Primary Memory ROM RAM

Teams > Paper 1 Memory > Primary Memory > Do Now

​Paper 2 - Computer Systems + Computer Architecture > Primary Memory: RAM and ROM

Multiple Choice

Which of these is read-only?

• RAM

• ROM

• CPU

• Cache

Multiple Choice

What does volatile mean?

• Data is lost without power

• Data remains even after power loss

Multiple Choice

Which of these tends to be larger (in terms of MBs)?

• ROM

• RAM

• Cache

Multiple Choice

What is meant by primary memory?

• The optional memory that can be used or not used

• The main and most frequently accessed type of memory in a computer system. Mostly its not portable and fixed.

• The frequently accessed memory but it's not the main memory

Match

Match the following examples of primary memory

Random Access Memory

Read Only Memory

Hard disk

• Random Access Memory

• Read Only Memory

• Hard disk

Multiple Choice

The RAM memory chips are _________ because they need to be constantly refreshed to keep their contents.

• volatile
• non-volatile

• dangerous

• non-dangerous

Multiple Choice

Virtual memory is used

• when the RAM is not enough to contain all of the programs and data currently being used
• every other time a program is used
• as a secondary storage medium for long term storage of documents
• when the CPU is getting overheated

Multiple Choice

If a program is stored in virtual memory, it needs to be put back onto the RAM before it can be used again.

• TRUE
• FALSE

Multiple Choice

Virtual memory makes use of secondary storage as if it were main memory.

• TRUE
• FALSE

Multiple Choice

The data is lost when you turn the computer off

• Volatile
• Non-Volatile

Multiple Choice

The data is not lost when you turn the computer off

• Volatile
• Non-Volatile

Multiple Choice

A computer is using Virtual Memory. Why?

• There is not enough RAM

• The cache is too slow

• The virtual memory is too small

• The hard disk is too slow

Multiple Choice

What is a disadvantage of Virtual Memory?

• Read/Write speed of a hard disk drive is slower than RAM. If the computer has to rely on this, the system is much slower.
• Read/Write speeds of a hard drive are faster than RAM, meaning the system is much faster.