What is contained in RAM memory?

Answer 1

Basically, anything. RAM stands for Random Access Memory, and it can contain programs, data, an operating system, pictures, videos, you name it. It's the main working area or scratchpad of your computer. It stays there until you turn the power off. This varies from ROM (Read-Only Memory) in that ROM may be read from, but not written to, and the contents remains unchanged. Examples of ROMs are a BIOS chip (allowing booting of a computer), a or video card ROM (containing a small program to make the card work). Once you boot your computer, the BIOS tells the computer where to find the operating system on disk, then it is loaded into the RAM, and execution continues in RAM, and everything starts up. See also: PROMs (Programmable Read-Only Memory), EPROMS (Erasable Programmable Read-Only Memory; uses a UV light to erase and re-program), and EEPROMs (Electrically Erasable Programmable Read-Only Memory; also called non-volatile memory).