A Computer
consists of a set electromechanical component able to accept some form of
input, process this input in a way that we can specify, and produce some form
of output. Hardware Parts of Computer refers to the all of physicals parts
of computer like circuits, computer chips, graphic
cards, sound cards, memory (RAM), motherboard, displays, power supplies,
cables, keyboards, printers and "mice" input devices.
Here are given Some
Hardware Component
Input devices
The input devices may be
hand-operated or automated. When unprocessed data is sent to the computer with
the help of input devices, the data is processed and sent to output devices. Some
example of input devices is
- Computer keyboard
- Digital camera
- Digital video
- Graphics tablets
- Image scanner
- Joystick
- Microphone
- Mouse
- Overlay Keyboard
- Real-time clock
- Trackball
- Touchscreen
Output Devices
That through Computer
gives output that are called output devices. Here are given some examples
- Computer monitor
- Printer
- PC speaker
- Projector
- Sound Card
- Video Card
Control Unit
CPU or Processors perform
computations. They do math for your calculator application. In shorts, it
manages the computer’s various components, it reads and interprets the program instructions,
transforming them into control signals that activate other parts of the
computer. It is also called a control system or central controller.
Arithmetic Logic Unit (ALU)
The ALU is capable of performing two classes of operations:
arithmetic and logic. The set of arithmetic operations that a particular ALU
supports may be limited to addition and subtraction, or might include multiplication,
division, trigonometry functions such as sine, cosine, etc., and square root.
Memory
A Computer’s memory can be viewed as a list of cells into
which numbers can be placed or read. Memory is what allows a computer to remember
things. Similar to human memory. When Computer is turned off, it forgets
everything in the RAM, so the computers saves everything it knows it will need
later on in the long-term memory.
Computer memory comes in two types:
- Random-access
memory or RAM
- Read-only
memory or ROM
Ram Can be read and written to anytime the CPU commands it,
but ROM is preloaded with data and software that never changes; therefore, the
CPU can only read from it. ROM is typically used to store the computer’s
initial start-up instructions.
Input/
Output (I/O)
I/O
means by which a computer exchanges information with the outside world. The
amount of I/O a computer has can be changed, by adding expansion cards that support
I/O. A graphics card can be added to a computer to let it talk with a display,
or a WIFI card can be added, which will let a computer talk to other computers
without a connecting wire. Hard disk drives, floppy disk drives and optical
disc drives serve as both I/O devices. Computer networking is another form of
Input/ Output
Motherboard
The
motherboard is a computer part of hardware that makes connections in the
right places between all of the other components in a computer. It tells data
where it should go. When the CPU is finished processing some data, it might say
to the CPU, OK, put this in the HDD, and the motherboard will figure out where
the HDD is and send the data there.
Multiprocessing
Some computers are designed to distribute their work across
several CPUs in a multiprocessing configuration, a technique once employed only
in large and powerful machines such as supercomputers, mainframe computers and
servers. Multiprocessor and multi-core personal and laptop computers are now
widely available, and are being increasingly used in lower-end markets as a
result.
