| A | B |
|---|
| Drive Interface | a collection of electrical and logical connections between a hard drive and a PC |
| LUN | a unique identifier for subdevices assigned to a single SCSI ID |
| Display Adapter | A PC expansion board that converts the images created in the computer to the electronic signals required by the moniter |
| VGA | 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 use on its modems and now used on most modems |
| Asynchronous | A bit synchronization transmission technique that uses start and stop bits |
| IDE | A method of disk drive manufacturing that allocates all the required controller circuitry in the drive itself you can connect two hard drives to an IDE connection or channel |
| Enhanced IDE (EIDE) | allows for two channels that can each support two devices |
| AT Attachment (ATA) | commonly known as IDE the "AT" refers to the IBM-AT computer where this interface was first used also known as the ISA bus this is a 16-bit data bus |
| ATA-33 | an extension to the ATA interface that will effectively double the top data transfer speed up to 33 Mbps also known as ultra-IDE |
| SCSI | a standard data pathway used mostly for hard drives and CD-ROM drives but also a common interface for scanners and sometimes printers |
| Milisecond | one thousandth of a second usually used to measure the access speed of hard drives |
| MTBF | mean time between failures time mormally given in hours that predicts the failure of a device |
| COM1 | the label used in MS-DOS assignedto serial port 1 |
| LPT1 | the label used in MS-DOS assigned to parallel port 1 |
| Scanner | a device used to copy an image from a physical source 1 (such as a photograph) into a computer |
| Safe Mode | windows 95 mode automatically located if windows 95 crashes during hook up access safe mode anytimeof you press the F8 key when screen says "loading windows 95" |
| 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 a computer by pressing Ctrl+Alt+Delete |
| Boot Disk | a write-protected floppy disk that contains the computers system and startup files |
| Boot Sector | a postion of a disk that contains the coded instructions for the operating system to start the computer |
| POST | group of ROM BIOS diagnostic tests that are performed on the system each time it is powered up |
| System Hang | usually has an opportunity to display an error or diagnostic message if entre system fails a message will not appear and input is usually blocked keystrokes and mouse click will be ignored worst cases system cannot be restarted without turning system off completely |
