| A | B |
|---|
| Break code | A code produced when a computer keybaord is released |
| Bus mouse | A mouse that plugs into a bus adapter card and has a round, 9-pin mini-DIN connector |
| CHKDSK command | A command that initiates checking of disk and RAM memory and displays possible problems |
| Cluster | One or more sectors that constitute the smallest unit of space on a disk for storing data. Files are written to a disk as groups of whole clusters. |
| Cluster chain | A series of clusters used to hold a single file |
| Copy command | A command that copies files from one location to another |
| DEL command | A command that deletes files |
| DELTREE | a command used to delete a directory all its subdirectories and all files within it |
| Directory | A DOS table that contains file information such as name, size, time, and date of last modification, and the cluster numbers of the file's beginning location |
| DISKCOPY | a command that copies the entire contents of one disk to another disk of the same type, while formatting the destination disk so that the two will be identical |
| Erase | another name for the DEL command |
| File allocation table | FAT a table on a disk that tracks the clusters used to contain a file |
| Formatting(a floppy drive) | To prepare a new floppy disk for use by placing tracks or cylinders on its surface to store information. |
| Fragmented file | Files that have been written to different portions of the disk so that they are not in contigious clusters. |
| Green monitor | a monitor that is designed to conserve energy by using different techniques |
| Make code | A code produced by pressing a computer keybaord |
| Master bood record (MBR) | the record written near the beginning of a floppy disk containing information about the disk as well as the startup operating system programs |
| Multiscan monitor | a monitor that can work within a range of frequencies, and thus can work with different standards and video adapters. |
| Pixel | small dots on a fine horizontal scan line that are illuminated to create an image on the monitor |
| RECOVER | a command that recovers files that were lost because of a corrupted file allocation table |
| Rescue disk | A DOS disk that can be used to start up a computer when the hard drive fails to boot. It must contain the system files IO.SYS, MSDOS.SYS & COMMAND.COM |
| Root directory | The main directory on a disk which typically contains other directories, such as Wendows and MSOffice |
| Serial mouse | A mouse that uses a serial port and has a femail 9-pin DB-9 plug |
| System board mouse | A mouse that plugs into a round mouse port on the system board |
| UNDELETE | a command that retrives previously deleted files, provided that their locations have not been written over |
| Video controller card | A card installed in the computer to control the monitor |
| XCOPY | a faster external DOS COPY |
