Data are divided into 5 types . They are text data , numerical data , image data , audio data and video data .
Text represents the individual symbols used in many written languages .It is a sequence of symbols used in a natural or artificial language .
Numerical data represents pure numbers , such as measurement and calculation .
Image data are the most used of data .Everything that display in the screen must be converted to image data before displaying .
Audio data are a sequence of sound measurments and it measures the sound ,volume and pitch.
Video data are a sequence of still images recorded many times a second .
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