Questions

In all the above given options, there is no chemical change or reactions takes place only the shape or physical state is changed.

Administered prices are prices set by government or firms which are not determined by regular market forces. They do not vary in response to short-run fluctuations in demand and supply conditions.

Examples include price controls and rent controls.

interrupt is a signal send by external device to the processor so as to request the processor to perform a particular work.

A signal informing a program that an events has occurred. when a program receives an interrupt signal, it takes a specified action (which can be to ignore the signal).

Program counter holds the address of either the first byte of the next instruction to be fetched for exectuion or the address of the next byte of a multi byte instruction, which has not beeb completely fetched. in both the cases it gets increnented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.