Computer Binary - Introduction:
- The computer is made up of memory chips and ultimately these are made up of bits (switches).
- Each bit or switch represent two states, either on / off.
- The bits form patterns that represent our Characters. Each character has a different pattern. Even capital and small letters have different patterns. It is like a code. The keyboard knows these codes and send them to the computer when we press keys.
- 8 bits / 1 byte is enough to hold all our letters and characters and for each character we need 1 byte of memory in the computer
- Write down the following table:
|1 switch || 1 bit |
| 8 bits || 1 byte |
|1024 byt || 1 Kilo Byte |
|1024 Kilo Bytes ||1 Mega Byte |
|1024 Mega Bytes ||1 Giga Byte |
- Work out some calculations like:
- How many bits are there in 5 bytes
- How many kilo bytes are there in a floppy disk of 1.44mb
- How many 20kb documents would be held by a floppy.
- How many 20kb documents would be held by a Cd-Rom
- To know the size or capacity of a file we need to right click on it and click on properties. We know its size then.
- Open the pen drive and see how much there is used space and how much there is left.
- Copy fonts and check whether they will fit in the free floppy disk space or not.
- Continue copying fonts and files until the pen drive is full.
- Check the document size and the fonts size and compare
- Open a new text document, name it and check its properties. It will be 0 Bytes.
- Now open it and write a Letter in it. Save it and check its properties.
- It will read 1 byte.
- Continue and show that the space takes another byte and the enter will take 2 bytes.
- Remember about the enormous capacity held by the hard disk and how much 11 byte text files would fit in the hard disk.