Data representation in computer pdf

How does a computer show data?
A modern digital computer represents data using the binary numeral system.
Text, numbers, pictures, audio, and nearly any other form of information can be converted into a string of bits, or binary digits, each of which has a value of 0 or 1..
Computers use numeric codes to represent all the information they store.
These codes are similar to those you may have used as a child to encrypt secret notes: let 1 stand for A, 2 stand for B, etc.
With this code, any written message can be represented numerically.
What does e in statistics mean? In statistics, the symbol e is a mathematical constant approximately equal to 2.71828183.
Prism switches to scientific notation when the values are very large or very small.
For example: 2.3e-5, means 2.3 times ten to the minus five power, or 0.000023.

What type of data does a computer use?

Humans use the base 10 number system

Computers use digital data in the form of electrical signals

Digital data is represented as bits

Data values, such as numbers and characters, need more than a single bit

Most PCs store data as 8-bit patterns called bytes

Understand the limitations of a bitmap image