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Tablet: A tablet is a compact, portable computer that is smaller
than a laptop and uses a touchscreen for input instead of a mouse.
It has a rechargeable battery and typically offers fewer features
than a laptop. Tablets are often used by professionals and are
handy for work on the go.
Minicomputer
A minicomputer, or "mini," is a powerful and costly computer
compared to a microcomputer. It can contain one or more
microprocessors and is used mainly for scientific and engineering
tasks. Minicomputers can support multiple users at once and are
often referred to as small or mid-size servers. For example, PDP-11,
PDP-8, HP-3000 etc.
Boost Bits
A server is also a computer that provides data and other services to other computers. It is
used in offices where many computers are connected to each other.
Mainframe Computers
Mainframe computers are very huge, fast, powerful
and more expensive than minicomputers. They
often have multiple microprocessors and can be
so large that they occupy an entire room. These
computers are used in large organisations that
handle vast amounts of data, like banks. For
example, IBM zSeries, IBM 4381, ICL 39, etc.
Supercomputers
Supercomputers are the largest and fastest type
of computers. Some are so big that they occupy
an entire floor of a building and are extremely
costly. They can handle massive amounts of data
at high speeds. Supercomputers are used by large
organisations and government agencies for complex
tasks like weather forecasting and rocket launches.
India's first supercomputer is PARAM 8000. Other
examples include China’s Tianhe-2, Japan’s Fugaku, and IBM’s Summit and Frontier, which
are crucial for advancing fields such as artificial intelligence, big data analytics, and scientific
research.
Categories of Computers and Computer Languages 9

