If DDR2 and SDRAM are totally different, why do my compu specs list my ram as DDR2 SDRAM?

Question

DDR2 and SDRAM are different right? Maybe Compaq made a mistake or it is saying my motherboard can take both types.
What do you guys think.

Answer 1

Plain SDRAM, DDR SDRAM, and DDR2 SDRAM are all different types of SDRAM, but they are all different from each other and are incompatible with each other.

Answer 2

think of it as a scientific name...

SDRAM is the species, and DDR2 is the family...no they aren't totally different

Answer 3

try this and u will know....

http://www.winaddons.com/cpu-z-1405/