Grade 9 - Ch 3.1

Storage Devices and Media 

3.1 Magnetic media and Magnetic storage Devices  

​Chapter 3 - ICT 0417

Storage devices and media

3.1 Magnetic media and magnetic storage devices 

In this chapter you will learn about:

• Storage devices: Magnetic ,Optical ,Solid state

• Storage media: Magnetic ,Optical ,Solid state

Secondary storage

There are three different categories of secondary storage which are based on technology that uses the following media:

• Magnetic

• Optical

• Solid state.

Multiple Choice

Storage media is the hardware on which the data is actually stored (for example DVD)

• yes

• no

Multiple Choice

Storage device is the hardware used to read from or write to the media (for example, CD/DVD reader or writer).

• yes

• no

Multiple Choice

in which type the contents are lost when computer is powered down

• Primary memory

• Secondary storage

Multiple Choice

Secondary storage hold their contents .........

• permanently

• temporarily

Multiple Choice

Which type is larger ?

• Primary Memory

• Secondary storage

Multiple Choice

Th data access time in Primary memory is .....

• Fast

• Slow

Multiple Choice

which type is cheaper ?

• Primary memory

• Secondary storage

Multiple Choice

which type can be read directly by the CPU?

• Primary memory

• Secondary storage

3.1 Magnetic media and magnetic storage devices

Use the properties of magnetism to represent the binary 1-value or the binary 0-value.

The two most common devices that use these magnetic properties to store data are:

• Magnetic tape drives

• Hard disk drives (HDD)
  

Multiple Choice

we can not use magnetic tape in long-term archiving of data

• yes

• no

Multiple Choice

What is the name of the digital data that is stored on the surface of the hard dsk ?

• platters

• Sectors

Exam Style Questions

1. Compare and contrast between Primary Memory and Secondary storage.

2. Discuss the advantages and disadvantages for Hard Disk Drives and Portable Hard Disk drives. 

3. Discuss uses for Magnetic tape drives.