| A | B |
|---|
| IDE | Integrated device electronics. a method of disk drive that allocates all the required controller circuitry in the drive.(2 hard drives per controller) |
| Enhanced IDE (EIDE) | allows for two IDE channels each support two devicesthat can |
| AT Attatchment (ATA) | also known as IDE, also known as ISA bus, a 16-bit data bus |
| ATA-33 | extension to the ATA that will double top data transfer speed up to 33mbps.(ultra IDE) |
| SCSI | small computer standard interface. standard data pathway used mostly for hard drives and cd-roms, also common for scanners and printers |
| millisecond | one thousandth of a second used to measure access speed of hard drives |
| system hang | when a program fails, it has the opportunity to display an error or diagnostic message. if the entire system fails, messages dont appear and input is blocked. |
| POST | power-on self test.a group of ROM BIOS diagnostic tests that are performed on the system each time it is powered on. |
| cold boot | to turn on a computer, or to restart a computer by turning it off, waiting a few seconds and turning it on again |
| Warm Boot | to restart by pressing ctrl+alt=del |
| Boot Disk | a write-protected floppy disk that contains the computers system and start up files |
| Boot sector | A portion of a disk that contains the coded instructions for the operating system to start the computer |
| safe mode | win95 mode automatically loaded when windows crashes during boot up. pressing F8 during windows load up screen will access safe mode |
| Scanner | a device used to copy an image from a physical source(such as a picture) into a computer |
| LPT1 | the label used in MS-P assigned to parallel port 1 |
| COM1 | the label used in MS-DOS assigned to serial port 1 |
| MTBF | time in hours that normally predicts the failure of a device |
| Drive Interface | A collection of electrical and logical connections between a hard drive and a PC |
| LUN | Logical Unit Number is a unique identifier for subdevices assigned to a single SCSI ID |
| Display Adaptor | A PC expansion board that converts the images created in the computer to the electronic signals required by the monitor |
| VGA | Stands for Video Graphics Array. The minimum standard for PC video display, which originated with IBM's PS/2 models in 1987. |
| AT Commands | The modem command set developed by the Hayes company for the use on its modems and now used on most modems |
| Asynchronus | A bit synchronization transmission technique that uses start and stop bits. |
