Computers systems are capable of storing vast amounts of data. An information system will store music, videos or thousands of online transactions for the largest banking company in the world.
What is the difference between a CD-R and a CD-RW?
A CD-R can only be written on once, but a CD-RW can be written on many times
A CD-R is Read Only where a CD-RW can be written on many times
A CD-R can be written on many times, but a CD-RW can only be written on once
What is the difference between a CD and a DVD?
A CD is optical storage and a DVD is magnetic storage
A DVD has a larger capacity than a CD
A CD can only store music files, whereas a DVD can store music and videos
What is the difference between a CD and a magnetic tape?
Magnetic tape has a smaller capacity than a CD
A magnetic tape is magnetic storage, whereas a CD is optical storage
Magentic tape is only recordable, unlike a rewritable CD
What does USB stand for?
Universal Standard Address Bus
Universal Serial Bus
Universal Serial Buffer
What is meant by the capacity of a storage device?
The capacity is the number of USB ports which can be connected to the storage device
The capacity is the speed at which data can be transferred on a device
The capacity is the volume of data that the device can store, measured in bytes
What is meant by 'portable' with regards to a storage device?
This means that the storage is 'built in' to the device
This means that it is small and easy to take with you on the move
This means that the storage is external to the device
What is meant by external storage?
This type of storage is relatively small and easy to carry around
This type of storage is used quite often and, to save it overheating, it is kept 'external' to the building to help keep it cool
This type of storage is not built into the computer system
Magnetic disks and external hard drives all have what in common?
They are all magnetic devices
They are all optical devices
They are all types of built-in storage
What does RW stand for?
What do CDs, DVDs and Blu-rays all have in common?
They are all magnetic storage devices
They are all optical storage
They are all the smallest, most portable devices