The document defines a computer and describes its major components and functions. It discusses input devices like keyboards, mice, microphones, and scanners. It also covers output devices such as headphones, printers, webcams, and speakers. The core processing components are described as the motherboard, chipset, expansion cards, microprocessor, and storage devices. The document outlines different types of computers and computer networks, as well as transmission media like twisted pair, coaxial, and fiber optic cables. Finally, it labels the major parts of a computer including the CPU, motherboard, peripherals, monitor, video card, mouse, and hard drive.

1. The Computer
By : REY PAOLO TOMO

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. Four Functions for the Computer

4.  The keyboard is
the piece of
computer
hardware used
to input text,
characters, and
other commands
into a computer
or similar device.
Keyboard
 A computer mouse
is a handheld
hardware input
device that controls
a cursor in a GUI
and can move and
select text, icons,
Mouse
Input Devices
 A device that
converts
sound waves
into analogous
electrical
waves.
microphone
 a device for
examining,
reading, or
monitoring
something, in
particular.
Scanner

5. OUTPUT DEVICES
 a pair of earphones typically joined by a band placed over the
head, for listening to audio signals such as music or speech.
Headphone
 a machine for printing text or pictures onto paper,
especially one linked to a computer.
Printer
 a video camera that inputs to a computer
connected to the Internet, so that its images
can be viewed by Internet users.
Webcam
 They receive audio input from the computer's
sound card and produce audio output in the
form of sound waves.
Speaker

6. Process devices
 The motherboard
is a printed circuit
board that is the
foundation of a
computer, located
on the back side
or at the bottom
of the computer
chassis.
Motherboard
 a chipset is a set of
electronic components
in an integrated circuit
that manages the data
flow between the
processor, memory and
peripherals.
Chipset
 An expansion
card is used to
give a computer
additional
capabilities, such
as enhanced
video performance
via a graphics
card.
Expansion
card
 A microprocesso
sometimes calle
a logic chip, is
a computer
processor on a
microchip.
Micropr
ocessor

7. Storage devices
 a flexible
removable magnetic
disk, typically
encased in hard
plastic, used for
storing data.
Floppy disk
 a type of memory card.Memory Stick
 a type of
memory card
that has
moving parts
and can store
large amounts
of data
Microdrive
 An optical disc
drive that
reads and
writes all
common CD
and DVD
formats.
CD/DVD drive

8. Types of computer
 SUPERCOMPUTER- A supercomputer is a computer that performs at or
near the currently highest operational rate for computers.
 TOWER- computer case which arranges the internal components vertically.
 DESKTOP-a computer suitable for use at an ordinary desk.
 MINI-TOWER-a small vertical case for a computer, or a computer mounted in such
a case.
 MINI-COMPUTER- minicomputer is a type of computer that possesses most of the
features and capabilities of a large computer but is smaller in physical size.
 MAINFRAME-a large high-speed computer, especially one supporting numerous
workstations or peripherals.
 LAPTOP-a computer that is portable and suitable for use while traveling.
 MICROCOMPUTER-A microcomputer is a small, relatively inexpensive computer
with a microprocessor as its central processing unit (CPU).

9. COMPUTER NETWORK
 A computer network is a set of connected computers.
Computers on a network are called nodes. The
connection between computers can be done via cabling,
most commonly the Ethernet cable, or wirelessly
through radio waves. Connected computers can share
resources, like access to the Internet, printers, file
servers, and others. A network is a multipurpose
connection, which allows a single computer to do more.

10. TRANSMISSION MEDIA
Transmission media is a pathway that carries the
information from sender to receiver. We use
different types of cables or waves to transmit
data. Data is transmitted normally through
electrical or electromagnetic signals.

11. TYPES OF TRANSMISSION MEDIA
 a cable consisting of two wires twisted around
each other, used especially for telephone or
computer applications.
Twisted pair
 is a type of cable that has an inner conductor
surrounded by a tubular insulating layer,
surrounded by a tubular conducting shield.
Coaxial cable
 Fiber optic cable is a high-speed data
transmission medium. It contains tiny glass or
plastic filaments that carry light beams.
Fiber optic cable

12. MAJOR PARTS OF THE
COMPUTER
 CPU -The CPU (Central Processing Unit) is the part of a computer system that is
commonly referred to as the "brains" of a computer.
 Motherboard -A motherboard (sometimes alternatively known as the mainboard,
system board, baseboard, planar board or logic board,[1] or colloquially, a mobo) is the
main printed circuit board (PCB) found in general purpose microcomputers and other
expandable systems.
 Peripherals -A peripheral is "an ancillary device used to put information into and get
information out of the computer".
 Monitor -A computer monitor is an electronic device that shows pictures for
computers. Monitors often look similar to televisions.
 Video Card -A video card connects to the motherboard of a computer system and
generates output images to display.
 Mouse -A computer mouse is an input device that is most often used with a personal
computer.
 Hard Drive -A hard disk drive (HDD), hard disk, hard drive or fixed disk[b] is a data
storage device that uses magnetic storage to store and retrieve digital information
using one or more rigid rapidly rotating disks (platters) coated with magnetic material.

13. COMPUTER PARTS LABELLED
PS/2
Ports
Power
Supply
Serial Port
VGA Video
USB Ports
Audio Jacks
Parallel Port
RJ45 NIC
56k Modem