Chapter 4 - RAM

Question 1

When data or programs are not being used, where are they stored?

Answer 1

In the HDD or SSD

Question 2

When data or programs are in use, where are they moved?

Answer 2

A copy is sent from mass storage to RAM and runs

Question 3

As CPUs data bus increased, what need also increased? Where did DRAM chip move to?

Answer 3

The need for RAM wide enough to fill the bus. They moved from being directly on the motherboard, to circuit boards called stick/modules that we know today

Question 4

When the CPU needs certain data, it requests it from?

Answer 4

it requests it from system memory (RAM) through the Memory Controller. The process typically works as follows:

CPU Request: The CPU generates a memory address for the data it needs.
Address Bus: The memory address is sent from the CPU to the RAM via the address bus.
Memory Controller: The memory controller (often part of the CPU in modern systems) coordinates the data retrieval. It locates the data in RAM and sends it back to the CPU over the data bus.