Secondary storage devices Computer science AQA A-Level

......... storage is volatile and usually refers to RAM

Secondary storage refers to non-volatile storage e.g..... (Multi tick)

• Magnetic storage such as the hard disk

• The CPU - Central Processing Unit e.g. Logical expressions

• Optical storage that uses laser light such as CD-ROM

• Solid state devices using Flash memory

Each secondary storage device have their own advantages and disadvantages in terms of...

• Durability, Read / write speed, Calibration, Portability and Cost

• Durability, Capacity, Portability and Cost

• Durability, Read / write speed, Capacity, Pettiness and Cost

• Durability, Read / write speed, Capacity, Portability and Cost

Magnetic HDD have... (Multi tick)

• Tracks

• Sections

• Ticks

• Platters

• Sectors

A disk's surface is divided into ........ tracks (circles within circles)

HDD Disks spins at speeds between.... (Multi tick)

• 3600 RPM

• 1200 RPM

• 7200 RPM

• 12200 RPM

HDD Spinning platters are each read by drive .....

Name No. 1 on the diagram

Name No. 2

Name No. 3