computing

computing

1. what is secondary storage? devices are not constantly connected to the computer.

2. why is secondary storage needed on a computer? back up data need for larger storage capacity.

3. give three types of secondary storage? optical, magnetic, solid state.

4. what are two factors that should be considered when deciding on how data is stored? capacity speed, portability, durability, reliability and cost.

5. 1.3

6. 1.2

   • give two items that are stored in RAM? programs currently in use. data currently in use.
   • what are the main difference is between RAM and ROM? RAM is volatile, does loose memory.ROM is non volatile, doesn't loose memory.
   • what is the role of the power on self test in the boost sequence. Bios chip performs check, components are present and functioning correctly, if a test fail an error message is shown, checks are completed CPU starts operating system.