is a computer whose original sales
price, size, and capabilities make it useful for individuals, and intended to
be operated directly by an end user, with no intervening computer operator.
Today a PC may be a desktop computer, a laptop computer or a tablet
computer.
Desktop PC:
is a personal computer (PC) in a form intended for regular use at a single
location, as opposed to a mobile laptop. Prior to the wide spread of
microprocessors a computer that could fit on a desk was considered remarkably
small. Today the phrase usually indicates a particular style of computer case.
Desktop computers come in a variety of styles ranging from large vertical tower
cases to small form factor models.
is a small mobile computer,
typically weighing 3-12 pounds (around 1.3 to 5.4 kilograms), although older
laptops may weigh more. Laptops usually run on a single main battery or from an
external AC/DC adapter that charges the battery while also supplying power to
the computer itself. Laptops contain components that are similar to their
desktop counterparts and perform the same functions, but are miniaturized and
optimized for mobile use and efficient power consumption, although typically
less powerful for the same price.
is a Computer system that is
dedicated to or intended for use running server applications, often under heavy
workloads, unattended, for extended time with reliability, performance and
redundancy at its core. Servers can be built from commodity computer components
— particularly for low-load and/or non-critical applications — dedicated,
high-load, mission-critical servers use specialized hardware that is optimized
for the needs of servers. Although servers usually require larger amounts of
higher speed Ram, cpu power and disk space, smaller disk drives may
still be used in a trade-off of capacity vs. reliability.
