| A | B |
|---|
| Ram | is storedon the system board |
| Simm | a memory module where the RAM is stored |
| expanded memory | memory outsde of the convention 640k |
| conventional memory | memory addresses between 0 and 640k |
| upper memory | is between 640k and 1mb and is used to load real mode device drivers and the system BIOS |
| extended memory | is all memory above 1024k |
| dot pitch | is the distance between dots of color on a monitor screen and is measured in millimeters |
| pixel | a group of dots and is smallest adressable spot on the screen |
