Family-of-computers idea, The family-of-computers idea was

Family-of-computers idea

Assignment Help Basic Computer Science

Reference no: EM13972010

1. On early computers, every byte of data read or written was handled by the CPU (i.e., there was no DMA). What implications does this have for multiprogramming?

2. Instructions related to accessing I/O devices are typically privileged instructions, that is, they can be executed in kernel mode but not in user mode. Give a reason why these instructions are privileged.

3. The family-of-computers idea was introduced in the 1960s with the IBM System/360 mainframes. Is this idea now dead as a doornail or does it live on?

Reference no: EM13972010

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