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Computer Systems
Harrell Computer Sytems Vocabulary
| Question | Answer |
|---|---|
| CPU | the part of the computer that executes instructions, controls the flow of data, and performs the arithmetic and logic decisions |
| expansion slots | the part of the motherboard that allows the connection of circuit boards with additional ports |
| flash memory | a type of removable memory commonly used in small hand-held devices such as a jump drive |
| GUI | a design for the part of the operating system in which the user typically operates a mouse to point and click on icons |
| hard drive | a non-removable 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 devices |
| input device | any device that accepts data from the user, such as a keyboard or a mouse |
| MacO | the operating system for Macintosh computers |
| mainframe | a computer system used by large organizations that can support many users and large databases |
| minicomputer (PC) | a computer system smaller and less powerful than a mainframe but capable of supporting multiple users for a small to medium-sized organization |
| motherboard | the main circuit board containing a computer's central processing unit, memory, and expansion slots |
| operating system | the software program that oversees and controls everything that happens while a computer is turned on, such as running the application software, managing the hardware, and maintaining file storage |
| output device | a part of the computer system that displays information to the user, such as a monitor or a printer |
| platform | the combination of hardware and operating software that defines the types of programs and devices your computer will support |
| professional workstation | a computer system smaller than a minicomputer but more powerful than most personal computers |
| RAM | a comupter's primary working memory that temporarily stores information while the computer is turned on |
| ROM | the part of a computer's primary storage that permanently stores information, even when the computer is turned off |
| supercomputer | a computer that is faster and more powerful than a mainframe. These are used by large research facilities or government agencies |
| syntax | the structure for entering functions and commands, including spelling, punctuation, and acceptable keywords |
| system software | the software necessary to operate and maintain a computer system, including operating systems and utility programs |
| system unit | the case (tower) that holds the main, internal circuitry 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 program that assists the user in maintaining and improving the operating system |
| virus | a program designed as a prank that replicates itself from one computer to another |
| Windows | the common name of the family of operating systems with graphical user interfaces, manufactured by MicroSoft Corporation |
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