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Types of Computer

Parts of Computer

Network Topology

                                                          TYPES OF COMPUTER

Computers can be classified, or typed, many ways. Some common classifications are summarized below.


Digital computers: The Digital computers work upon discontinues data. They convert the data into digits,0 and 1, and all operations are carried out on these digits at extremely fast rates.
Examples: Personal computer, Calculator etc.

Analog Computers: These are almost extinct today. These are different from a digital computer because an analog computer can perform several mathematical operations simultaneously. It uses continuous variables for mathematical operations and utilizes mechanical or electrical energy.
Examples: Voltmeter, Radio, etc.

Hybrid Computers: These computers are a combination of both digital and analog computers. In this type of computers, the digital segments perform process control by conversion of analog signals to digital ones.
Examples: Mobile .

Microcomputers:Microcomputers are the most common type of computers in existence today, whether at work in school or on the desk at home. The term "microcomputer" was introduced with the advent of single chip microprocessors. The term "microcomputer" itself, is now practically an anachronism.
Examples:Desktop computers,Laptop and notebook computers,Personal digital assistants (more commonly known as PDA's)

Minicomputer:A minicomputer (colloquially, mini) is a class of multi-user computers that lies in the middle range of the computing spectrum, in between the largest multi-user systems (mainframe computers) and the smallest single-user systems (microcomputers or personal computers). The contemporary term for this class of system is midrange computer, such as the higher-end SPARC, POWER and Itanium -based systems from Sun Microsystems, IBM and Hewlett-Packard.

Mainframe: The term mainframe computer was created to distinguish the traditional, large, institutional computer intended to service multiple users from the smaller, single user machines. These computers are capable of handling and processing very large amounts of data quickly. Mainframe computers are used in large institutions such as government, banks and large corporations. These institutions were early adopters of computer use, long before personal computers were available to individuals. "Mainframe" often refers to computers compatible with the computer architectures established in the 1960s. Thus, the origin of the architecture also affects the classification, not just processing power. The chief difference between a supercomputer and a mainframe is that a supercomputer channels all its power into executing a few programs as fast as possible, whereas a mainframe uses its power to execute many programs concurrently.

Supercomputer: A supercomputer is focused on performing tasks involving intense numerical calculations such as weather forecasting, simulations or complex computations. The distinction between supercomputers and mainframes can be difficult to define at times. Supercomputers tend to focus on floating point performance. Mainframes, while providing a lot of processing power, focus more on data throughput and reliability, availability and serviceability (RAS), and generally perform many data handling operations involving minor computations.

                                                                                  PARAM COMPUTER