In a computer system, a running program stores currently required data in RAM. What does RAM stand for?
- AOption (a)
Random Active Memory
- BOption (b)
Read Action Memory
- COption (c)
Random Access Memory
- DOption (d)
Random Access Mode
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Correct answer
Random Access Memory
Why this answer is correct
The correct answer is Random Access Memory.
Key Points
- RAM stands for Random Access Memory, which serves as the primary memory or main memory of a computer system.
- It is called Random Access because any memory cell or storage location can be accessed directly by the CPU in the same amount of time, regardless of its physical position, unlike sequential access devices like magnetic tapes.
- The RAM stores the operating system, application programs, and data currently in use so that they can be quickly reached by the processor.
- It is volatile memory, meaning that all the information stored in RAM is lost as soon as the power supply is switched off or the system is rebooted.
- RAM is a Read/Write memory, which allows the computer to both read existing data and write new data into it at extremely high speeds.
Additional Information
- Types of RAM:
- SRAM (Static Random Access Memory): It uses transistors to store data and does not need to be refreshed periodically. It is faster and more expensive than DRAM and is primarily used as Cache Memory.
- DRAM (Dynamic Random Access Memory): It stores data using capacitors and transistors. Since capacitors leak charge, DRAM must be refreshed thousands of times per second. It is used as the main system memory.
- SDRAM (Synchronous DRAM): This type synchronizes its speed with the system clock, allowing the CPU to process instructions more efficiently.
- Comparison with ROM:
- Unlike RAM, ROM (Read Only Memory) is non-volatile, meaning it retains its data even after power is lost. It typically contains the BIOS (Basic Input/Output System) necessary for the computer to start up.
- Capacity and Speed:
- Modern RAM capacity is measured in Gigabytes (GB), and its speed is often measured in Megahertz (MHz) or Megatransfers per second (MT/s). Higher capacity and speed allow for better multitasking performance.