| A | B | 
| Applications | programs that perform certain tasks | 
| Communication Channel | a path or a link that connects computers or peripheral devices to transfer information; examples are cables and wireless | 
| Data | an item of information | 
| Graphical User Interface (GUI) | displays images and pictures that allow a computer user to interact with a computer easily | 
| Hardware | physical components of a computer | 
| Internet | a worldwide collection of public networks that are linked to each other for information exchange | 
| Intranet | a special type of network used to communicate and share information within an organization | 
| Local Area Network (LAN) | connects devices within a limited area | 
| Network | a group of computers that are connected to share resources and exchange information | 
| Operating System | software that controls the computer’s hardware and provides services and access to the hardware to programs | 
| Platform | the hardware and the operating system together | 
| Programs | instructions that can be executed by a computer; also called software | 
| Server | the main computer on a network that provides services to other computers on the network | 
| Software | instructions that a computer can execute; also called programs | 
| World Wide Web | a collection of logically arranged information that is accessible on the Internet and stored on Web servers | 
| The Web | short for World Wide Web | 
| Wide Area Network (WAN) | a network that connects devices in geographically separated areas | 
| Workstation | a computer connected to a network |