1.2 Primary & Secondary Storage Revision

ROM stands for...

• Read Optical Memory
• Random Only Memory
• Read Only Memory
• Random Optical Memory

RAM stands for ...

• Read Access Memory
• Random Application Memory
• Read Application Memory
• Random Access Memory

This memory stores the data of the operating system and programs that are currently running, for access by the CPU.

• RAM
• ROM
• Cache memory
• Flash memory

Why is ROM need in a computer system?

• It stores the 'bootstrap loader' which is needed to load the operating system.Without it, the computer wouldn't turn on.
• It stores the data of the operating system and programs that are currently running, for access by the CPU.

Where is data stored when it is Virtual Memory?

• It is stored on a area of a secondary storage device e.g. hard disk drive.
• It is stored in the RAM.
• It is stored in the ROM.
• It is stored in an optical drive e.g. CD.

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.

Optical device, fairly fragile, easy to snap or scratch.

• Flash memory
• Magnetic Tape
• CD
• Hard disk

Very portable as it is designed to be fitted into small electronic devices.

• Flash memory devices
• Internal hard disk
• Magnetic tape
• Server

The most durable storage device as it has not moving parts

• Solid State Storage
• Magnetic Storage
• Optical Storage

Large computers used for backup storage are called

• Supercomputers
• Servers
• Clients
• Giants