Computer memory
Memory is a part of a computer that provides accumulation, storage and reproduction of information presented in digital code.
Memory allows a computer to store programs and data when they are in use and retrieve them when needed. Without memory, a computer would not be able to perform any useful work.
There are two main types of memory in computers - random access memory (RAM) and long-term memory. RAM is used to store data and programs when they are in active use. RAM is fast, but temporary - the data is erased when the power is turned off. Long-term memory (hard drives, flash memory) is used for permanent storage of programs and data.
Memory management is one of the main functions of the operating system. The operating system is responsible for allocating memory to programs when requested and releasing memory when programs exit. Efficient use of memory is critical to computer performance.
Computer memory
Computer memory is a part of a computer that provides accumulation, storage and reproduction of information presented in digital code.
Computer memory can be divided into two main types:
- Random access memory (RAM) - used to store data and programs that the computer is currently working with. RAM provides high speed of writing and reading information. But data in RAM is stored only while the computer is running; when turned off, the information is erased.
- Long-term memory - used for permanent storage of data and programs. Long-term memory includes hard drives, SSD drives, and flash memory. The information on them is retained even after the computer is turned off.
Thus, RAM and long-term memory perform different but complementary functions of storing data in a computer. The computer's information processing capabilities depend on their volume and speed.