Chapter 3 Hardware IGCSE Computer Science

It is the part of the computer memory which can be accessed

directly from the CPU;

• Primary Memory

• Secondary Memory

Primary memory allows the CPU to access

applications and services temporarily stored in memory locations.

• True

• False

Which of the following is NOT a feature of RAM?

• it is a temporary memory

• used to store data, files, part of an application or part of the operating

  system currently in use

• it is volatile, which means memory contents are lost when powering off the

  computer.

• they are non-volatile

It is still one of the most common methods used to store

data on a computer.

• HDD

• Flash Drive

• Cloud

• USB

Which of the following is NOT a feature of ROM ?

• they are permanent memories

• the contents can only be read

• they are often used to store data that the computer needs to access when

  powering up for the first time (the basic input/output system (BIOS));

• used to store data, files, part of an application or part of the operating

  system currently in use

the larger the size of RAM the faster the computer will operate.

• True

• False

Which type of RAM needs to be constantly refreshed?

• DRAM

• SRAM

Which of the two types of RAM is faster?

• DRAM

• SRAM

Which of the two is the most common type of RAM used in computers?

• SRAM

• DRAM

Primary memory is directly addressable by the CPU

• True

• False