Memory Flashcards
(21 cards)
What does RAM stand for?
Random Access Memory
RAM is used as the main memory in a computer.
Is RAM volatile or non-volatile memory?
Volatile
RAM requires power to retain its data.
What is the main function of RAM in a computer?
To store data, files, and programs while they are being used.
When a computer boots up, what is copied from secondary storage to RAM?
The operating system.
What happens to applications and files when they are opened?
They are copied from secondary storage to RAM.
How does RAM compare in speed to CPU cache and secondary storage?
Slower than CPU cache but faster than secondary storage.
What is virtual memory?
Secondary storage used as extra RAM.
Why is virtual memory needed?
When RAM is full and there is a need to store additional application data.
What happens when the CPU needs to read data stored in virtual memory?
The data must be moved back to RAM.
True or False: Using virtual memory can slow down a computer’s response time.
True.
What does ROM stand for?
Read Only Memory.
Is ROM volatile or non-volatile memory?
Non-volatile.
Where is ROM typically found in a computer?
On a small, factory-made chip built into the motherboard.
What instructions does ROM contain?
Instructions needed for the computer to boot up.
What is the BIOS?
Basic Input Output System, a type of firmware.
What does the CPU do as soon as the computer is powered on?
Reads instructions from ROM to perform self checks and set up the computer.
Can the BIOS on a ROM chip be updated?
Yes, it can be ‘flashed’.
What type of memory is often used in ROM chips?
Flash memory.
Fill in the blank: RAM is where the computer puts everything its _______ in.
working on.
What does secondary storage refer to?
Permanent memory that retains data even when the power is off.
What can cause a computer to slow down when using virtual memory?
Constantly moving data between virtual memory and RAM.
