Why is RAM primary storage and not secondary storage
RAM temporarily stores data that is being used at a given time. The contents of RAM can be changed and are lost when the computer is turn off. Data which is lost when the computer is turned off is called volatile memory.
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What is primary storage used for
Primary storage is the memory that the computer uses to store data it needs to run
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What is secondary storage used for
Secondary storage (or backing storage) is the memory that stores porgrams and documents. It is non-volatile and therefore when the computer is turned off, the data is kept
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Why is ROM non-volatile
ROM is non volatile and therefore when the computer is tunrned off, the data is kept
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WHat does the printer buffer do
The printer buffer is the memory in a printer to hold the printing queue
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Describe a magnetic method storage
Hard Disk Drive- Most common way of storing data, it can be internal or external. Disadvantage- move parts constantly and this could result in it breaking. Advantages- high transfer rate and also a very high storage capacity
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USB Memory Sticks
A USB is a portable device for storing small documents. it is very cheap and lighweight, and there arent any moving parts so it is reliable. However it can be easily lost and there is a smaller capacity
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Why is solid state hard disk more reliable than a magnetic one
A solid state hard drive is more reliable than a magnetic hard disk ad there aren't any moving parts
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Difference between DVD-R, DVD-RW, DVD-ROM
DVD-ROM- data already written on it DVD-R- is a blank cd that can be written on once DVD-RW- is a blank cd that can be written on many times
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What storage device should be used for storing school work
USB Memory Stick
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How many GB in a TB
1000 GB
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Other cards in this set
Card 2
Front
What is primary storage used for
Back
Primary storage is the memory that the computer uses to store data it needs to run
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