This document defines and describes the basic components of a computer system. It discusses input devices like keyboards, mice, and scanners that provide data to the system. It also covers processing components like the CPU and GPU that manipulate the data, as well as storage devices like RAM, hard drives, and optical drives that hold the data. Finally, it discusses output devices like monitors, printers, and speakers that display processed data to the user.

2. • An electronic device which is capable of receiving information
(data) and it responds to a specific sets of instruction in a well
defined manner.

3. Input Device- used to provide data and control signals to
an information processing system such as a computer or
information appliance.
Processing- transforming data into meaningful by
performing various operations.
Output- display the data once it has been processed.
Storage- storing the result of processing so that they can be
used at a later time.

4. INPUT COMPONENTS
• Input device is a (piece of computer hardware equipment) used to provide data and control
signals to an information processing system such as a computer or information appliance.
Mouse Is a pointing device that detects
two dimensional motion relative
to a surface
Is a device that optically scan
images, printed text and
hand writing, or an object
and converts it to a digital
image.
Scanner
Keyboard Is a type writer device which
uses an arrangement of button
or keys to act as a mechanical
lever or electronic switch.
Microphone Is a transducer that convert
sounds into a electronic signals.

5. • An output device is a piece of hardware that is used to output data that has been
previously entered into a computer or similar processing device.
• Printer Speakers
• .
• Monitor
Is a hardware device that
connects to a computer
to generate sounds.
Is a peripheral which makes a
persistence human readable
presentation of graphics or text on
paper or similar physics media.
Is an output device which displace
the information in pictorial form.
Are a pair of small loudspeakers
drivers that are designed to be
worn on.
Monitor Headphones

6. • A processing device is any device in a computer that handles this intermediate
stage. For example, in the diagram below, the CPU is the processing device.
Central Processing Unit Modem
Motherboard GRAPHICS PROCESSING UNIT-GPU
is the electronic circuitry within a
computer that carries out the
instructions of a computer
program .
Is a network hardware
that modulates one or
more carrier wave
signals.
Is the main printed circuit board
(PCB) found in general purpose
micro computer and other
expendable systems.
Is a specialized electronic
circuit device to rapidly
manipulate and alter memory
to accelerate the creation of
images, in a frame buffer
intended for output to a
display devices.

7. • storage device is a device for recording (storing) information (data).
• Is used in computers to store the data which is one of the core function of
modern computers.
• Universal Serial Bus-USB Floppy disk
Random access memory Optical Disk Drive
Is an industry standard that
defines cables connectors and
communication protocols for
connections, communication, and
power supply between computer
and devices.
Also called a floppy diskette, or
just disk. Is a type of disk storage
composed of thin flexible
magnetic storage medium.
Is a form of computer data storage
which stores frequently used
program instruction.
Uses a laser light to read data
from or write data to an optical
disc.

8. • Super computer MINI COMPUTER
MAIINFRAME COMPUTER Micro Computer
Is a computer with a high level
of computing performance
compared to a general purpose
computer.
Is a class of smaller computes that
develop in the mid 1960 and sold
for much less than mainframe and
mid size computer from IBM and
its direct competitors.
Are computers used
primarily by large
organization for critical
applications.
Is a small, relatively
inexpensive computer with
a microprocessor as its
processing unit.(CPU)

9. • Computer tower Server
laptop Desktop
Also known as a computer chassis
tower, system unit cabinet, base
unit or simply case, it also contains
most of the components of a
computer.
Is a computer program
that provides services to
other computer programs
Is often called a notebook or
notebook computer, is a small
portable personal computer with a
clamshell form a factor, an
alphanumeric keyboard .on the lower
part of the clamshell and a thin LCD
or LED computer screen on the upper
portion, which is opened up to use
the computer.
Is a personal computer designed
for regular use at a single location
on or near a desk or table due to
its size and power requirements .

10. It is constructed from
integrated circuits and needs
to have electrical power in
order to maintain its
information.
Secondary memory is where
programs and data are kept
on a long-term basis.
Processor
Main Memory
Secondary memory
Input Device
used to provide data and
control signals to an
information processing
system such as a
computer or information
appliance.
An output device is any
device used to send data
from a computer to another
device or user.
Output Device
A machine that process
something.

11. is the portion of the motherboard that allows you to connect external devices
such as your monitor, speakers, keyboard, and mouse.
Power supply
PS/2 Ports
USB Ports
RJ45 NIC
Audio jacks
VGA Video
Serial port
Parallel Port

12. a printed circuit board containing the principal components of a
computer or other device, with connectors into which other circuit
boards can be slotted.
Mouse & key board
Power supply CPU fan Plugin
USB
Parallel port
CPU Socket
AGP Slot
PCI Slot
ISA slot
CMOS Battery
IDE Controller
(hard
drive,CDROM)
Memory Slot
Floppy Controller