headphones.

You will see many more flat panels in the future. Some photo-quality ink jet printers have more colors of ink.Red Hat Customer Portal. Skip to main content. Main Navigation. Products & Services. Back; For your security, if you’re on a public computer and have finished using your Red Hat services, please be sure to log out.

Log. Input and Output Devices: Links to topics on this page: Before a computer can process your data, you need some method to input the data into the machine. The device you use will depend on what form this data takes (be it text, sound, artwork, etc.).

Learn input chapter 6 input output with free interactive flashcards. Choose from different sets of input chapter 6 input output flashcards on Quizlet. Mar 13,  · Chapter 6 - Input and Output.

Chapter 6 - Input and Output. Skip navigation Sign in. Search. Input Devices in computer Graphics - Duration: QuickCS 6, views. Chapter 6 Basic Input & Output. Basic Output in C++ Output Stream - A sequence of characters from the computer to an output device. To output information in C++ we will use a variable called cout (pronounced "see-out").

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Chapter 6 computer input and output
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