04 Optical Storage

What is optical storage?

• A type of storage using magnetic fields

• A type of storage using lasers to write and read data

• A type of storage using electrical charges

• A type of storage using mechanical parts

Which of the following is an example of optical storage?

• Hard drive

• USB flash drive

• CD

• RAM

What is one advantage of optical storage?

• High durability

• Large capacity

• Portability

• Fast data access

What is a disadvantage of optical storage?

• High cost

• Susceptibility to scratches

• Heavy weight

• Complex installation

How much data can a CD typically store?

• 1 GB

• 700 MB

• 2 TB

• 500 MB

What is the capacity of a Blu-ray disc?

• 4.7 GB

• 700 MB

• 25 GB

• 50 GB

Why might optical storage be considered reliable?

• It is immune to scratches

• It is fast to access

• It is reliable if stored properly

• It has a large capacity

What is a cost advantage of optical storage?

• Expensive to produce

• Cheap to buy in bulk

• High maintenance cost

• Requires expensive equipment

What is a portability advantage of optical storage?

• Heavy and difficult to transport

• Small and lightweight

• Requires special handling

• Needs a power source

What is a speed disadvantage of optical storage?

• Fast data transfer

• Slow reading due to accessing the optical disk drive

• Instant data access

• High-speed data processing