What is control unit of microprocessor? Draw the block diagram of the hardwired control unit and explain the function of each unit in brief. [10]

Design a 4-bit combinational circuit decrementer (A1 $\gets$ A1 - 1) using four full-adder circuits. Explain the circuit. [5]

What do you understand by microprogrammed control computer? Explain main memory and control memory of microprogrammed controlled Computer. [5]

Show the step-by-step division process using Restoring Division Algorithm of 194 $\div $ 10) (AQ= 10100011 by B=1011). [5]

Explain the difference between isolated I/O and memory-mapped I/O? What are the advantages and disadvantages of each? [5]

What is Addressing Modes? Explain each with example. Explain the function and type of addressing mode with reason of instructions STA 4000H. [10]

Write 8085 assembly language to add two numbers located at 2030H and 2040H. Store the sum in the address 2050H. [5]

What is Microprocessor? What are 3 general categories of the function of microprocessor? Explain in brief. [5]

What is Virtual Memory? Explain in brief. [5]

What is selective set logical operation? Draw the hardware circuit of selective set logical operation. [5]

What is pipelining? Define instruction pipeline and explain the four segment instruction pipeline. [10]

Write short notes one a.) Performance of a pipelined processor Write short notes one b.) Page Replacement [2.5+2.5]