com[puter

1. SCHOOL
TEACHERS
TRAINING ON THE
BASICS OF
COMPUTING

2. COMPUTER SYSTEM AND
ITS COMPOSITION
A COMPUTER SYSTEM is basic, complete and functional hardware and
software setup with everything needed to implement computing performance.
A Computer system is comprised of:
 COMPUTER HARDWARE
 COMPUTER SOFTWARE

3. COMPUTER SOFTWARE
COMPUTER SOFTWARE are instructions that tell a computer what to do.
Software comprises the entire set of programs, procedures, and routines
associated with the operation of a computer system.
There are various types of computer software among them are:
System software
Application Software

4. DIFFERENCE BETWEEN SYSTEM AND
APPLICATION SOFTWARE
System software
used for operating computer hardware
installed on the computer when operating
system is installed
Some examples of system software’s are
compiler, assembler, debugger, driver, etc.
System software can run independently.
Application software
 used by user to perform specific
task
 installed according to user’s
requirements.
 Some examples are a word
processor, web browser, media
player, etc.
 They can’t run without the presence
of system software.

5. COMPUTER HARDWARE
 computer hardware is the physical components that a computer system
requires to function.
 It encompasses everything with a circuit board that operates within a PC or
laptop; including the motherboard, graphics card, CPU (Central Processing
Unit), ventilation fans, webcam, power supply, and so on.
 major categories hardware devices:
 input devices.
 output devices.
 storage devices

6. STORAGE DEVICES
 USB Drive ·
 Solid State Drive ·
 Memory Card ·
 Optical Devices ·
 Floppy Disk ·
 Magnetic Tape.
 Compact Disc

7. INPUT DEVICES
Examples of input devices include
keyboards
mouse
 scanners
 cameras
Joysticks
microphones.

8. OUTPUT
DEVICES
 Examples of output
devices include:
 monitors
 printers,
 speakers,
 Headphones
 projectors,
 GPS devices
 optical mark readers
 braille readers.