• Binary System
• Binary Coding Schemes
• Capacity Measurement
• Use of Parity Bit

Binary System

Binary Coding Schemes

Three Coding Schemes:

• American Standard Code for Information Interchange (ASCII)
• Extended Binary Coded Decimal Interchanged Code (EBCDIC)
• Unicode
  
• Example: The word HERO is represented in ASCII as:
  
  

Capacity Measurement

• Bit:  stands for binary digit, is the smallest unit of measurement.
• Byte: eight bits are grouped together to form a character or a byte.
• Kilobyte: equal to 1024 bytes (about a thousand)
• Megabyte: equal to 1,048,576 bytes (about a million)
• Gigabyte: equal to 1,073,741,824 bytes (about a billion)
• Terabytes: equal to 1,009,511,627,776 bytes (about a trillion)

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