Flashcards
Storage Devices
Cards in this deck (10)
- 1what does ROM stand for?Read only memory
- 2What does RAM stand for?Random access memory
- 3Name 3 differences of ROM to RAM:ROM:
contents are permanent
contents are not lost when power is turned off (non volatile)
Data cannot be altered - 4Name 3 differences of RAM to ROM:RAM:
contents can be changed
contents are lost when power is off (volatile)
Data can be altered - 5what does EEPROM stand for and how is it used?EEPROM stands for Electrically Erasable Programmable Read-Only Memory and is used for storing a set of instructions in the Basic Input/Output System which a computer uses when starting up.
- 6Where is Flash memory used?Flash memory is used in cameras,mobile phones, USBs and hard disks. It does not lose data when turned off and the data can be rewritten many times.
- 7What is the capacity of memory and storage measured in?Megabytes (MB)
Gigabytes (GB)
terabytes (TB) - 8Why is secondary/ backing storage memory needed?To store files when power is turned off. It stores the operating system, software applications and data files. Hard disks are most commonly used for secondary/backing storage.
- 9Name 3 storage devices and two benefits of them.CD - cheap to buy, all modern computers can use them
DVD- large storage capacity, cheap to buy
Flash memory- can be used in all modern computers
Not easily damaged - 10Name 3 storage devices and name 2 disadvantages of them.CD- easily damaged, small capacity
DVD- easily breakable, cannot be used on the cd drives of older computers
Flash memory- very expensive, easily lost/stolen
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- Flashcards on Storage Devices, created by ibiti002.303 on 10/09/2013.
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- ibiti002.303
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