| A | B |
|---|
| Driver interface | a collection of electrical and logical connections between a hard drive and a PC |
| LUN | The physical number of a device in a daisy chain of drives, a unique identifier for subdevices assigned to a single SCSI ID |
| display adapter | An expansion board that plugs into a desktop computer that converts the images created in the computer to the electronic signals required by the monitor |
| VGA | The minimum standard for PC video display, which originated with IBM's PS/2 models in 1987. It supports earlier CGA and EGA modes and requires an analog monitor |
| AT command(set) | A series of machine instructions used to activate features on an intelligent modem. AT is a mnemonic code for ATtention, which is the prefix that initiates each command to the modem. AT is a mnemonic code for ATtention, which is the prefix that initiates each command to the modem. AT is a mnemonic code for ATtention, which is the prefix that initiates each command to the modem. AT is a mnemonic code for ATtention, which is the prefix that initiates each command to the modem. AT is a mnemonic code for ATtention, used for start and stop on modems |
| asynchronous | Refers to events that are not synchronized, or coordinated, in time. Starting the next operation before the current one is completed |
| IDE | a method of disk drive manufacturing that allocates all the required controller circuitry in the drive itself |
| EIDE | allows for 2 IDE channels that each support 2 devices |
| ATA | aka IDE, 1st used on the IBM-At computer |
| ATA-33 | an extension to the ATA that will effectively double the top data rate up to 33 mbps, this is the ultra IDE |
| SCSI | data pathway used for hard drives, CD-roms, and scanners |
| millisecond | used to measure access speeds of hard drives |
| system hang | when a program fails, causing the computer to completely lockup |
| POST | power on self test, a group of ROM BIOS diagnostic tests that are performed on the PC during bootup |
| cold boot | When you wait a few seconds before rebooting |
| warm boot | to restart by pressing CTRL + ALT + DLT twice, or use the Restart button on the case |
| boot disk | a write-protected floppy disk that contains system and startup files |
| boot sector | a portion of a disk that contains the coded instructions for the OS to start the computer |
| Safe mode | A windows interface used for troubleshooting, very basic, few options other than those needed to trouble shoot software |
| scanner | a device used to copy an image onto a computer |
| LPT1 | label used in MS-DOS assigned to parallel port 1 |
| COM 1 | label used in MS-DOS assigned to serial port 1 |
| MTBF | mean time between failures of the computer. predicts time of next crash |
