Technology has grown rapidly. Following radio, television and telephone technology that has been developed previously, the computer has now become a part of human life. Computers are used we met in schools, offices, public places, even in households. Computers are widely used because it can support a variety of needs and human activities. This article will give general description of what and how the computer.

Knowing Computers

Computers are a set of tools used to process the data according to certain procedures. Computer consists of hardware and software. Hardware is the physical computer, ranging from the keyboard, screen, component, supporting up to devices such as printers. Software is computer programs, ranging from operating systems, applications, to programming language.

Computers were first produced around the year 1940-1945, imagine a room full of sizes. Technological innovation that continues today to make computers more compact, the various types, and more efficient.

Computer Types

Nowadays the computer has evolved into various types, according to the size and purpose:

• Personal Computer (PC) or Microcomputer, the computer designed for use by individuals. Personal Computers are a common type we found, both desktop PC in office desks, and laptop that can be taken anywhere.
• Desktop PC is designed to be installed permanently in one place. This type of which has long been known to the public.
• Laptops or Notebooks, PCs that are designed to be used in a flexible, easy to move the location, and more energy efficient.
• Personal Digital Assistant (PDA) or Handheld Computer, the computer without a keyboard designed compact and small size. Operate via the touch screen.

Computer Types

• Workstations, PCs with the technical specifications and a higher ability to be used in group work.
• Servers, a computer with high technical specifications, is used as the main computer network. Its job was to serve the computers in the network.

Server

• Mainframe, large-scale server computers, typically used for servers in large corporations.
• Supercomputer, a combination of several computers that are designed to work in parallel to form a computer system, as if into a super computer.
• Wearable Computer, a computer application that integrates with other technology devices, such as the clock, phone, and so on.

Wearable Computers

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