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Section 11.2 Storage Devices
Checkpoint 11.2.1. Storage Technologies.
For each of the following storage types, indicate whether it typically uses SRAM or DRAM.
(a)
CPU Caches:
SRAM
Correct!
DRAM
Incorrect.
(b)
Main Memory:
SRAM
Incorrect
DRAM
Correct!
(c)
Registers:
SRAM
Correct!
DRAM
Incorrect.
Checkpoint 11.2.2. CPU Cache Memory.
Which of the following is true about a CPU cache? Select ALL that apply.
It is faster to access than registers.
- Incorrect
It is generally composed of multiple layers.
- Correct
It is explicitly controlled by the programmer.
- Incorrect
It is part of primary storage.
- Correct
It is accessed via the memory bus.
- Incorrect
Checkpoint 11.2.3. I/O Controller.
Accessing which of the following requires going through the I/O controller?
Hard Disk Drives (HDDs)
Correct!
Solid State Drives (SSDs)
Correct!
Main Memory
Incorrect.
CPU Cache
Incorrect.
Checkpoint 11.2.4. Random Access Memory.
Which of the following statements about RAM are true?
RAM stores data for a long time (typically years).
Incorrect.
Data stored in RAM will remain after power is turned off.
Incorrect.
RAM means addresses can be accessed in any order.
Correct!
Traditionally, RAM stores read-only data.
Incorrect.
The term RAM is commonly used to refer to the main memory of a computer.
Correct!
