1. Computer memory is a component of a computer system that is used to store data and programs temporarily or permanently. It allows the computer to store and access information quickly for processing.
2. A small part of memory is called a "byte." It is the basic unit of measurement in computer memory and consists of 8 bits.
3. The major types of computer memory are:
a. Random Access Memory (RAM): It is a type of computer memory that allows data to be stored and retrieved by the computer processor quickly. RAM is volatile, meaning it loses its data when the power is turned off.
b. Read-Only Memory (ROM): It is a type of computer memory that stores data that cannot be easily modified or overwritten. ROM retains its data even when the power is turned off.
4. Differences between RAM and ROM:
- RAM is volatile, meaning it loses its data when the power is turned off, while ROM retains its data.
- RAM is used for temporary storage of data and program instructions that are actively being used by the computer, whereas ROM stores firmware and bootstrap code that are required to start the computer.
5. RAM is called volatile memory of a computer because it loses its stored information when the power is turned off. This characteristic of RAM allows it to operate at high speeds but requires constant power supply to retain data. When the computer is shut down or restarted, the contents of RAM are erased, distinguishing it from non-volatile memory like ROM, which retains data even without power.
