5 Questions
What are the two types of primary memory mentioned in the text?
Read only memory (ROM) and random access memory (RAM)
What is the difference between ROM and RAM?
ROM is non-volatile and its contents are not lost when the computer is turned off, while RAM is volatile and loses its contents when unpowered.
How does primary memory provide fast access to data and instructions?
Primary memory is built inside the computer, allowing the processor to quickly read from and write to it.
What is the size of primary memory in a modern personal computer?
Often around 4 GB
Can data be written to ROM?
No, ROM can only be read from, not written to.
Study Notes
Primary Memory
- There are two types of primary memory: ROM (Read-Only Memory) and RAM (Random Access Memory)
ROM vs RAM
- ROM is non-volatile, meaning its contents are retained even when the power is turned off
- RAM is volatile, meaning its contents are lost when the power is turned off
- Data cannot be written to ROM, it is pre-programmed and unchangeable
- Data can be written, read, and erased from RAM
Primary Memory Function
- Primary memory provides fast access to data and instructions because it is a part of the central processing unit (CPU) and is directly connected to it
Primary Memory Size
- The size of primary memory in a modern personal computer varies, but it is typically in the range of 4-16 GB or more
Test your knowledge on computer primary memory with this quiz! Learn about the differences between read-only memory (ROM) and random access memory (RAM) and understand why ROM is non-volatile while RAM is volatile.
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