Take out a piece of paper What are the parts of a CPU? What are the parts of a core? What do the parts of the CPU do? What do the parts of the core do? What are the three primary storage components?

The Triplets – ROM & RAM & Cache Primary Storage The Triplets – ROM & RAM & Cache

Intro History Travel Cache ROM RAM

History SIMM DIMM Single In-Line Memory Module 30-pin 72-pin DIMM Dual In-Line Memory Module 72-pin to 288-pin DDR – DDR4

Cache On CPU Different from registers FAST!!!! Expensive Limited space Between 5% and 100% of CPU speed Expensive Limited space Different from registers Not connected to CU or A/LU

ROM Boot Constant instructions

RAM Main memory Slower than cache Cheaper than cache Easy to expand Approx 1% of CPU speed Cheaper than cache Easy to expand CPU can change Addressed

Capacities: DDR3 – 8GB X 4 = 32 GB DDR4 – 16GB X 8 = 128 GB