Types of Computers

History of Computers

How Computers Work

Types of Computers

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Types of Computers

Depending upon processing and operational needs, computers have been divided into different types. Today, super computers are the highest form of sophisticated computers that look into highly complicated computing; they undertake weather predictions and many phantom jobs that would take years to be done through human skill. The most logical and systematic creation of human history, computers are here to rule for a long time. Following are the main types of computers,

Home Computer or PC– As the name suggests, Personal Computers are for general use and can be used by one person at a time. Earlier, PCs were known as microcomputers. PCs are the most common and popular computer widely used for every day functions like computing, word processing and normal functioning.

Microcomputer— A stand-alone computer containing at least a microchip, a keyboard, a display, and some sort of memory, running under an operating system. Typically, microcomputers have separate elements, and extensions such as network links, graphical pointers, and storage are added to a core system.

Desktop – A non-portable PC is known as the Desktop computer. A fixed computer, by desktop computer, it is normally meant that the computer is permanently fixed to a location. It has inbuilt advantages like power efficiency, storage capacity and cost-effective.

PDAs/Palmtops– These mini computers that fit into your palm are widely used these days. Also known as Personal Digital Assistants (PDAs), they use flash memory for storage, instead of bulky hard drives. It uses touch-screen instead of keyboard for input. Light, smart and with a practical battery life—the larger version of palmtop is handheld computer.

Laptop/Note books– Unlike desktop computers, laptops or notebooks are portable computers that can be easily carried along. They have a reasonable battery life, processor, memory and hard drive for normal functioning. The new age lap tops are very light and easy to carry.

Workstation– Workstation is a version of desktop computers. It has a comparatively powerful processor, enhanced memory and capabilities for multitasking.

Mainframe– Early computers were mainframe computers that were so enormous that they could occupy a complete room. They were huge machines used for processing loads of information. It supports many users and has the storage and computing capacity needed for large database. Data is generally stored on huge reel-to-reel magnetic tapes that require extensive physical storage space. Mainframe computer users make use of dumb terminals, which have screens and keyboards to connect to the mainframe.

Minicomputer- Built between 1963 and 1987, minicomputers are normally referred to as mid-range servers. It is a computer that is between a mainframe and a microcomputer in its size and capacity. It can serve anywhere between 10 and 100 users simultaneously.

Supercomputer– The most powerful computer systems, it is a very expensive computer used for highly complex processing. Normally used for scientific and high computing and engineering and research needs, it executes at or near the current highest operational rate for computers. It is capable of handling large. The most significant difference between a supercomputer and a mainframe is that a supercomputer processes a few operations in the fastest time possible, while the mainframe computer executes many programs at the same time. Cray supercomputer is the most popular supercomputer built till date.

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