System Vocb

• Central processing unit- The part of the computer that executes instructions, controls the flow of data adn performs the arithmetic and logic decisions.
• Expansion Slots- A part of the motherboard that allows the connection of circuit boards with additional ports. These ports let the user attach additional devices to the computer.
• Flash Memory- A type of removable memory commonly used in small and-held devices, such as cell phones, digital cameras, and digital music players.
• Graphical user interface- A design for the part of an operating system in which the user typically operates a mouse to point and click on graphic icons representing files, folders, disk, and programs.
• Hard Drive- 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 devices.
• Input divice- Any device that accepts data from the user, such as a keyboard or mouse.
• Linux- an operating system based on Unix that permits any programmer to improve upon it and is available as freeware.
• MacOS- The operating system of the Macintosh line of computer systems.
• Mainframe- A computer system used by large organizatins that can support many users and large databases.
• Minicomputer- 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 comtaining 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 system that defines the type of programs and devices your computer will support.
• Professional workstation- A computer system smaller than a minicomputer but more powerful than most personal computers.
• Random Access Memory- A computer's primary working memory that temporarily stores information while the computer is turned on. The central processing unit works with information stored in RAM.
• Read-only memory- The part of a computer's primary storge that permanently stores information, even when the computer is turned off.
• Supercomputer- A computer that is faster and more powerful than a mainframe. Supercomputers are used by large research facilities or government agencies needing a lot of processing ability .
• Syntax- The structure for entering function and commands, including spelling, punctuatin, and acceptable keywords.
• System software- The software necessary to operate and maintain a computer system, including operating systems ans utility programs.
• System Uint- The case that holds the main internal circuity of a computer including the motherboard, disk drives, and power supply.
• User Interface- The visual portion of the operating sysem software that determines the manner in which user interact with the computer.
• Utility Program- A program that assists the user in maintaining and improving theoperating system. Some utility programs are suppiles by the operating system while others are sold by third-party vendors.
• virus- A program designed as a prank that replicates itself from one computer to another. Viruses can be harmless but annoying to users or they can affect software performance and destroy information.
• Windows- The common name of the family or operating systems with graohical user interfaces, manufacturned by Microsoft Corp.