2. What is COMPUTER?
is a digital electronic device that
processes data through a series of
commands into information and
storage. It can perform
mathematical and logical
operations, and process large
volumes of data at high speed.
3. A Computer has four basic functions:
Accept data
Processes data
Produce output
Stores data
4. Computer System
refers to a complete working computer. It includes not
only the computer but also any software and
peripheral devices that are necessary to make the
computer function.
System Software
is a catch-all term for the programs that handle the
running of a computer’s hardware.
Operating System Utilities
5. Operating system
a program that conducts the communication between
the various pieces of hardware like the video card,
printer, the mother board, sound card, and the
applications.
Utility program
Perform tasks related to the maintaining of a
computer’s health-hardware or data.
6. Computer Components
System Base Unit/System Unit
External Parts Internal Parts
Monitor Microprocessor
Power switch Cards
Disk Drive Motherboard
Reset Switch Hard Disk
Casing Power Supply
LED (light emitting diode) Fan
P0rts Speaker
RAM (Random Access Memory)
ROM (Read Only Memory)
7. Computer Components
Connectors
Male – with one or more exposed pins
Female – with holes in which the male connector can
be inserted
8. Computer Components
I/O Devices and Ports
Input/Output (I/O) – refers to the communication
between an information processing system (such as
computer and the outside world – a human or another
information processing system.
Port – serves as an interface between the computer
and other computers or peripheral devices. It is a
specialized outlet on a piece of equipment to which a
plug or cables connect.
11. Thoughts to ponder
Excellence is the spirit of compulsion
of competence in whatever job a
person is working. It is a safeguard
against on the job mediocrity. It
results in the worker’s having initiative
and strong personal drive to improve
his skills and levels of competence.
Development Bank of the Philippines