3. Mother Board
The motherboard serves to connect all of the parts of
a computer together. The CPU, memory, hard drives,
optical drives, video card, sound card and other ports
and expansion cards all connect to the motherboard
directly or via cables.
The motherboard can be thought of as the "back
bone" of the computer.
4. Hard Disk
A hard disk drive (HDD; also hard drive, hard disk, or disk
drive) is a device for storing and retrieving digital information,
primarily computer data.
Introduced by IBM in 1956.
Three main manufacturers: Western Digital, Seagate, and
Toshiba
Optical drives retrieve and/or store data on optical discs like
CDs, DVDs, and BDs (Blu-ray discs) which hold much more
information than classic portable media options like the floppy
disk.
Popular Optical Disc Drive Manufacturers: Lite-On
IT, Memorex, NEC
5. Video Card
The video card is an expansion card that allows the computer
to send graphical information to a video display device such as
a monitor or projector.
Popular Video Card Manufacturers: NVIDIA,
Corporation, AMD, Matrix
A sound card (also known as an audio card) is an
internal computer expansion card that facilitates the input
and output of audio signals to and from a computer under
control of computer programs
7. 1. Central Processing Unit
(CPU)
1. CPU or central processing unit is the main processing
unit
2. It determines the performance of the computer
(processor speed)
3. Can be said a BRAIN of computer
4. Currently Pentium Chip (Processor) are most popular
5. The Core 2 Duo is Intel's second generation (hence,
Core 2) processor made for desktops and laptops
designed from the ground up to be fast while not
consuming nearly as much power as previous CPUs.
6. Dual core is simply a generic term referring to any
processor package with two physical CPUs in one
7. Dual core is better because it has 2 processors.
10. A drive bay is a standard-sized area for adding
hardware to a computer. Most drive bays are fixed to
the inside of a case, but some can be removed.
Drive bays are most commonly used to store disk
drives, although they can also be used for front-end
USB ports, I/O bays, card readers, fans, fan
controllers, tool storage, and other uses.
Expansion slots are specific slots on a PC
motherboard that facilitate the placement of
expansion cards.
11. 2.RAM
1. One of most important
part of computer
2. Random Access
Memory RAM stores
information
temporarily
3. More RAM in the
computer more faster
computer works
4. RAM is in the form of a
chip and different
vendors have
developed the RAM of
different capacities
12. 3.BIOS
1. BIOS: Basic
Input/Output system is
a set of instructions in
ROM
2. Used to start most basic
services of computer
system.
3. A built-in software that
determines what a
computer can do
without accessing
13. BIOS(contd.)
It contains all the code required to control the
keyboard, display screen, disk drives, serial
communications, and a number of miscellaneous
functions.
It is typically placed in a ROM chip that comes with
the computer (it is often called a ROM BIOS). This
ensures that the BIOS will always be available and will
not be damaged by disk failures. It also makes it
possible for a computer to boot itself.
Because RAM is faster than ROM, though, many
computer manufacturers design systems so that the
BIOS is copied from ROM to RAM each time the
computer is booted. This is known as shadowing.
14. 4. Cooling system
1. A cooling mechanism
prevent damage to
computer from heat
2. Contains fans and
sinks
3. The CPU, Computer
case, power supply,
some Hard disk,
some adapter cards
need cooling
15. 5. PCI(Peripheral Component
Interconnect) slots
1. Slot is the space provided
on motherboard used to
increase functionality of
computer
2. There are RAM slots, AGP
(accelerated graphics
port)slots and expansion
slots.
17. 1. Keyboard
1. The keyboard is used to type something or
input information to the computer.
2. Connects to the system via cable or wireless
connections
3. There are different designs and models
available
4. An arrangement of letters, numbers, and
special function keys that act as the primary
input device to the computer
18. 2. Mouse
1. Most common input device used to give
instructions to computer
2. Connectivity via cable or wireless media
3. Types: Track Ball, Optical mouse, IR mouse,
Radio wave mouse
4. An input device that allows the user to
manipulate objects on the screen by moving the
device along the surface of a desk.
19. 3. Scanner
1. Scanners allow you to
transfer pictures and
photographs to your
computer
2. Used to scan the
images and pictures
3. Using software you
can convert printed
documents into the
text that you can use
in the word processor
22. Storage devices
Primary storage
1. RAM
Secondary storage
1. HDD
2. Floppy disk
3. Other storage devices
23. 1. Hard Disk Drive
1. Hard Disk Drive
HDD is a mechanism
to run disks
2. HD is a fixed media
storage device
3. Data stored
magnetically
4. Mostly internal but
some are external
24. 2. Floppy
1. Floppy disks stores
data magnetically
2. Disk covered by
means of plastic coat
3. Older storage device
having less storage
capacity
25. 3. Other storage Device
1. Used as external
storage device
2. Works faster than
disks
3. Data stores
electrically and
having USB
27. 1. Monitor
1. Monitor is used to
display the
information on the
screen.
2. Monitors come in
many sizes and
shapes, monochrome
or full colors
3. Today most
computers use
LCD(Liquid Crystal
Display)
28. 2. Speakers
1. Speaker is the audio
output device
2. Used to listen songs
and other audio
media
29. 3. Printer
1. Printer takes the
information from the
PC and transfers it to
the paper of different
sizes
2. There are three basic
types of a printer
such as dot matrix,
inkjet and laser
31. 1. Modem
1. Modem is used for modulation and
demodulation of data
2. convert data analog to digital and
digital to analog
3. Can be internal and external
4. Modems are measured by the speed
which is called baud rate. The typical
baud rate is 56Kb
5. A device that sends and receives data
to and from computers over telephone
lines.
32. 2. Digital Camera
1. Device used to take
digital photographs
2. Images stores on the
memory chip of
camera
3. Used in video
conferencing
33. 3. Sound card
1. A circuit board that gives the computer
the ability to accept audio input, play
sound files, and produce audio output
through speakers or headphones.
2. Sound cards produce the sound like music
and voice
3. The older cards were 8, 16 and then 32 bits
4. Allow output device to produce audio
34. 4. Video card
1. Alternatively referred
to as a graphics card,
video card, video
board, or a video
controller, a video
adapter
2. It allow a display
device such as
a monitor to display
images from the
computer
