Computer
The computer is a device that makes our work easy. The computer is a device that helps us to complete our tasks easily and speedily. Computer doesn’t have a brain like human beings. We have to give them instructions on what to do when a particular situation arises. We have to tell them everything from what to expect for data(what type of data), how to process it(how to perform calculations) to where to store the data. We humans understand language that is composed of words which further is composed of letters. But, the computers don’t understand our language nor the words like “hello, good morning, discipline, etc”. They only understand binary language whose vocabulary contains only two letters or states or symbols i.e. 0 and 1, True and False, On and Off. To maintain the state transistors are used.
- Transistors are tiny devices that are used to store 2 values 1 and 0 or on and off.
- If the transistor is on we say that it has a value of 1, and if it is off the value is 0.
For example, a memory chip contains hundreds of millions or even billions of transistors, each of which can be switched on or off individually. As a transistor can store 2 distinct values, we can have millions of different values stored on a memory chip consisting entirely of 0’s and 1s. But how does a transistor get its value? When a very little amount of electric current passes through the transistor it maintains the state of 1 and when there is no electric current then the transistor has the state of 0.
Then how it’s all connected to the computer?
These 0’s and 1’s form the building block of a computer. With the combinations of 0 and 1, we create a whole new language For example, 0 can be written as 0,
1 as 1
2 as 10
3 as 11
4 as 100
5 as 101
a as 01100001
A as 01000001
s as 01110011
U as 01010101
Hello as,
01001000 01100101 01101100 01101100 01101111
Hello World! as,
01001000 01100101 01101100 01101100 01101111
00100000 01010111 01101111 01110010 01101100 01100100 00100001
And so on… So now the question arises how can a human remember this code?
It seems impossible!
Well, we humans can do everything that we desire and this code can be remembered very easily but we don’t have to remember. We just have to use our language and the software (also built by humans) converts our normal letters into binary language.
What is Computer
A computer is an electronic device that can process and store information. It can perform calculations, manipulate data, and execute instructions to accomplish specific tasks. The basic components of a computer include the central processing unit (CPU), memory (RAM), storage (hard drive or solid-state drive), input devices (keyboard, mouse, etc.), output devices (monitor, printer, etc.), and various peripheral devices (such as USB drives or external hard drives).