Explain why peripherals are not connected directly to the system bus?

$2.$Compare between the different Input$-$Output control techniques: programmed I$/$O $,$ in terrupt, DMA, and Channel IO$.$

$3.$There are $3$ major methods that can be used of allocating disk space; one is contiguous allocation method. Search for one of the other $2$ methods $($Linked Allocation and Indexed Allocation$)$ and compare its performance with the performance of contiguous allocation method.

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1 Peripherals are not connected directly to the system bus for several reasons Peripherals often operate at different speeds and have different commun... View the full answer