Data Representation

Data Representation

1. Images

2. Basics

   • All data on a computer is stored in binary
   • Units of measurement for computer data:
     • Bit, Byte, Nibble, Kilobyte, Mega/giga/tera byte

3. Binary & Hex

   • Base system
     • The binary system on computer uses combinations of 0s and 1s
   • How to convert 8 bit binary numbers in denary ( and visa versa)
   • Overflow in binary addition
   • Hexadecimal and converting between binary and hex

4. Sound

5. Characters

   • Why number of bits used allows more characters to be stored
   • Two most common encoding schemes
     • Ascii
     • Unicode

Bilder und Dateien der Mindmap