As
the name implies, micro computers are the smallest type of computer developed
for usage in our daily life. Of course micro computers are small they have high
computation speed and large storage ability. The small nature of this computer
types makes it easy to move them about. Various types of micro computers do
exist and include;
Personal
Computer
Personal
computer refers to a small less expensive computer for an individual user.
Personal computers first appeared in the late 1970. one of he first and most
popular personal computer was the Apple II introduced in 1977 by Apple
computer. During the late 1970s and early 1980s new models and competing
operating systems seemed to appear daily. Then in 1981, IBM entered the fray
with it first personal computer known as the IBM PC. The IBM quickly became the
personal computer of choice and most other personal computer manufacturers fell
by the wayside. The major features of personal computers are that they are
single-user systems are based on microprocessors.
Types
of personal computer
Personal
computers can be generally classified by size and chassis/case. The chassis or
case is the metal frame that serves as the structural support for electronic
components. Every computer system requires at least one chassis to house the
circuit boars and wiring. The chassis also contains slots for expansion boards.
There are two favors of chassis designs i.e. desktop model and tower models,
but there are man variations on these two basic types.
Tower Model
This refers to a computer in which the power supply, motherboard and mass storage devices are stacked on top of each other in a cabinet. This is in contrast to desktop models, in which these components are housed in a more compact box. The major advantage of tower models is that there are fewer space constraints, which makes installation of additional storage device easier.Desktop Model
A computer designed to fit comfortably on top of a desk, typically with the monitor sitting on top of the computer. Desktop models are broad and lows on the other hand, tower model computers are narrow and tall. Because of their shape, desktop computers are generally limited to three internal mass storage devices. Desktop models designed to be very small are some times referred to as slim line models.
Notebook
Computer
An
extremely lightweight personal computer. They typically weigh less than 6 ponds
and are small enough to fit easily in a briefcase. The major difference between
a notebook computer and a personal computer is the display screen. Notebook computers use a variety of
techniques, known as flat-panel techniques to produce a light weight and
non-bulky display screen. This type of computer although small it has all the
features of bigger computers i.e. input, processing control, storage and
output.
Laptop
computer also contain all the features of bigger computer although small in
size, i.e. input, processing control, storage and output. They are small,
portable computer small enough that it can sit on your lap.
Sub-notebook
computer
A
portable computer that is slighter and smaller than a full-side note book
computer typically, sub notebook computers have smaller keyboard and screen but
are otherwise equivalent to notebook computers.
Palmtops
This
type of computer has all the feature os laptop and notebook computers. It is
less smaller in sie compare to laptop and notebook computers. As the name
implies it is placed on hand when in use.
PDA
Short for Personal Digital Assistant, a hand held device that combines computing, telephone/fax, and networking features. A typical PDA can function as a cellular phone, fax sender, and personal organizer, unlike portable computer most PDAs are pen-based, using stylus rather than keyboard for input. This means that, they also incorporate handwriting recognition features.Some PDAs can also react to voice input by using voice recognition technologies. The field of PDA was pioneered by Apple computer, which introduced the
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