Welcome great EduPodian, here is your Second Term JSS1 Computer Science Lesson Note excerpt.
Scheme of Work
1. Introduction to Computer Monitor
2. The System Unit
3. Computer Ethics
4. Word processing I
5. Word processingII
6. Data processing I
7. Data Processing II
8. Features of a Computer
9. The keyboard and its sections I
10. The Keyboard and its Sections II
11. Revision
12.Examination
REFERENCE
A Handbook on Computer Studies (Practical Guide for Schools and Colleges By: NiyiAdekolegan, Computer Studies Stella Chiemeke, Modern computer studies by Victoria Dinehin.
Week 1:
TOPIC: COMPUTER AND MONITOR
REF. BOOK: Welcome to Computer Studies. By BoyeJokotoye
CONTENT:
THE MONITOR
The monitor is an output device used to display information. The monitor is also called Visual Display Unit (VDU). It is similar to ordinary television screen. The output on a monitor is called softcopy. This output is available to the user only for as long as another output has not replaced it. Thus, the output in the monitor is temporary.
A monitor is one of the most common output devices which is used to display information (either data or result) on the screen.
TYPES OF MONITOR
There are two types of monitors.
1. Monochrome monitor.
2. Coloured Monitor.
MONOCHROME MONITOR
Monochrome monitors are very similar to black and white television sets. They display their output in just one colour. Monochrome monitors are of two types, Monochrome Text Monitor which can only display text and number character in single colour and Monochrome Graphics Monitor which can display texts as well as graphics such as charts, maps, diagrams and other pictures all in one colour.
COLOURED MONITOR
Coloured monitor can display text and pictures in more than one colour. Different types of… Click here to order the complete Computer Science Lesson Note for JSS1 second term
Week 2:
TOPIC: THE SYSTEM UNIT
REF. BOOK: Early Learning of Computer Studies for Junior Secondary Schools.
By: YomiSoyombo
CONTENT:
THE SYSTEM UNIT
A System unit also known as a base unit, is electronic circuitry housed within the computer cabinet. It is the part of the micro computer that contains the Central Processing Unit (CPU).
THE INTERNAL FEATURES OF THE SYSTEM UNIT
Is the main body of a personal computer, typically consisting of a plastic/metal enclosure containing thefollowing:
i. Motherboard,
ii. power supply,
iii. cooling fans,
iv. internal disk drives,
v. the memory modules and
vi. expansion cards that are plugged into the motherboard such as video and network cards.
CENTRAL PROCESSING UNIT
The CPU is a processing device found inside the system unit. It is mounted on the motherboard which is also inside the system unit. The function of a CPU is to perform the processing of data received from the input devices. The major components of the CPU are as follows:
1. Arithmetic and Logic Unit (ALU)
2. Control Unit
3. Memory Unit
The system units of micro computers are of different shapes. These include the following:
(i) Notebook
(ii) Palmtop
(iii) Desktop
(iv) Tower
(v) Slim line etc.
NOTEBOOK
This is a micro computer that is… Click here to order the complete second term Computer Science Lesson Note for JSS1
Week 3:
TOPIC: COMPUTER ETHICS
Introduction
Computers functions best when used in the right environment. The right environment can be refers to as the computer room/laboratory. Computer room is a room specially created for keeping computers and other peripheral devices.
COMPUTER ROOM REQUIREMENT
• Computer system
• Furniture
• Tiles
• Electricity source
• Stabilizer
• Air conditioners/fans
• Mouse and mouse pad
• Uninterruptible Power Supply(UPS).
• Printer
• Speaker
• Window Blind
• Fire extinguisher
• Surge protector
• Dusk cover
• Printer paper
WAYS OF MAINTAINING THE COMPUTER ROOM
1. A dust-free environment should be maintained in the computer room
2. The computer room should be… Click here to order the complete Lesson Note on Computer Science JSS1 second term
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