Lesson plan .
School: Njia boys High school
Subject: Computer Studies
Class: Form 1 W No. of Students: 48
Topic: Computer System
Sub-Topic:
Hardware – (Input devices)
OBJECTIVES:
By the end of the lesson the learner should be
able to ;
1.Define computer system
2.Identify most of the hardware resources
3.State and explain the hardware components
of a computer system.
Time
Content
Learning activities
Resources
5 min
•Introduction and
greetings
•Recap of previous
lesson.
•Overview of the
Topic
The learners will
answer questions.
•White board and
white board marker
30 min
Development of the
topic
Definition
Demonstration of
H/w using a
diagram
•Learners ask and
•Computer system
answer questions.
•PowerPoint
•Learners watch the presentation
demonstration and
make personal
notes.
5 min
Conclusion
Teacher give
questions to
ascertain the
understanding.
Learners to answer
questions and do
COMPUTER SYSTEM
Def:
A collection of entities which collectively
work together to achieve a stated goal.
Computer system consist of the following
entities;
•Hardware
•Software
•Live ware
HARDWARE
These are the physical or tangible components of a computer
system.
Hardware comprises all of the physical part of the computer such
as Monitor, CPU, motherboard, ram, CD-Rom, printer, scanner,
hard disk, flash drive (AKA pen drive), processor, pci buses, floppy
disk, power supply, VGA card, sound card, network interface card,
peripherals, joystick, mouse, keyboard, foot pedal, computer fan,
camera, headset and others
They are classified into ;
•Input devices
•CPU
•Output devices
•Storage devoces
HARDWARE COMPONENTS.
Size:
453 × 308
Type:
39KB GIF
INPUT DEVICES
These convert user input in machine readable
form.
They are classified according to methods
used, such as
•Keying
•Pointing
•Scanning
•Direct data capture
KEYING DEVICES
A keyboard is a set of buttons that send coded
signals to a computer, printer, or communications
channel. Each button, or key, corresponds to one or
more letters, numbers, symbols, or special
commands.
When you press a key, the keyboard sends a code to
the computer's CPU that corresponds to the
character printed on the key. When the CPU receives
the signal, it accepts it either as part of a command
or as text input and later appears on your monitor
screen.
Keyboard keys.
Functional keys
Cursor movement
keys
Alphanumeric
keys
Numeric key
pad
Special keys
Pointing Devices
Computer uses a mouse or other pointing
device to follow the movement of your hand,
and convert that motion into instructions
A mouse has two buttons, namely
1. Right hand button
2. Left hand button
A scrolling button is at the middle
Learners activity
A mouse Buttons
Right hand button
Left hand
button
Scrolling button
Interface cable
Learners activity: Students to identify Different keys from a
keyboard
B
C
A
D
E