1.1.1.4 Pipelining

Question 1

What is Pipelining?

Answer 1

• The simultaneous decoding of several instructions by decoding the next instruction and fetching the one after while the current one is being decoded.

Question 2

What is the Purpose of Pipelining?

Answer 2

• Pipelining is the process of completing the fetch, decode, and execute cycles of three separate instructions simultaneously, holding appropriate data in a buffer in close proximity to the CPU until it’s required.
• While one instruction is being executed, another can be
  decoded and another fetched.
• Pipelining is aimed to reduce the amount of the CPU which is kept idle.
• It is separated into instruction pipelining and arithmetic pipelining.

-Instruction pipelining is separating out the
instruction into fetching, decoding, and executing.

• Arithmetic pipelining is breaking down
  the arithmetic operations and overlapping them as they are performed.