File1, 2, & 3 for apoudyal:



A computer is a machine that can be instructed to carry out
sequences of arithmetic or logical operations automatically
via computer programming. Mordern computers have the ability
to follow generalized sets of operations, called programs.
These programs enable computers to perform an extremely wide
range of tasks. A "complete" computer including the hardware,
the operating system, and peripheral equiment required and
used for "full" operation can be reffered to as computer system.

Computers are used as control systems for a wide variety of
industrial and consumer devices. This includes simple special
purpose device like microwave ovens and remote controls, factory
devices such as robots and computer-aided design, and also
general purpose devices like personal computers and mobile
devices such as smartphones.

Early computers were only conceived as calculating devices. Since
ancient times, simple manual devices like the abacus aided people
in doing calculations. Early in the industrial revolution, some
mechanical devices were built to automate long tedious tasks.


Random-Access Memory also know as RAM is a form of computer memory that can
be read and changed in any order, typically used to store working data and
machine code. A randomly-access memory device allows data items to be read
or written in almost the same amount of time irrespective of the physical
location of data inside the memory. In contrast, with other direct-access
data storage media such as hard disk, cd-rw, dvd-rw and the older magnetic
tapes and drum memore, the time required to read and write data items varies
significantly depending on their physical location on the recording medium,
due to mechanical limitations such as media rotation speed and arm movement.

Ram contains multiplexing and demultiplexing circuitry to connect the data
lines to the addressed storage for reading or writing the entry. Usually more
than one bit of storage is accessed by the same address, and RAM devices often
have multiple data lines and are said to be "8-bit" or "16-bit", etc.

In today's technology, RAM takes the form of integrated circuit chips wich MOS
memory cells. RAM is normally associated with volatile types of memory, where
stored information is lost if power is removed, although non-volatile RAM has
also been developed.


Video Card:
A video card is an expansion card which generates a feed of output to a
display device. Frequently, these are advertised as discrete or dedicated
graphics card, emphasizing tje distinction between these and integrated
graphics. At the core of both is the graphics processing unit, which is
the main part that does the acutal computations, but should not be confused
with the video card as a whole, although "GPU" is often used to refer to
video cards.

As an alternative to the use of video card, video hardware can be integrate
into the motherboard, CPU, or a system-on-chip. Both approaches can be
called integrated graphics. Motherboard-based implementations are sometimes
called "on-board video."

Video cards for desktop computers come in one of two size profiles, which can
allow a graphics card to be added even to small-sized PCs. Some video cards
are not of usual size, and are thus categorized as being low powered. Video
cards profiles are based on height only, with low-profile cards taking us
less than the height of a PCIe slot, some can be low as "half-height."

No lines are longer than 80 characters, TYVM. Other specified properties aren't being scored automatically at this time so this is not necessarily good news...