Types of computers ii

Types of ComputersMr. Graves

Mainframe

A very large, expensive type of computer system that can be used by many people at the same time.

They are used by the government, universities, and major industries.

Minicomputer

This is a computer system that is smaller and less expensive than a mainframe but still can be used by many users.

Larger businesses use them.

Microcomputer

They are smaller in size and cost much less then mainframes and minicomputers.

A desktop computer system is found in schools, homes, libraries, and small businesses.

Laptop

A portable computer with an integrated keyboard and pointing device.

Can run regular desktop software, but in a smaller package.

Tablet

A portable computer that lets the user enter input through a touchscreen, usually with a finger.

Early models were laptops with screens that could be written on with a stylus.

Handheld

A small portable computer that lets the user enter input through a touchscreen, usually with a finger.

Early models were PDAs with screens that could be written on with a stylus. Current examples include iPod Touch and smartphones

Network

A network is a group of connected computers that allow people to share information and equipment.◦A Local Area Network (LAN) is a network

where the computers are all located in the same building or buildings nearby.

◦A Wide Area Network (WAN) has computers that are located in different buildings that are spread out from each other.

Server

A computer or device on a network that manages network resources.◦A network server is a computer that manages

network traffic.◦A file server is a computer and storage device

dedicated to storing files – any user on the network can store files.

◦A printer server is a computer that manages one or more printers.

FYI: People who operate server computers are called administrators.

Client

A computer on a network that requests access to network resources like files and printing.

People that use client computers are called users.