Secondary Storage #1

Secondary Storage #1

Multiple Choice

Why do you think that modern computers are called 'general purpose' computers?

• They can change the running program to suit the task

• They can run many programs at the same time

• They have a lot of different peripherals available

Multiple Choice

All computers need a primary memory storage, also known as ...

• RAM

• ROM

• HDD

• Cache

Fill in the Blanks

The RAM memory chips are

because they need to be constantly refreshed to keep their contents.

Multiple Select

Select three types of secondary storage mediums ...

• magnetic

• optical

• solid-state

• volatile

Fill in the Blanks

Work out the 8 bit binary pattern stored in this sector of a hard disk.

Read N (North) as a 0, S (South) as a 1.

Fill in the Blanks

Work out the 8 bit binary pattern stored on the surface of this optical disk.

Read a change from a Pit to a Land as a 1, anything else as a 0.

Fill in the Blanks

Work out the 8 bit binary pattern stored on this solid-state memory cell.

Read an electron trapped inside the middle layer as a 1, outside the middle as a 0.

Multiple Choice

Which type?

• Magnetic

• Optical

• Electrical

Multiple Choice

Which type?

• Magnetic

• Optical

• Electrical

Multiple Choice

Which type?

• Magnetic

• Optical

• Electrical

Fill in the Blanks

Magnetic storage uses the

of particles on a disk to represent 1s and 0s.

Fill in the Blanks

Optical storage uses a

and the pits and lands on the surface of a disk to represent 1s and 0s

Fill in the Blanks

Solid-state storage uses

forced into pools to represent 1s and 0s

Poll

How well have you understood the content of this lesson?

• Not at all

• Some of it

• Most of it

• All of it