Friday, May 23, 2008

Thursday, May 15, 2008

Wednesday, May 14, 2008

Monday, May 12, 2008

Systems Vocabulary

1.Central processing unit-The CPU is responsible for performing all of the airthmetic and logical instructions that computer can do.

2.Expansion slots-Connections that et you install expansion boards also called (adapter cards)-circuit boards that allow you to attach additional devices to your computer system.

3.Flash memory-Smartmedia and CompactFash cards store megabytes of data on small, thin, rectangular cards using a type of chip known as Flash Memory.

4.Graphical user interface(GUI)-lets users piont and click on recognizable, intuituve, and consistent objects, elimanating the need to memorize complex commands and syntax.

5.Hard drive-is the storage device at the heart of most computer system.

6.Hardware-Encompasses all the physicak components of a computer sysytem.

7.Input device-Are external to the system unit and are attached to it using specific connectors and ports.

8.Linux-Is a powerful operating system for PCs based on Unix.

9.MacOS-beginning with version 8.

10.Mainframe-perform multiple tasks for many users simultanneosly-usually for large corporations or organizations.

11.Minicomputer-Smaller multiuser sysytems.

12.Motherboard-All computer circuitary is connected to the main circuit board.

13.Operting Syste(OS)-The software program that oversees and controls everything that happens while your computer is turned on.

14.Output device-Show you the results of the computer's processing.

15.Platform-The combination of a specific type of computer system and a specific version of operating system.

16.Professional workstation-Meets the needs users requiring more computing power than a personal computers.

17.Random acces memory(RAM)-Chips store data only temporarily; all; information is erased when the computer is turned off.

18.read-only memory(ROM)-Chips have instructions and data built into them.

19.Supercomputer-Meet this need by processing trillions of calculations per second.

20.Syntax-The user must type commands using particular keywords, punctuation symbols, and other rigidly enforced rules, collectively.

21.System Software-Includes the opertaing system and utility programs that help to operate and maintain your computer's data management tasks.

22.System Unit-Is the case that houses the computer's internal processing circuitry- including the motherboard, disk drives, power supply, plugin boards, and internal speakers.

23.User interface-The way in which the user interacts with the computer.

24.Utility program-The other part of the system software, perform "behind the scenes" duties that are important but not essential to the basic operating of the system.

25.Virus-Are small pieces of unathorized program code written to invade hard drives.

26.Windows-In 1985, Microsoft coraporation introduced its own graphical user interface.

Wednesday, May 7, 2008