Chap 3

Question 1

Clock speed?

Answer 1

The number of clock cycles carried out per second

Question 2

Pros and Cons of SSD?

Answer 2

Pros
•No moving parts(Less power consumption)[Battery lasts longer]
•Robust; less likely to lose data
•Fastest access time (All data is access at the same time)
•Small and compact (Use in portable device)

Cons
•More expensive per unit of storage
•Shorter lifespan (Limited write-cycle)

Question 3

Why does devices use ROM?

Answer 3

It stores instructions that doesn’t need to be changed.
ROM is non volatile.

Question 4

RAM & ROM characteristics

Answer 4

RAM:
•Volatile/loses data when power is lost/Temporary data
•Upgradable
•Can be read from and written to
•••

ROM:
•Non Volatile/Permanent data/Doesn’t lose
•Can’t upgrade
•Stores bootup instructions (firmware)
•••

Question 5

Benefits of upgrading RAM?

Answer 5

-More programs can be run without lag/delay(Multitask)

-Games/graphics/video/steaming need lots of RAM otherwise will get poor quality images/buffering

-Laptop run faster because more data is stored in RAM(Faster access than HDD)