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WorksheetsComputer Science 1.4 (Secondary Storage)
Total questions: 22
Worksheet time: 15mins
Which of these has the highest capacity
memory card
DVD
Internal solid state
Which of the following is not an optical device?
USB memory stick
Blu-ray
compact disc
DVD
Secondary storage is (a) meaning it will not lose data if the power is turned off.
Which of these are solid state drives?
SSD
USB memory card
Memory card
Blu-Ray
This is the term that shows how easily it's damaged.
(a)
This is the term that shows whether you can put it in a large pocket, bag or carry it around.
(a)
Why is Solid State Drives more durable than magnetic devices?
It just is.
As it is very reliable.
As it has no moving parts.
As it is 'solid'.
What is the average capacity for a portable hard disk?
500GB
1TB-16TB
1-16MB
760GB
What can a hard disk durability be affected by?
physical mistreatment
heat
magnetic fields
gravity
Is magnetic devices considered cheap?
yes
No
What's the average capacity for a USB memory stick?
Up to 2TB
16MB-256GB
256GB-1TB
14-17MB
Where is memory cards typically used?
Microwaves
Phones
Washing Machines
Cameras
Choose all disadvantages of Solid-state drives.
Medium capacity
Limited number of read/write cycles
Quite expensive
Easily damaged
Choose all advantages of solid-state drives.
Lower power consumption
Slow to access data
Light and thin
Run cooler than HDDs
Cheap
Optical devices uses a (a) to write and read data
What is a typical use of CD, DVD and Blu-Ray?
For Backup
For storing songs
Distribute softwares
Distribute games
Select all that are not advantages of optical devices.
Portable
Thin
Lightweight
Expensive
Is Blu-Ray starting to replace DVDs now?
yes
No
True or False: Blue-ray is expected to last 20-100 years
True
False
True or False: DVDs and CDs expected life span is 30-40 years.
True
False
Are Optical Devices reliable?
Good for medium term storage but degrades over time.
Very reliable
Not very reliable, it can be damaged easily.
Medium term, quality stays the same.
A disadvantage of optical device is that it has ___ ________.(How much data it can store)
(a)
