200
RAM are SODIMM 200-pin sticks whereas DDR is 200-pin but different pin setup. You will know instantly if you have the wrong stick since they will not fit on the other slot.
This is some specification for RAM modules: DDR3 240-pin DDR 2 240Pin DDR 184 Pin SDRAM 168-pin SODIMM 200-pin DDR2 SODIMM 200-pin DDR,DDR2 and DDR3 have 2 holes SDRAM have 3 holes
DDR
depending on the laptop, it could be DDR, DDR2 or DDR3. But the form factor is all the same. Its all SO-DIMM memory
No DDR2 and DDR are not compatible and so you can not add DDR2 RAM module in a DDR Slot. Electrical specifications like voltage, signal pinout and even mechanical size and shape of modules are different.
No, the slots for DDR2 RAM is different from the DDR RAM. You cannot use DDR RAM with DDR2 slot.
Depending on your motherboard it is most likely because most motherboards can only use one type of ram at a time. So you can only use ddr with more ddr to see more than one stick of ram.
ram doesn't use a cable, but sd and ddr are not compatible
There is two types. There is DDR notebook RAM and there is DDR desktop ram. They can't be used vin each other (notebook RAM can't be used in a desktop) unless (in rare circumstances) you happen to have a notebook ram port on your desktop's motherboard. But no, DDR is a technology. Both desktops and notebooks support this technology because there is notebook DDR and desktop DDR. but notebook DDR can't be put in desktop DDR and vice versa.
no...you can't
ddr ram 3
Five types of computer memory are: Dynamic Random Access Memory (DRAM) Synchronous DRAM (SDRAM) Static RAM (SRAM) Double Data Rate RAM (DDR) Rambus DRAM (RDRAM)