Computer Literacy Basics Lesson 1
Terms
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- Channel
- Media, such as telephone wire, coaxial cable, microwave signal or fiber optic cable, that carry or transport data communication messages
- Computer
- Electronic device that receives data, processes data, stores data, and produces a result.
- Computer system
- Hardware, software, and data working together
- Data
- Information entered into the computer to be processed that consists of text, numbers, sounds and images.
- Data Communications
- Transmission of text, numeric, voice or video data from one machine to another.
- Hardware
- The tangible, physical equipment that can be seen and touched.
- Internet
- The largest network used as a communication tool.
- Local Area Network (LAN)
- A series of connected personal computers, workstations, and other devices, such as printers or scanners, within a confined space, such as an office building.
- Mainframe Computer
- Large, powerful computers that are used for centralized storage, processing, and management of very large amounts of data.
- Microcomputer
- Sometimes called a personal computer; used at home or at the office by one person; can fit on top of or under a desk.
- Network
- Connects one computer to other computers and peripheral devices.
- Notebook Computer
- Similar to a microcomputer; however, it is smaller and portable
- People
- Users of the computers who enter the data and use the output.
- Protocol
- Standard format for transferring data between two devices.TCP/IP is the agreed upon international standard for transmitting data.
- Receiver
- Computer that receives a data transmission
- Sender
- Computer that sends a data transmission
- Software
- Intangible set of instructions that tells the computer what to do.
- Supercomputers
- Largest and fastest computers, capable of storing and processing tremendous amounts of data.
- Wide Area Network (WAN)
- Computer networks that cover a large geographical area. Most WANs are made up of several connected LANs.