Transcript Expansion card

Kendriya Vidyalaya Ordnance Factory
Katni ( M.P. )
SOCIAL SCIENCE PROJECT WORK
PRESENTED BY –SONAM KOL
CLASS -
th
8
“B”
SUBMITTED TO
Ms NAHID ANSARI
SUBMITTED BY
SONAM KOL
Computer
Personal computer hardware are
the component devices that are the
building
blocks
of
personal
computers. These are typically
installed into computer case, or
attached to it by a cable or through
a port. In the latter case, they are
also referred to as peripherals.
INDEX
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Monitor
Motherboard
CPU
RAM
Expansion cards
Power supply
Optical disc drive
Hard disk drive
Keyboard
Mouse
Monitor
A monitor or display (also called screen or visual
display
unit)
is
anelectronic
visual
display for computers. The monitor comprises the
display device, circuitry, and an enclosure. The display
device in modern monitors is typically a thin film
transistor liquid crystal display (TFT-LCD) thin panel,
while older monitors use a cathode ray tube (CRT) about
as deep as the screen size.
Computer part
motherboard
 A motherboard (sometimes alternatively known as
the mainboard, system board, planar board or logic
board[1]) is a printed circuit board (PCB) found in many
modern computerswhich holds many of the crucial
components of the system, such as the central processing
unit (CPU) and memory, and provides connectors for other
peripherals.
 Motherboard specifically refers to a PCB with expansion
capability. The term mainboard is applied to devices with a
single board and no additional expansions or capability
Central processing unit
The central processing unit (CPU, occasionally central
processor
unit[1])
is
the
hardware
within
a computer system which carries out the instructions of
a computer program by performing the basic
arithmetical, logical, and input/output operations of the
system. The term has been in use in the computer
industry at least since the early 1960s.[2] The form,
design, and implementation of CPUs have changed over
the course of their history, but their fundamental
operation remains much the same
Random-access memory
Random access memory (RAM) is a form of computer data
storage. A random access device allows stored data to be
accessed in very nearly the same amount of time for any
storage location, so data can be accessed quickly in any
random order. In contrast, other data storage media such
as hard disks, CDs, DVDs and magnetic tape read and write
data only in a predetermined order, consecutively, because of
mechanical design limitations. Therefore the time to access a
given data location varies significantly depending on its physical
location
Expansion card


The expansion card (also expansion board, adapter
card or accessory card) in computingis a printed circuit
board that can be inserted into an expansion slot of
a computer motherboard or backplane to add functionality to
a computer system via the expansion bus.
One edge of the expansion card holds the contacts (the edge
connector) that fit exactly into the slot. They establish the
electrical contact between the electronics (mostly integrated
circuits) on the card and on the motherboard.
Power supply unit (computer)
A power supply unit (PSU) converts mains AC to lowvoltage regulated DC power for the internal components
of a computer. Modern personal computers universally
use a switched-mode power supply. Some power
supplies have a manual selector for input voltage, while
others automatically adapt to the supply voltage
Optical disc drive
In computing, an optical disc drive (ODD) is a disk
drive that uses laser light or electromagnetic waves within or
near the visible light spectrum as part of the process of
reading or writing data to or from optical discs. Some drives
can only read from discs, but recent drives are commonly
both readers and recorders, also called burners or
writers.Compact discs, DVDs, and Blu-ray discs are
common types of optical media which can be read and
recorded by such drives. Optical drive is the generic name;
drives are usually described as "CD" "DVD", or "Blu-ray",
followed by "drive", "writer", etc.
Computer keyboard
In computing, a keyboard is a typewriter-style
device, which uses an arrangement of buttons
or keys, to act as mechanical levers or electronic
switches.
Following
the
decline
ofpunch
cards and paper tape, interaction via teleprinter-style
keyboards became the main input device for
computers
.
Mouse (computing)
. In computing, a mouse is a pointing device that functions by
detecting two-dimensionalmotion relative to its supporting surface.
Physically, a mouse consists of an object held under one of the
user's hands, with one or more buttons.
The mouse sometimes features other elements, such as
"wheels", which allow the user to perform various systemdependent operations, or extra buttons or features that can add
more control or dimensional input. The mouse's motion typically
translates into the motion of a pointer on a display, which allows
for fine control of a graphical user interface.
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