- It responds to a specific set of instructions in a well-defined manner.
- It can execute a prerecorded list of instructions (a program).
- It can quickly store and retrieve large amounts of data.
1 - Supercomputer and Mainframe
- Supercomputer is a broad term for one of the fastest
computers currently available. Supercomputers are very expensive and are
employed for specialized applications that require immense amounts of
mathematical calculations (number crunching). For example, weather
forecasting requires a supercomputer. Other uses of supercomputers
scientific simulations, (animated) graphics, fluid dynamic calculations,
nuclear energy research, electronic design, and analysis of geological
data (e.g. in petrochemical prospecting). Perhaps the best known
supercomputer manufacturer is Cray Research.
- Mainframe was a term originally referring to
the cabinet containing the central processor unit or "main frame" of a
room-filling Stone Age batch machine. After the emergence of smaller
"minicomputer" designs in the early 1970s, the traditional big iron
machines were described as "mainframe computers" and eventually just as
mainframes. Nowadays a Mainframe is a very large and expensive computer
capable of supporting hundreds, or even thousands, of users
simultaneously. 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. In some ways, mainframes are more
powerful than supercomputers because they support more simultaneous
programs. But supercomputers can execute a single program faster than a
mainframe. The distinction between small mainframes and minicomputers is
vague, depending really on how the manufacturer wants to market its
machines.
-super computer and mainframe-
2 - Minicomputer
- It is a midsize computer. In the past decade, the distinction between
large minicomputers and small mainframes has blurred, however, as has
the distinction between small minicomputers and workstations. But in
general, a minicomputer is a multiprocessing system capable of
supporting from up to 200 users simultaneously.
-minicomputer-
3 - Workstation
- It is a type of computer used for engineering applications (CAD/CAM),
desktop publishing, software development, and other types of
applications that require a moderate amount of computing power and
relatively high quality graphics capabilities. Workstations generally
come with a large, high-resolution graphics screen, at large amount of
RAM, built-in network support, and a graphical user interface. Most
workstations also have a mass storage device such as a disk drive, but a
special type of workstation, called a diskless workstation, comes
without a disk drive. The most common operating systems for workstations
are UNIX and Windows NT. Like personal computers, most workstations are
single-user computers. However, workstations are typically linked
together to form a local-area network, although they can also be used as
stand-alone systems.
-workstatiom-
4 - Personal computer
- It can be defined as a small, relatively inexpensive computer designed
for an individual user. In price, personal computers range anywhere from
a few hundred pounds to over five thousand pounds. All are based on the
microprocessor technology that enables manufacturers to put an entire
CPU on one chip. Businesses use personal computers for word processing,
accounting, desktop publishing, and for running spreadsheet and database
management applications. At home, the most popular use for personal
computers is for playing games and recently for surfing the Internet.
- Types Of Personal Computer
THATS ALL I COULD SAY ABOUT TYPES OF COMPUTER..THANK YOU ~
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