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Memory

Computer memory … large array of consecutive data cells or bytes
  • 1 byte = 8 bits = 0x00 … 0xFF
  • char … 1 byte    int,float … 4 bytes    double … 8 bytes
    • INT_MAX = 0x7FFFFFFF = 2,147,483,647
      INT_MIN = 0x80000000 ≝ -2,147,483,648

When a variable is declared, the operating system finds a place in memory to store the appropriate number of bytes.

It is convenient to print memory addresses in Hexadecimal notation

[Diagram:Pic/memoryAddresses.png]