Systems Voc

1.Central Processing unit(CPU)Residing on the motherboard.

2.expansion slotsConnections that let you install expansion boards.

3.Flash memorySmartmedia and compactflash cards store megabytes of data on small.thin.rectangular cards using a type of chip.

4.Graphical user interface.(GUI)lets user points and clickon recognizable, intuitive, and consistent objects, eliminating the need to memorize complex commands andand syntax.

5.hard drive.is the storage devices at the heart of most computer systems.

6.hardware.encompasses all the physical components of a computer system.

7.input device.are external to the systems unit and are attached ti its using specific connectors and ports.

8.linx.is a powerful operating system for PCs board on Unix.

9.MacOS.beginning with version 8.

10.mainframe.perfom mulitple tasks for many users simultaneously-usually for large corporations or organizations.

11.minicomputer.were common in the 1970s and 1980s.

12.motherboard.Residing on the montherboard is the central processing unit )CPU).

13.output device.Show you the results of the computer's processing.

14.platform.a Computer environment.

15.professional workstation.meets the needs of users requiring more computing power than a personal computer, yet less than a mincomputer.

16.random access memory(RAM).chips store data only temporaily; all information is erased when the computer is turned off.

17.read-only memory (RAM).chips have insturctions and data built into them.

supercomputer.meet this need by processing trillions of calculations per second.

18.syntax.Bell Laboratories devleoped the Unix operating system in the early 1970s, long before the introduction of the PC.

19.system software.includes the operating system and utility programs that help to operate and maintain youe computer data management.

20.system unit.is the case that houses the computer internal processing circuitry-including the motherboard, disk drives,power supply plug in borads and internal speakers.

21.user interface.the way in which thge user interacts with the computer.

22.utility program.the other part of the system software perform behinid the scenes duties that are important but not essntial to the base operating of the system.

23.virus.are small pieces of unauthorized program code written to invade hard drives.

24.windows.Early version of Windows were really not operating systems at all- they were merely graphical shells that overlaid MS-DOS and made it easer to use.

25.linux.a powerful operating system for PCs based on Unix.

26.operating system.(OS)-the software program that oversees and contrals everthing that happens while your computer is turned on.