Mainframe
Mainframe:-often referred as big iron, are computers used mainly by large
organizations for critical applications, typically bulk data processing.The term come
originated from the early mainframes, as they were huge, room-sized metal boxes.Later the term was used as high performance commercial machines.First mainframes introduced in 1965 by IBM.(IBM System z10 is the latest incarnation).Otherwise, large systems that are not based on the System/360 but are used for similar tasks are usually referred to as server or even supercomputer. However, "server", "supercomputer" and "mainframe" are not synonymous.
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.
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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 microprocessor. The term "microcomputer" itself, is now practically an anachronism.
organizations for critical applications, typically bulk data processing.The term come
originated from the early mainframes, as they were huge, room-sized metal boxes.Later the term was used as high performance commercial machines.First mainframes introduced in 1965 by IBM.(IBM System z10 is the latest incarnation).Otherwise, large systems that are not based on the System/360 but are used for similar tasks are usually referred to as server or even supercomputer. However, "server", "supercomputer" and "mainframe" are not synonymous.
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.
Microcomputers (Personal Computers)
-Link-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 microprocessor. The term "microcomputer" itself, is now practically an anachronism.
These computers include desktop computers, laptop and notebooks, tablet PC, Palmtop computers, Personal digital assistants (PDA)and programable calculator.
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