Week 9 A+ Blog

 One of the things I learned this week was during the video for upgrading your memory in a laptop computer. There are 3 different types of memory boards DDR200, DDR2 and DDR3

DDR200 and DDR2 are both 200 pin boards and DDR3 is a 204 pin board. All 3 boards have subtle differences, but the main one is that none can be plugged into the wrong slot in the laptop because the way each one is inserted is different. This difference was designed intentionally to help prevent accidental repairs with the wrong type memory.