JNTU B.Tech III COMPUTER ORGANIZATION Previous Question Paper (November/December - 2018 - R16)

Obtain the 1’s and 2’s complements of the following eight-digit binary numbers i) 10110010 ii) 11001110

Define the following: (i) Microoperation (ii) Microcode.

Convert the A B C D E F G + * + * + * arithmetic expression from reverse polish notation to infix notation.

Define the typical data transfer and data manipulation instructions available in a computer.

Mention various parameter passing techniques in ALP.

What is an interrupt driven I/O? Explain how it is serviced?

What are priority interrupts? Explain.

Write about asynchronous data transfer instructions.

Define (i) Flash and (ii) EPROM.

Given a hit ratio of 0.92 and cache access time of 40 ns and main memory access time of 300 ns. Calculate the average access time.

Simplify the following Boolean function in Product-of-sums form by means of a four variable map. Draw the logic diagram with (i) OR-AND gates; (ii) NOR gates. F(w, x, y, z) = ∑ (2, 3, 4, 5, 6, 7, 11, 14, 15)

What is the difference between a direct and an indirect address instruction? How many references to memory are needed for each type of instruction to bring an operand into a processor register?

Explain the difference between hardwired control and microprogrammed control. Is it possible to have a hardwired control associated with control memory?

Derive the control gates for the write input of the memory in the basic computer.

Explain about assembler directives and operators.

With the neat sketch explain about physical memory organization of 8086 processor.

List and explain the various instruction formats of a computer.

Convert the following numerical arithmetic expression into reverse polish notation and show the stack operations for evaluating the numerical result: (3 + 4) [10 (2 + 6) + 8]

A line of code in an assembly language program is as follows: DEC – 35. Show that four memory words are required to store the line of code and give their binary content.

Write a subroutine to subtract two numbers. In the calling program, the BSA instruction is followed by the subtrahend and minuend. The difference is returned to the main program in the third location following the BSA instruction.

Discuss the difference between tightly coupled multiprocessors and loosely coupled multiprocessors from the viewpoint of hardware organization and programming techniques.

Explain about inter process communication.