CompTIA A+ Depot Technician Quiz #9

[ramesh]

How many pins are on a Dual Data Rate Synchronous Dynamic Random Access Memory Dual In-line Memory Module (DDR SDRAM DIMM)? Choose the best option(s) from those listed below.

a) 72 pins
b) 144 pins
c) 168 pins
d) 184 pins

[ramesh]

DDR SDRAM has 184 pins. It replaced the 168 pin SDRAM as the primary memory used in computers. As of now, 240 pin DDR2 SDRAM memory is starting to replace DDR SDRAM as the primary memory used. As there are several different types of memory available on the market, you should always check your motherboard documentation to ensure you are acquiring the appropriate RAM for your system. The different RAM types are not interchangeable.

Correct Option(s):

d) 184 pins

Incorrect Option(s):

a) 72 pins - This would be the number of pins used on a 72 pin Single In-line Memory Module (SIMM) such as those used on older systems. SDRAM modules led to the replacement of 72 pin SIMMs.
b) 144 pins - This would be the number of pins used on a Small Outline DIMM (SO-DIMM) that would be used in a laptop.
c) 168 pins - This would be the number of pins used on SDRAM that was used on older computers. The 168 pin SDRAM were replaced by 184 pin DDR memory modules.