Showing posts with label Hardware. Show all posts
Showing posts with label Hardware. Show all posts

Tuesday, February 15, 2011

Parts of the computer

PARTS OF THE COMPUTER



Random access memory(RAM): it takes the form of integrated circuits that allow stored data to be
accessed in
any order

Read only memory(ROM): it is mainly used to distribute firmware (software that is
very closely tied to specific hardware, and unlikely to need frequent
updates).

Central processing unit (CPU): is the portion of a computer system that carries out
the instructions of a computer program, and is the primary element carrying out the
computer's functions.

Mother board: in personal computers, a motherboard is the central printed circuit
board (PCB) in many modern computers and holds many of the crucial components
of the system, while providing connectors for other peripherals.

Key Board: which uses an arrangement of buttons or keys, to act as mechanical
levers or electronic switches.

Mouse: a *mouse *is a pointing device that functions by detecting two-
dimensional motion relative to its supporting surface.

Display Monitor: monitor or display (sometimes called a visual display unit) is
an electronic visual display for computers. The monitor comprises the display
device, circuitry, and an enclosure.

Disk Drive: A hard disk drive
 (HDD) is a non-volatile, random access device for
digital data. It features rotating rigid platters on a motor-driven spindle within a
protective enclosure. Data is magnetically read from and written to the platter
by read/write heads that float on a film of air above the platters


 Printer: In computing, a printer is a peripheral which produces a text and/or graphics
of documents stored in electronic form, usually on physical print media such as paper
or transparencies.


Digital Camera: A digital camera (or digicam) is a camera that takes video or
still photographs, or both, digitally by recording images via an electronic image
sensor.


Scanner: In computing, an image scanner—often abbreviated to just scanner— is a
device that optically scans images, printed text,handwriting, or an object, and
converts it to a digital image.


Modem: A modem (modulator-demodulator) is a device that modulates an analog
carrier signal to encode digital information, and also demodulates such a carrier
signal to decode the transmitted information.


WiFi: Wi-Fi: (pronounced /ˈwaɪfaɪ/) is a trademark of the Wi-Fi Alliance. A Wi-Fi
enabled device such as a personal computer, video game console, smartphone
or digital audio player can connect to the Internet when within range of a wireless
network connected to the Internet.

HARRY LEWIS