this is all about the computer every single definition

1. BY:CELGIC FRAND S. VIOLA

2. Definition
 an electronic device for storing and processing data, typically in binary
form, according to instructions given to it in a variable program.

3. Functions of a Computer
 1. Data Entry
 2. Data Processing
 3. Information Output
 4. Data and Information Storage

4. Input Devices
 Keyboard - is an input device used to enter characters and functions into the
computer system by pressing buttons, or keys.
 Scanner - is a device that captures images from
photographic prints, posters, magazine pages, and
similar sources for computer editing and display.
 Touchpad - is a device for pointing (controlling input
positioning) on a computer display screen.
 Webcam - is a video camera that feeds or streams its
image in real time to or through a computer to a
computer network.

5. Output Devices
 Printer - is a device that accepts text and graphic
output from a computer and transfers the information
to paper, usually to standard size sheets of paper.
 Speacker - Is a device that converts analog audio
signals into the equivalent air vibrations in order to
make audible sound.
 Projector – is used to project rays of light, especially an
apparatus with a system of lenses for projecting slides
or film onto a screen.
 Headphone - a pair of earphones typically joined by a
band placed over the head, for listening to audio
signals such as music or speech.

6. Process Devices
 CPU - is the brains of the computer where most
calculations take place.
 14.GPU - A programmable logic chip (processor)
specialized for display functions.
 Motherboard - a printed circuit board containing the
principal components of a computer or other device,
with connectors into which other circuit boards can be
slotted.
 Network card - It is an expansion card that enables a
computer to connect to a network; such as a home
network, or the Internet using an Ethernet cable with an
RJ-45 connector.

7. Storage Devices
 Hard disk - a rigid nonremovable magnetic disk with a
large data storage capacity.
 DVD - a type of compact disc able to store large
amounts of data, especially high-resolution audiovisual
material.
 CDs - is a digital optical disc data storage format
released in 1982 and co-developed by Philips and Sony.
 Magnetic tape – is used in recording sound, pictures,
or computer data.

8.  Super computer - Is a particularly powerful mainframe computer.
 Tower - is the enclosure that contains most of the
components of a computer (usually excluding the
display, keyboard and mouse).
 Desktop – is the working area of a computer screen
regarded as a representation of a notional desktop
and containing icons representing items such as files
and a wastebasket.
 Minitower - Is a small vertical case for a computer, or
a computer mounted in such a case.

9.  Mainframe - Is a large high-speed computer,
especially one supporting numerous workstations or
peripherals.
 Laptop - Is a computer that is portable and suitable
for use while traveling.
 Microcomputer - Is a small computer that contains a
microprocessor as its central processor.

10. A computer network is a set of computers connected together for the
purpose of sharing resources. The most common resource shared today is
connection to the Internet. Other shared resources can include a printer or a
file server.

11. Transmission medium is a material substance (solid, liquid, gas, or plasma)
that can propagate energy waves. For example, the transmission medium for
sounds is usually air, but solids and liquids may also act as transmission
media for sound. ... Thus, an optical fiber or a copper cable is a transmission
medium.

12. The means through which data is
transformed from one place to
another is called transmission or
communication media. There are
two categories of transmission
media used in computer
communications.
BOUNDED/GUIDED MEDIA.

13.  LAN - Local Area Network.
 WAN - Wide Area Network.
 WLAN - Wireless Local Area Network.
 MAN - Metropolitan Area Network.
 SAN - Storage Area Network, System Area Network, Server
Area Network, or sometimes Small Area Network.

14.  Motherboard - a printed circuit board containing the
principal components of a computer or other device,
with connectors into which other circuit boards can be
slotted.
 CPU - is the brains of the computer where most
calculations take place.
 Peripheral - is on the margin, or outside, while main
things, like a computer's processor, are not peripheral.
 Hardrive - a high-capacity, self-contained storage
device containing a read-write mechanism plus one or
more hard disks, inside a sealed unit. Also called hard
disk drive.

15.  Monitor - an instrument or device used
for observing, checking, or keeping a
continuous record of a process or
quantity.
 Video card - is a piece of computer hardware that's
rectangular in shape with numerous contacts on the
bottom of the card and one or more ports on the side
for connection to video displays and other devices.
 Mouse - is an input device that is most often used
with a personal computer. Moving a mouse along a
flat surface can move the on-screen cursor to different
items on the screen.

16. VGA Video
PS/2 Port
Power
Supply
Parallel
Port
RJ45 NIC
USB Port
Audio Jacks
56K Modem