What is data representation, Computer Networking

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Q. What is Data Representation?

Information Today arrives in different forms such as numbers, text, images, audio and video.

Text: Represented like a bit pattern a sequence of bits 0s or 1s. Different codes are utilized

- ASCII (7 bits per symbol)

- Extended ASCII (8 bits per symbol)

- Unicode (16 bits - supports different languages)

- ISO (32 bits)

Data Representation (2)

Numbers

- Converted to a binary number to make simpler the mathematical operations

Images

- Symbolized by bit patterns

- Every pixel is assigned a bit pattern

- Black/ White Image 1 bit per pixel

- Gray scale images depends on numeral of levels in gray scale

- Color images: every pixel has 3 bit patterns (RGB)

Audio / Video

- Converted in to Analog and Digital

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