| A | B |
|---|
| pixel | The smallest addressable unit on a display screen |
| centronics interface | the 36 pin standard for interfacing parallel printers, and other devices to a computer |
| resolution | The degree of sharpness of a displayed or printed character or image |
| refresh rate | The number of times per second that a device is re-energized |
| WYSIWYG | It refers to displaying text and graphics on screen the same as they will print |
| corona wire | A charged wire in a laser printer that draws the toner off the drum onto the paper |
| EPP | increases bi-directional transfer |
| ECP | designed for printers. It uses DMA channels, which reduces CPU overhead, and also provides a FIFO buffer |
| CRT | A vacuum tube used as a display screen in a video terminal or TV. |
| interlaced | provides a way of displaying more information on screen using a less-sophisticated circuit, but at a penalty of producing an annoying flicker visible on small elements such as icons and buttons. |
| non-interlaced | eliminate annoying flicker found in interlaced monitors, which illuminate half the lines in the screen in the first cycle and the remaining half in the second cycle. |
| degauss | To remove unwanted magnetism from a monitor or the read/write head in a disk or tape drive |
| FRU | laser printers, and refers to printer components that can be replaced as part of maintenance procedures. |
| fuser | the laser printer device that uses two rollers to heat toner particles, melting them onto the paper. |
| electrostatic photographic drum (EP drum) | type of drum used in laser printers. These drums depend on electrostatic charges to hold toner that is moved over to paper during the transfer step. |
