Central Processing Unit
Arithmetic/Logic Unit
Control Unit
Cache
Bus
Clock
Registers:
    General-purpose
    Special-purpose:
        Program counter
        Instruction register

Stored program
Machine language
Machine Instruction:
    Op-code
    Operand
Machine cycle:
    Fetch
    Decode
    Execute

Masking


Algorithm
Syntax
Semantics
Pseudocode


Array:
    One dimensional
    Two dimensional
Row-major order
Column-major order