How many bit can accommodate instruction register _____________.
16 bit can accommodate instruction register.
A 16-bit integer can store 2^16 distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767. Hence, a processor with 16-bit memory addresses can directly access 64 KB of byte-addressable memory.
An instruction register (IR) is the part of a CPU's control unit that holds the instruction currently being executed or decoded. Each instruction register cell comprises a shift-register flip-flop and a parallel output latch. The shift registers hold the instruction bits moving through the instruction register.