Some more Basic

Learn about hardware and how it runs software
A computer is a physical collection of bits that u can touch. The screen , main system box , keyboard ,mouse etc. and inside this there is software ......................
Computer is made up of following parts:
1)CPU
2)ROM that holds permanently stored instructions
3)RAM that holds software and data
4)I/O devices
5)Permanent storage devices eg. Hard disk ,Floopy disk etc
But What exactly is Software?
It is the combination of instructions and data known as MACHINE CODE .
that forms the building blocks of application.
Such as games,word processor,Vlc etc
This machine code lives in the memory of the computer as billions of little on - off switches...............

THE CPU IS THE BRAIN
The heart of the computer is the Cpu plus RAM .The Cpu fetches data from Ram,carries out  operations on data and then stores it back in ram . The cpu also fetch data from permanent storage such as ROM ,hard disk etc.
The data in memory is organised in blocks of 8 switches ,each switches is known as bit and a block is a byte.Each bit can be on or off.
when a bit is on it has the value 1 when its off it has the value 0. this is called binary notation. there are 256 different combinations of 8 bits with the value 0 to 255.................

Table of bit values................................
00000000 -> 0
00000001 -> 1
00000010 -> 2
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11111111 -> 255