What is read only memory?

Random access memory (RAM) is memory that can be written to easily (which usually means by the device where the memory's installed). "Random access" means any part of the memory can be got at immediately.

RAM needs to be supplied with power to keep what's in it. ROM (Read Only Memory) doesn't, but writing to it is more difficult - you usually need a separate writer.

Random access memory is more commonly said as RAM. Random access memory or RAM is what some of the speed of your pc or laptop comes from. RAM Looks like a long chip that goes inside your computer and it comes in gigabytes and most computer have 2 RAM slots so E.G. my laptop has got 4gbs of RAM. it has to 2gb sticks. there are about 10different RAM stick ones with 200 pins, 204pins, 240pin etc.