The document defines a computer as a programmable electronic device that performs mathematical and logical operations. It details the four primary functions of a computer: input devices, output devices, processing devices, and storage devices, along with examples for each category. Additionally, it provides an overview of different types of computers and their major components.

1. THE COMPUTER
BY: BEVERLY ROMERO

2. DEFINITION
• a programmable electronic device designed to accept data,
perform prescribed mathematical and logical operations at high
speed, and display the results of these operations.

3. FOUR FUNCTIONS OF A COMPUTER

4. Input Device-is any hardware device that sends data to a
computer, allowing you to interact with and control the
computer.
is the piece of computer
hardware used to input text,
characters, and other
commands into a computer
or similar device.
is a pointing device (hand
control) that detects two-
dimensional motion relative
to a surface.
a camera that produces
digital images that can be
stored in a computer,
displayed on a screen and
printed.
is a device that optically
scans images, printed text,
handwriting or an object
and converts it to a digital
image.
Keyboard Mouse
Digital camera Image scanner

5. 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.
is a computer display and
related parts packaged in a
physical unit that is separate
from other parts of the
computer.
is an optical device that
projects an image (or
moving images) onto a
surface, commonly a
projection screen.
are speakers sold for use
with computers, although
usually capable of other
audio uses, e.g. for an
MP3 player.
SpeakerPrinter
Monitor Projector
is an output device that
prints paper documents.

6. Processing Device-is any device in a computer that handles
this intermediate stage.
is the brains of the
computer where most
calculations take place.
Motherboar
d
Central Processing Unit (CPU) Network Card
is an electronic device
that connects a computer
to a computer network,
usually a LAN.
Sound Card
a device that can be slotted
into a computer to allow the
use of audio components
for multimedia
applications.
is the main circuit board
inside a computer that
connects the different
parts of a computer
together.

7. Storage device-is any media which is used to store data.
a rigid nonremovable
magnetic disk with a large
data storage capacity.
Hard Disk
DVDs
a type of compact disc able to
store large amounts of data,
especially high-resolution
audiovisual material.
CDs
is a portable storage medium
that can be used to record,
store and play back audio,
video and other data in
digital form.
is a type of nonvolatile
memory that erases data in
units called blocks.
Flash memory

8. TYPES OF COMPUTER
is a computer with a high
level of computing
performance compared to a
general-purpose computer.
Supercomputer
Mainframe
Minicomputer
is a type of computer that
possesses most of the
features and capabilities of a
large computer but is
smaller in physical size.
Microcomputer
is a small, relatively
inexpensive computer
with a microprocessor as
its central processing unit
(CPU)
are a type of computer that
generally are known for their
large size, amount of storage,
processing power and high
level of reliability.

9. is a special computer
designed for technical
or scientific
applications.
Workstation
Personal Computer
Tower
is a metal chassis that
holds
all of the computer's
components.
Server
is a computer program that
provides services to other
computer programs in the
same or other computers.
is a multi-purpose electronic
computer whose size,
capabilities, and price make it
feasible for individual use.
Personal Computer
a computer designed for
use by one person at a
time.
Laptop
Portable and compact
personal computer with the
same capabilities as a desktop
computer.

10. MAJOR COMPONENTS OF COMPUTER
is a small chip that
resides in
computers and
other electronic
devices.
Main memory
Processor
is the
slowest
and
cheapest
form of
memory.
Secondary memory
Input
Device
is where programs
and data are kept
when the processor
is actively using
them.
is any device used
to send data from
a computer to
another device or
user.
Output Device
is any hardware device that
sends data to a computer,
allowing you to interact
with and control the
computer.

11. P.C BACK PANEL LABELED
Power supply
RJ45 NIC
Audio Jacks
56k Modem
VGA Video
Serial Port
PS/2 Ports
Parallel Port
USB Port

12. MOTHERBOARD LABELED
PCI slots
AGP
CPU socket
CPU Heat
sinks and
mounting
points for
fans
Power connector
DRAM memory slots
Hard drive slots
Northbridge
with heat sinks
ROM
South Bridge
Back up battery