Operating System (OS)
Memory

is a device that performs a sequence of operations specified by instructions in memory.
is a sequence of instructions
is the device where information is stored
is typically characterized by interactive processing and time-slicing of the CPU
None of these

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Operating System (OS)
System generation:

is always very difficult
varies in difficulty between systems
is always quite simple
None of these
requires extensive tools to be understandable

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Operating System (OS)
File record length

Should always be variable
should be chosen to match the data characteristics
should always be fixed
None of these
depends upon the size of the file

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