Computer science 1.2

Question 1

What is RAM?

Answer 1

RAM is volatile memory which holds programs which are currently running temporarily. This can be edited.

Question 2

What is ROM

Answer 2

ROM is non-volatile memory which stores BIOS and has the memory of booting up the computer. It also cannot be edited.

Question 3

What is the difference between volatile and non-volatile memory?

Answer 3

Volatile is a memory that is temporary and will not retain previous information. Non-volatile will retain memory even without a power source.

Question 4

What is the difference between DRAM and SRAM?

Answer 4

DRAM is used in the main memory within the RAM modules while SRAM is used in the cache due to it being faster than DRAM. DRAM constantly need a ‘refresh signal’ while SRAM doesn’t require it.

Question 5

What is the purpose of virtual memory?

Answer 5

It’s a slow form of storage when RAM runs out of space. The less used data is moved to virtual memory and data that is need by the computer is moved from virtual memory to RAM.

Question 6

What is flash memory?

Answer 6

its a form on non-volatile storage that uses electrical effects to store data.its retains data for an extended period of time.