Computer Basic Information
The disadvantage of dynamic RAM over static RAM is

None of these
need to refresh the capacitor charge every once in two milliseconds
higher bit density
higher power consumption
variable speed

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Computer Basic Information
Hardware includes ..........

sets of instructions that a computer runs or executes.
all devices used to input data into a computer.
all devices involved in processing information including the central processing unit, memory and storage.
None of these
the computer and all the devices connected to it that are used to input and output data.

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