ICS I Computer : Lesson 1 - What is a Computer?

Chapter 1 - Basics of Information Technology

In this first lecture of ICS I Computer, we'll learn about:

• Computer
• Input
• Processing
• Output

What is Computer? || ICS I

An electronic machine??

An electronic machine which is used for calculations??

No. The proper definition will be:

• "Computer is an electronic machine to which we give input, it processes the input, and gives us output in our desired form."
• Old definition was "Computer is a calculating machine". But now a computer can do a lot of tasks besides calculating so we'll not prefer this definition.

So what is input, processing and output?

Input

The commands given to a computer to do tasks. 

For example : If I say to my student Ali to fetch me a glass of water, then that will be input in easy words.

Processing 

The process of understanding input by computer is called processing. A computer can only give us output until or unless it understands the input.

For example : Ali will fetch me a glass of water if and only if he understands my command.

Output

The process of giving result is called output or we can say that the process of giving result after understanding the input is called output.

For example : Ali fetched me a glass of water. It means that he understood my command. Thanks Ali dear :)

So Zemination Students We've Learned

• Input is into the computer.
• Output is out of the computer.
• Processing is the thinking process.

Now the definition of computer makes sense to us.

Download this complete lecture in PDF format.

This is the end of lecture number one of ICS I (ICS Part I) Computer. Bookmark the blog for future posts :) Also share this post. Subscribe to YouTube Channel. Follow me on Facebook.

We are following PTB (Punjab Text Book of Board).

The next lecture : What is Information Technology?