Memory in a computer refers to the hardware components that store data temporarily or permanently for use by the processor and other system components. It allows the computer to access and use information quickly.
There are two main types of computer memory:
1. Primary Memory (Main Memory)
- Volatile (data is lost when power is off)
- Fast access
- Used by the CPU to run programs and processes.
Examples:
- RAM (Random Access Memory): Temporarily holds data and programs being used.
- Cache Memory: Very fast memory close to the CPU, stores frequently used data.
2. Secondary Memory (Storage)
- Non-volatile (data stays even when power is off)
- Slower than primary memory
- Used for long-term storage.
Examples:
- Hard Drive (HDD)
- Solid-State Drive (SSD)
- USB Flash Drives
- Optical Discs (CD/DVD)
Summary:
Computer memory is essential for storing data and instructions. Primary memory is fast and temporary, while secondary memory is slower but permanent.
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