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software designed for a specific purpose such as word processing, database creation, producing graphics, entertainment
a short program that loads some basic files into memory, then turns the startup operation over to the operating system
one program dominates the operating system but allows another program to run while the primary program is idle (MacIntosh and Windows 3.x)
a file used to group other files together in a hierarchical file structure. Analogous to a file folder in a paper filing system
the second part of a filename. typically three letters, that tell the OS the function of the file
file allocation table (FAT)
a table used by the operating system to recall the locations of files and bad sectors on the disk
graphical user interface (GUI)
OS interface that allows user to perform functions by selecting on-screen icons rather than issuing text-line commands
operating system (OS)
Software that provides the user with a file system structure and allows the user to communicate with the computer system's hardware
Plug and Play (PnP)
a BIOS function that enables the automatic detection and configuration of new hardware components. Also the automatic assignment of system resources such as DMA channels, interrupts, memory, and port assignments
POST (Power On Self Test)
a routine check of the computer's hardware that executes every time the computer is turned on
the directory at the top of the file structure hierarchy. analogous to a cabinet drawer in a traditional, paper filing system
using the reset button or key combination (ctrl-alt-del) to restart a computer that is already running
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