Also known as main memory, RAM contents are lost when the computer is turned off. The more the better. RAM is no longer as expensive as it once was. We recommend at least 8 megabytes for a basic, low end machine, preferably 16 megabytes. If you can afford a higher end machine, get 32 megabytes or more.
Storage capacity is measured in megabytes.
Again, more is better. It is easy to buy additional drives later on if necessary, and the price and speed continue to improve. Your computer will come with a floppy drive where you insert disks. Almost all floppy drives these days are 3.5 inch, 1.4 Meg drives. Be wary of others unless you know what you need.