A computer system is made up of a computer hardware, software and the people ware, who interact with the computer hardware and software.

1. THE COMPUTER
SYSTEM

2. Lesson Objectives
 Know about the components of a computer system.
 Know about the terms hardware, software, people-ware (computer professionals,
computer users).
 Have a working knowledge of hardware components: definition of hardware
components, input devices, output devices, storage devices, arithmetic and logic
units, control unit.
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3. Components
of a computer
system
A computer system is made up of computer
HARDWARE, SOFTWARE, which runs on the
computer, and the PEOPLE-WARE who
interact with the computer hardware and
software.
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4. Hardware
is the physical computer and its peripherals.

5. SOFTWARE
Computer software is a set of
instructions and directions,
written in a special code, that
tells a computer what to do or
how to perform a particular task.
Ex. Power point, Video games,
Antiviruses, Zoom, Instagram etc.
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6. People-ware
(computer
professionals
and users)
System analyst
Programmer
Technician
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People-ware refers to the role people play in
computer technology, including the
development of hardware or software.
Data Capturer
Computer users

7. HARDWARE components
Motherboard
Central
Processing Unit
(CPU)
Random Access
Memory (RAM)
Power Supply
Video Card
Hard Drive
(HDD)
Solid-State Drive (SSD) Optical Drive (DVD/CD drive)
Card Reader
(SD/SDHC, CF)

8. INPUT OUTPUT
Monitor
Keyboard
Mouse
Printer
Speaker
Bar Code Reader
Plotter
Joystick
STORAGE DEVICES HDD, SSD, RAM, ROM, Flash drive, CD, DVD

9. Arithmetic and Logic Units (ALU)
is a digital circuit used to perform arithmetic and logic
operations.
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Control Unit (CU)
is an integrated circuit in a processor that controls the input
and output. It receives instructions from a program, then
passes them to the ALU.

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11. Classwork
Activity 34.1
Question #1 - c
Group 1
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Activity 34.1
Question #2
Group 2

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ANSWER
Activity 34.1
Question #1 – c
A – system unit – processing component
B – monitor – output device
C – keyboard – input device
D – mouse – input device
E – wi-fi router – input/output device
F – printer – output device

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ANSWER
Activity 34.1
Question #2
A – hard drive – hardware
B – keyboard – hardware
C – Word processing programme – software
D – Data – Software
E – computer programmer – people-ware
F – mouse – hardware
E – data capturer – people-ware

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ASSIGNMENT
State the
components of a
computer system