Computer Of Classification
Until recently computers were classifieds as microcomputers,
super minicomputers, mainframes, and supercomputers. Technology, however, has
changed and this classification is no more relevant. Today all computers used
microprocessors as their CPU. Thus classification is possible only through
their mode of use. Based on mode of use we can classify computers as Palms,
Laptop PCs, Desktop PCs and Workstations. Based on interconnected computers we
can classify computers we can classify them as distributed computers and
parallel computersWith miniaturization and high-density packing of transistor
on a chip, computers with capabilities nearly that of PCs which can be held in
a palm have emerged. Palm accept handwritten inputs using an electronic pen
which can be used to write on a Palm’s screen (besides a tiny keyboard), have
small disk storage and can be connected to a wireless network. One has to train
the system on the user’s handwriting before it can be used as a mobile phone,
Fax, and e-mail machine. A version of Microsoft operating system called
Windows-CE is available for Palm.An Indian initiative to meet the needs of
rural population of developing countries is called Simputer. Simputer is a
mobile handheld computer with input through icons on a touch sensitive overly
on the LCD display panel. A unique feature of Simputer is the use of free open
source OS called GNU/Linux. The cost of ownership is thus low as there is no
software cost for OS. Another unique feature of Simputer not found in Palm, is
a smart card reader/writer, which increases the functionality of the Simputer
including possibility of personalization of a single Simputer for several
users.
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