This week, we will cover CPU, RAM, and Firmware. The CPU is like the brain for a computer. The CPU performs calculations and uses the external data bus to move data and commands between the RAM and itself.
RAM comes in several varieties, but the most commonly utilized at this time is DDR4 and DDR5. However, we are starting to see DDR4 phase out. Most of the chips on RAM sticks are made by one of three companies, so variations in memory performance are minimal.
Firmware is the glue that bonds all the hardware together. When a device boots up, firmware ensures all hardware is running correctly by providing inter-component communication the peripherals can send commands from the CPU.
This is the basic breakdown of the week's information. Join me next week for more information.
Sunday, April 5, 2026
Week 3 - CPU-RAM- Firmware
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