Introduction to Computers - Key Terms

4)LAN (Local Area Network)-A LAN is a group of computers or devices connected together through a local network.LAN connections are usually very inexpensive.They are also usually very fast.LAN connections are usually within the same building.

Printers, Scanners & Photocopies – These are normally combined within the same machine if it’s multi-functional.

A: Internet: Internet means the network of networks that connected to all networks around the world. For an instance, if you send an email or a message using your mobile phone, then your mobile phone uses internet.

Domain structure – the Domain Structures allows the users or the program to interpret different information. For example take the address: http://www.netflix.com/

Optical Drive: uses lasers to read or write data to/from optical discs like CDs or

System extension used to make an association between two different PC systems or to gap one system into two. LAN switch-gives a focal association between two or more PCs on a system.

A LAN is a ‘Local Area Network’. It is a small network of computers most often

A computer network set up around an individual person in one building. i.e. in a house or a small office

A bit is a single number or a single value which can be either 0 or 1 and this value is represent the digital information. A byte is a sequence of bits; like a sequence of digital information, usually eight bits equals to one byte.

Computer Network: A LAN (local area network) that connects computers in a house, at school or at work.

The Internet- The global network formed by interconnecting most of the networks on the planet, with each home and company network connecting to an Internet service provider (ISP), which in turn connects to other ISPs.

What is a computer? There are thousands of different types of computers that are built for an extremely vast range of purposes, but overall, what do you class as a computer? Anything with a CPU?

An intranet is a computer network that uses Internet Protocol technology to securely share any part of an organization's information or network operating system within that organization. The term is used in contrast to internet, a network between organizations, and instead refers to a network within an organization. Sometimes the term refers only to the organization's internal website, but may be a more extensive part of the organization's information technology infrastructure. Organizations often use internet technologies to facilitate operations within the organization. Such systems might also include product support knowledge bases, training systems, and access to the organization's benefits system.

A LAN is a network of computers in a specific area interconnect using a variety of network media. For example, WBHS LAN are all the computers connected to the WBHS network via Ethernet, Wi-fi or other. This is different from a WAN (Wide area network) which extends to a much wider area such as a town, city and country. LAN are usually more restricted in access and more numerous.

In computing, input/output, or I/O, refers to the communication between an information processing system (such as a computer), and the outside world possibly a human, or another information processing system. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it. The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are used by a person (or other system) to communicate with a computer. For instance, a keyboard or a mouse may be an input device for a computer, while monitors and printers are considered output devices for a computer. Devices for communication between computers, such as modems and