Explain synchronous bus

synchronous bus is a bus used to interconnect devices that comprise a computer system where the timing of transactions between devices is under the control of a synchronizing clock signal. [...]

Micro programmed control and hard-wired control

Micro programmed control is a control mechanism to generate control signals by using a memory called control storage (CS), which contains the control signals. Although micro programmed control seems to be advantageous to CISC machines, since CISC requires systematic development of sophisticated control signals, there is no intrinsic difference between these 2 control mechanisms. [...]