Tag Archives: diagram


Explain the operation of a micro programmed control unit with the help of a diagram. 8m Jun2008

Explain the operation of a micro programmed control unit with the help of a diagram. 8m Jun2008   THE MICRO-PROGRAMMED CONTROL The logic of the control unit is specified by a micro-program. A micro-program is also called firmware (midway between the hardware and the software). It consists of: (a) One or more micro-operations to be… Read More »

Give block diagram of DMA controller. How does the CPU initialize the DMA transfer? 5m Jun2008

Give block diagram of DMA controller. How does the CPU initialize the DMA transfer? 5m Jun2008 Device Controller A device controller need not necessarily control a single device. It can usually control multiple I/O devices. It comes in the form of an electronic circuit board that plugs directly into the system bus, and there is… Read More »

Explain how overlapped register window can be implemented for procedure calls. Explain the process of parameter passing for the subroutine call on this machine? – IGNOU MCA Assignment 2015 – 16

MASTER OF COMPUTER APPLICATIONS Course Code : MCS-012 Course Title : Computer Organisation and Assembly Language Programming Assignment Number : MCA(I)/012/Assignment/15-16 Maximum Marks : 100 Weightage : 25%   Assume that a RISC machine has 128 registers out of which 16 registers are reserved for the Global variables and 16 for Instruction related tasks. This… Read More »

Simplify the following Boolean function in SOP form using K-Map: F (A, B, C, D) = Σ ( 0,1, 2, 4, 6, 8, 9, 12, 14, 15 ). Draw logic circuit diagram. 8m Jun2008

Simplify the following Boolean function in SOP form using K-Map: F (A, B, C, D) = Σ ( 0,1, 2, 4, 6, 8, 9, 12, 14, 15 ). Also, draw the simplified logic circuit diagram. 8m Jun2008  K-Map for F is: Thus, the simplified equations for F (A, B, C, D) = Σ (0,1, 2, 4, 6,… Read More »

Simplify Boolean function using Karnaugh map method F (A, B, C, D): Σ (0, 2, 4, 5, 6, 7, 8, 10, 13, 15) Also, draw the corresponding logic circuit diagram. 8m Jun2007

Construct the Karnaugh map for the following function, and find the function in sum of product form. Draw the resultant logic diagram. F (A, B, C, D): Σ (0, 2, 4, 5, 6, 7, 8, 10, 13, 15). 5m Dec2007  K-Map for F is: Thus, the simplified equations for F (A, B, C, D) =… Read More »

Simplify Boolean function using Karnaugh map method F(A,B,C,D) = Σ(1,2,5,6,7,8,9,11,12,15) Also, draw the corresponding logic circuit diagram. 8m Jun2007

Simplify the following Boolean function using Karnaugh map method F( A ,B , C , D ) = Σ ( 1, 2 , 5 , 6 , 7 , 8 , 9 , 11 , 12 ,15 ) Also, draw the corresponding logic circuit diagram. 8m Jun2007   K-Map for F is: Thus, the simplified equations for F (A,… Read More »

Draw the logic diagram of a full adder. Create a 2-bit adder-subtractor circuit using the block diagram of the full adder 6m Jun2006

Draw the logic diagram of a full adder. Create a 2-bit adder-subtractor circuit using the block diagram of the full adder 6m Jun2006 A combinational circuit which performs addition of two bits is called a half adder, while the combinational circuit which performs arithmetic addition of three bits (the third bit is the previous carry bit)… Read More »

Simplify the following Boolean function in POS form using K-maps, also draw a logic diagram using only NAND gates 5m Dec2005

 Simplify the following boolean function in POS form using K-maps : F (A, B, C, D) = Σ (0, 2, 4, 5, 6, 8, 10, 13, 15) Also draw a logic diagram using only NAND gates.         5m Dec2005    K-Map for F is: Thus, the simplified equations for F (A, B, C, D) =… Read More »

Explain the working of the instruction pipelining, with the help of a diagram 5m Dec2005

Explain the working of the instruction pipelining, with the help of a diagram 5m Dec2005  INSTRUCTION PIPELINING To extract better performance instruction execution can be done through instruction pipeline. The instruction pipelining involves decomposing of an instruction execution to a number of pipeline stages. Some of the common pipeline stages can be instruction fetch (IF),… Read More »

Explain the following with the help of a suitable diagram or an example: Error detection and correction process 5m Dec2005

Explain the following with the help of a suitable diagram or an example.  Error detection and correction process 5m Dec2005  Error Detection and Correction Codes: The code, which helps in recognition and correction of errors Computer is an electronic media; therefore, there is a possibility of errors during data transmission. Such errors may result from… Read More »