A desktop computer is an electronic machine computer which
convert raw data into meaningful information, made for use on a desk in an
office or home and is distinguished from portable computers such as laptops or
PDAs.
A laptop computer,(also notebook computer),
is a small mobile computer, which usually weighs 2-18 pounds (16 kilograms),
depending on size, materials, and other factors. A laptop computer is much
smaller than a desktop.
Personal Digital Assistant(PDA) are handheld computers, but
have become much more versatile over the years. PDAs are also known as pocket
computers or palmtop computers.
Palmtop Computers a small and lightweight portable computer,
with most of the features of a standard notebook computer but smaller.
Server usually refer to a computer that is dedicated to the
task of storing and retrieving large amounts of data. For example, a large
computer dedicated to a database may be called a "database server". "File
servers" manage a large collection of computer files. "Web servers" process web
pages and web applications.
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