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This section of the article “Part 2, ‘I’m going to focus on the classification of the computer. It is much important to know the classification of certain computer system belongs, as this will help to clarify the distinction between the conflict
Classification Computer .:
In this section, we give the classification of computers with the type of data they work, purpose and actual size
Classification Data :.
Digital Computers:
The digital computers convert all input data in binary form; process the data in binary form, but work the information is converted back decimal form. The output of digital computers are usually discrete values. Digital computers are very accurate; examples include desktop calculator, some personal computers and adding machines. Most enterprise applications use digital computers
Analogue Computer .:
analogue computers represent data in a continuous form of physical quantities. Their accuracy depends on the measurements made, and not as accurate as digital computers. These types of computers are used for scientific or engineering purposes. Examples are populated area speedo meters, voltammeters and all such devices
Hybrid Computer .:
Hybrid computers combine the best features analogue and digital computers. Using digitizers, hybrid computers take analog input and output digital value. They are used in a very scientific environment. Hybrid has speed analogue and digital precision computers.
Classification Purpose
With this foundation, there are two main categories described below:
special purpose computers:
These are computers designed to perform specific tasks. They have in-built applications that are stored in the part of main memory called read-only memory (ROM). The contents of this type of memory can be accessed and executed by the computer but can not be changed by the user. Examples are computers designed for use in digital clocks
General Purpose Computers .:
These are computers that are not specifically designed or built for specific jobs. They solve a variety of problems, depending on the application or software loaded into them. Main memory is usually, Random Access Memory (RAM). Examples of this type of computers in business, commercial and scientific environment
Classification actual size :.
Micro Computer, Micro Computer is at the lowest end of the range computer in terms of speed and storage capacity. CPU its microprocessors. The first microprocessors were based on 8-bit microprocessor chip. The most common use of personal computers (PC) in this category. The PC supports a number of input and output devices. Examples of microcomputers IBM PC, PC-AT etc.
Mini Computer: This is design to support more than one user at a time. It generates much storage space and operates at higher speeds. The mini computer is used in multi-user systems where several users can work at the same time. This type of computer is typically used for processing large amounts of data in an organization. They are also used as a server in Local Area Networks (LAN)
Mainframes :. These types of computers are usually 32 bit microprocessor. They operate at very high speeds, have very large storage capacity and can handle the workload of multiple users. They are commonly used in centralized databases. They are also used as control nodes in Wide Area Networks (WAN). Examples include DEC, ICL and IBM 3000 series
Super Computer :. They are the fastest and most expensive machines. They have great processing speed compared to other computers. They also have multi-processing technology. One of the ways that supercomputers are built by interconnecting hundreds of microprocessors. Supercomputers are mainly used for weather forecasting, health, remote sensing, aircraft design and other fields of science and technology. Examples are CRAY YMP, CRAY2, NEC SX-3, CRAY XMP and PARAM from India.
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