Thursday, 19 August 2010

ASCII Code and FPR!

ASCII stands for?

American Standard Code for Information Interchange


How many bit code is it?


7, extended ASCII uses 8

How many characters can it represent?

128

What is the Character Set?

All the characters that can be represented (text, numbers, punctuation, includes control characters)

What are the control Characters?

Space, Tab, Enter ... Non Printable Characters that change the format of display

Floating Point Representation is used to represent Real Numbers.

How do Computers use Floating Point to represent Real Numbers?


By using a MANTISSA and an EXPONENT - Mantissa represents the actual number. Exponent tells us how many places to move or "float" the decimal point!

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