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Computer Literacy Basics
Module 1, Lesson 1 Vocabulary
21
Computer Science
8th Grade
08/18/2010

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Term
Channel
Definition
Media, such as telephone wire, coaxial cable, microwave signal or fiber-optic cable that carry or transport data communication messages.
Term
Computer
Definition
Electronic device that receives, processes, and stores data and produces a result.
Term
Computer system
Definition
Hardware, software, and data working together.
Term
Data
Definition
Information entered into the computer to be processed that consists of text, numbers, sounds and images.
Term
Data communications
Definition
Transmission of text, numeric, voice, or video data from one machine to another.
Term
Hardware
Definition
The tangible, physical equipment that can be seen and touched.
Term
Internet
Definition
The largest network used as a communication tool.
Term
Local area network (LAN)
Definition
A series of connected personal computers, workstations, and other devices, such as printers or scanners, within a confined space, such as an office building.
Term
Mainframe computers
Definition
Large, powerful computers that are used for centralized storage, processing, and management of very large amounts of data.
Term
Microcomputer
Definition
Sometimes called a personal computer; used at home or the office by one person; can fit on top of or under a desk.
Term
Microprocessors
Definition
An integrated circuit silicon chip that contains the processing unit for a computer or a computerized appliance.
Term
Minicomputers
Definition
Type of computer that is designed to serve multiple users and process significant amounts of data; larger than a microcomputer, but smaller than a mainframe.
Term
Network
Definition
Connects one computer to other computers and peripheral devices.
Term
Notebook computers
Definition
Similar to a microcomputer; however, it is smaller and portable.
Term
People
Definition
Users of the computers who enter data and use they output.
Term
Protocol
Definition
Standard format for transferring data between two devices. TCP/IP is the agreed-upon international standard for transmitting data.
Term
Receiver
Definition
Computer that receives a data transmission.
Term
Sender
Definition
Computer that sends a data transmission.
Term
Software
Definition
Intangible set of instructions that tells the computer what to do.
Term
Supercomputers
Definition
Largest and fastest computers, capable of storing and processing tremendous volumes of data.
Term
Wide area networks (WANs)
Definition
Computer networks that cover a large geographical area. Most WANs are made up of several connected LANs.
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