Vocabulary

Central processing unit-is responsible for performing all of the arithmetic and logical instructions that the computer can do.
Expansion slots-circuits boarda that allow you to attach additional devices your computer system
Flash memory-A type of removable memory commonly used in small hand-held devices, such as cell phones, digital cameras, and digital music players.
graphing user interface- A desing for the part of na operating system in which the user typically operates a mouse to point and click on graphing icons representing files, folders, disks, and programs.
Hard druve-A nonremovable storage device used to hold software and data on a computer system.
Hardware- The physical parts of a computer system including input, output,storage , and other divice.
Input device-Any device that accepts data from the user, such as a keyboard or mouse.
Linux-An operation system based on Unix that permits any programmer to inprove upon it and 8is available as freeware.
MacOsThe- operating system of the Macistosh line of computer syste3m.
mainframe-A computer system used by large organizations that can support many users nad large databases.
minicomputer-A computer system amsller and less than a mainfrane but capable of supporting multiple users for a small to mediumsized organizations
motherboard-The main circuit board containing a computer's central processing unit (CPU), memory,and expansion.slots.
operating system-the soft ware program that overses and controls everything that happens while a computer is turned on.
output device-A part of the computer system that displays information to the user, such as a monitor or a orinter.
platform-The combination of hardware and operating sysyem that defines the type of programs and device your computer will support.
professional workstation-A computer system asmaller that a minicomputer but more powerful that most personal computers.
random acess memory-a computer 's primary working memory that temporarily stores information while computer is turn on.
read-only memory-The part of a computer's primary storage that performently stores information, even when the computer is turned off.
supercomputer-A computer that is fastre and more thana minframe.Supercomputer are used by large research facilities or government agencies needing a lot of processing ability.
syntax-The structure for entering functions and commands including spelling, punctuation,a nd acceptable keyboard.
system software-The software necessary to operate and maintain a computer, including operating systems and utility programs.
system unit-the case that holds the main, internal circuit of a computer including the motherboard, disk ,drives ,and power supply.
user interface-the visual portion of the operating system software that determines the manner in which users interact with the computer.
utility program- a progar that assists the user in maintaining anf=d improving the operating system.
virus-A program designrd as a prank that replicates itself form one computer to another.
windows-the common name of the family of operating system with graphing user interfaces, manufactured by Microsoft Corp.