Class 3 Week 6 Theory 1

Learning Objective : Students will be able to explain the function of monitor, mouse and keyboard.

Good morning students!!

READ

Hope you remember computer is also called Personal computer and there are four essential parts of computer - 

1. Keyboard 

2. Mouse

3. Monitor

4. System box (CPU)

Let's quickly look at the first three parts today - 

1. Keyboard - It is the typing device of computer. It helps us to type alphabets, numbers and special symbols.

2. Mouse - Mouse is the pointing device of computer. It is used to select or open a program.

In 1964, the first computer mouse was made by Douglas Engelbart.

All devices are connected to CPU with wires, although now a days wireless(cordless) keyboard and mouse are also available.

3. Monitor - It looks like television screen and shows whatever we are doing on the computer. It is also called VDU (Visual Display Unit).

There are two types of monitor available now-a-days  - 

a) LCD Monitor(Liquid Crystal Display)

b) LED Monitor (Light emitting Diode)

These occupy less space than previously used CRT Monitors.

Some monitors are touch screen monitors which allows you to select options by touching the screen. They are commonly used on cell phones, ATM machines, video games or supermarket terminal.

Please Note : No written work today

Revise Chapter - 1 for test on 20th May

Take care and stay safe!!