Multitasking differs from multiprocessing in that ________.
A) multiprocessing uses a single processor to run multiple processes
B) multitasking uses a single processor to run multiple processes
C) the CPU must alternate between running processes when multiprocessing
D) multitasking can run multiple processes simultaneously
Question 2
Direct memory access is ________.
A) faster than ordinary memory access techniques because it allows each I/O device direct access to the CPU memory
B) handled by a special DMA controller and is usually several times faster than data transfers handled by the CPU
C) faster because it substitutes higher speed static RAM for slower dynamic RAM (DRAM), which has to be refreshed on a regular basis and thus slows down the entire computer system
D) any one of the above, depending on the particular computer system
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What single payment one year from now would be economically equivalent to payments of $1,000 ...