Tag Archives: Explain

Explain the term FAT in the context of disk operating system. What will be the size of a disk and it’s FAT? – 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% Explain the term FAT in the context of disk operating system. What will be the size of a disk and it’s FAT, if a disk has 64… Read More »

Write and explain the sequence of micro-operations that are required to fetch and execute this instruction? – 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 the machine as stated in part (a) has named 5 of its general purpose registers based on their possible role in instruction execution as… Read More »

List and explain the precedence of Arithmetic, Logical and Relational operators in ‘C’. 10m Dec2007

List and explain the precedence of Arithmetic, Logical and Relational operators in ‘C’. 10m Dec2007 C uses a certain hierarchy to solve such kind of mixed expressions. The hierarchy and associatively of the operators discussed so far is summarized in Table. The operators written in the same line have the same priority. The higher precedence operators are written… Read More »

Explain the basic principle of Quine-McCluskey method of simplifying the Boolean expression with the help of an example function. 6m Jun2007

Explain the basic principle of Quine-McCluskey method of simplifying the Boolean expression with the help of an example function. 6m Jun2007 Quine McKluskey Method A tabular method was suggested to deal with the increasing number of variables known as Quine McKluskey Method. This method is suitable for programming and hence provides a tool for automating… Read More »

Design and draw a 3 x 8 decoder using NOT gates and AND gates and explain its working. 8m Jun2007

Decoder converts one type of coded information to another form. A decoder has ‘n’ inputs and an enable line (a sort of selection line) and 2n output lines. Let us see diagram of 3×8 decoder which decodes a 3 bit information and there is only one output line which gets the value 1 or in… Read More »

Explain any five DOS function calls supported by INT 21H in the 8086 assembly language with an example of each call. 10m jun2006

(d) Explain, with an example of each call, any five DOS function calls supported by INT 21H in the 8086 assembly language.             10   DOS Function Calls (Using INT 21H) INT 21H supports about 100 different functions. A function is identified by putting the function number in the AH register. For example, if we… Read More »

Explain the process of handling an interrupt that occurs during a program? 9m jun2006

Explain the process of handling an interrupt that occurs during the execution of a program, with the help of an example. 9m jun2006   Interrupt Handling and Instruction Cycle  On the occurrence of an interrupt, an interrupt request (in the form of a signal) is issued to the CPU. The CPU on receipt of interrupt… Read More »

Explain any five addressing modes used in an 8086 microprocessor, with the help of an example of each. 5m jun2006

Explain any five addressing modes used in an 8086 microprocessor, with the help of an example of each.    5m jun2006 The following tree shows the common addressing modes: In general not all of the above modes are used for all applications. However, some of the common areas where compilers of high-level languages use them are:… Read More »

Explain the following: Parity bit, Floating point notation, Refresh rates in video controllers and an l/O channel 8m Jun2006

Explain the following with the help of an example or a diagram, whichever is appropriate:    8m jun2006 (i)                 Parity bit (ii)               Floating point notation (iii)             Refresh rates in video controllers (iv)             An l/O channel     Parity bit An error bit changes from 0 to 1 or 1 to 0. One of the simplest… Read More »

Explain the micro-instruction encoding methods with the help of suitable diagrams 10m Dec2005

Explain the micro-instruction encoding methods with the help of suitable diagrams. If a machine has a very large number of instructions and registers, which of the two encoding methods is preferred? 10m Dec2005  The characteristics of highly encoded and unencoded micro-instructions:- Unencoded micro-instructions  One bit is needed for each control signal; therefore, the number of… Read More »