Hardware: Compare and contrast various RAM types and their features

Question 1

What RAM would you use if you needed to increase the number of data wires available from 64 to 128?

Answer 1

Dual Channel

-Single channel architecture has 64 wires

Question 2

What memory component can detect single and multi bit errors?

Answer 2

ECC (Error Correction Code)

Question 3

What memory component can detect single bit errors?

Answer 3

Parity bit

Question 4

Which hardware component usually requires the last amount of time to replace?

Answer 4

Memory

Question 5

What features are important to consider before adding memory modules to a motherboard?

a. level 1 cache
b. cpu type
c. parity
d. access speed

Answer 5

c. parity
d. access speeds

-Adding new memory with different access speed and parity settings can cause intermittent system failures

Question 6

What type of computer memory module uses 168 pins?

Answer 6

DIMM (Dual inline memory module)

Question 7

This type of memory module has 72 or 144 pins

Answer 7

SO-DIMMs

Question 8

Which of the following speeds indicates fastest memory?

a. 8ns
b. 10 ns
c. 7 ns
d. 60 ns

Answer 8

c. 7 ns
- Access time, the amount of time from when memory receives a data request and the time the data becomes available, the smaller the number, the less time it takes to access data in memory

Question 9

Which type of RAM fetches 4 bits of data per clock cycle and uses 1.8 V to operate?

Answer 9

DDR2 SDRAM