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VOC 1.01
| Term | Definition |
|---|---|
| Address | A unique binary representational of a location in memory |
| Address bus | Carries memory addresses that indicate data handles arithmetic and logic operations |
| Base unit | Housing that contains the motherboard, CD-RW/ DRIVE, and hard disk drive |
| Bus | A central network cable. Also a set of circuits that connect the CPU to other computers |
| Cache | High-speed memory used to store frequently used data so that it can be quickly retrieved by an application |
| Clock rate | The speed at which a CPU can execute instructions, measured in megahertz or gigahertz |
| Complier | A program that converts an entire program into machine code before the program is executed |
| Control bus | carries control signals |
| CPU (Central Processing Unit) | processes data and controls the flow of data between the computer's other units. Also contain the ALU. Located on the motherboard. |
| Desktop computer | A computer designed to fit on or under a desk |
| Ergonomics | The science that studies safe |
| expansion boards | Circuit boards that connect to the motherboard to add functionality to the computer |
| Handheld computer | A mobile computing device |
| Hardware | The physical components of the computer, such as the monitor and system unit |
| High-level programming languages | Third generation languages that have English-like instructions |
| Input device | Device used to enter data and instructions into the computer |
| Intergrated Circuits (ICs) | A silicon wafer with intricate circuits etched into its surface and then coated with a metallic oxide that fills in the etched circuit patterns. Also called a chip. |
| Interpreter | A program that translates an instruction before moving on to the next instruction in the program |
| LAN (Local Area Network) | A network used to connect devices within a small area |
| Low-level programing languages | First and second generation programming languages including machine language and assembly language |
| Megahertz (MHz) | Million of cycles per second |
| Motherboard | The main circuit board inside the base unit |
| Network | A combination of software and hardware that allows computers to exchange data and to share software and devices, such as printers |
| Object-oriented programming (OOP) | An approach to programming where modules are created that can be used over and over again |
| Operating system | Software that allows the user to communicate with the computer. Types include multiuser, multiprocessing, multitasking, multithreading, or real time |
| output device | A device used to convey processed data |
| Programming languages | A set of words, codes, and symbols that allows a programmer to communicate with the computer |
| RAM (Read Access Memory) | Memory that temporarily stores data and instructions. Also called primary or main memory |
| ROM (Read only Memory) | Memory that stores data and is a permanent part of the computer |
| Storage devices | Devices that use persistent media to maintain files. Also referred to as drives, mass storage, and auxiliary storage |
| WAN (Wide Area Network) | A network used to connect computers over large geographical distances |
| Wearable computer | A mobile computing device that is incorporated into clothing, eyewear, wrist wear, and other wearable |
| ALU (Arithmetic Logic Unit) | The part of the CPU that handles arithmetic and logic operations |
| IT (Information Technology) | A term that encompasses all aspects of computer-related technology |
| Peripheral device | A device attached to a PC |
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