Category Archives: Computer Organisation Theory

All important theory placed here!

In RAID levels, explain the features of those levels which have poor I/O request rate (read/write) 5m Dec2005

In RAID levels, explain the features of those levels which have poor I/O request rate (read/write) 5m Dec2005  Redundancy of data industrial standard, which exists for multiple-disk database schemes, is termed as RAID, i.e., Redundant Array of Independent Disks. The basic characteristics of RAID disks are:  Operating system considers the physical disks as a single… Read More »

Represent the number (-26.5)10 as a floating point binary number with 24 bits. The normalized fraction mantissa has 16 bits and the exponent has 8 bits 5m Dec2005

Represent the number (-26.5)10 as a floating point binary number with 24 bits. The normalized fraction mantissa has 16 bits and the exponent has 8 bits. Make and state suitable assumptions, if any 5m Dec2005 First of all draw the 24 bits precision representations  S stands for Sign (white color) E stands for Exponent (yellow color) N stands for Number… Read More »

RegisterA holds the 8-bits 11011001. Determine the B operand and the logic micro-operation to be performed in order to change the value in A to: 5m Dec2005

RegisterA holds the 8-bits 11011001. Determine the B operand and the logic micro-operation to be performed in order to change the value in A to:  5m Dec2005  01101101 11111101 First refer the table for Logic micro-operations  which can be applied. R1:- 1 0 1 0        (initial value)          R2:- 1 1… Read More »

Construct 16-to-1 line multiplexer with two 8-to-1 line multiplexers and one 2-to-1 line multiplexer. Makes suitable assumptions, if any 5m Dec2005

Construct 16-to-1 line multiplexer with two 8-to-1 line multiplexers and one 2-to-1 line multiplexer. Makes suitable assumptions, if any 5m Dec2005  Multiplexer Multiplexer is one of the basic building units of a computer system which in principle allows sharing of a common line by more than one input lines. It connects multiple input lines to… Read More »

A two-way set-associative cache memory uses blocks of four words. The cache can accommodate a total of 2048 words from the main memory. The main memory size is 128K x 32. 5m Dec2005

What is cache memory?                                                                                5m Dec2005 A two-way set-associative cache memory uses blocks of four words. The cache can accommodate a total of 2048 words from the main memory. The main memory size is 128K x 32. What are the sizes of the following?      TAG      INDEX      Data    … Read More »

Write a 8086 assembly language program to find whether two strings are of equal length. 5m Dec2005

Write a program in 8086 assembly language to find whether two strings are of equal length. You can assume that the strings are stored in the main memory and a string is terminated by a $ character 5m Dec2005 DATA SEGMENT STR1 DB ‘GANGADHAR$’ STR2 DB ‘KOPELLA$’ MSG1 DB 10,13,’LENGTH OF THE STRING 1 IS… Read More »

A computer has 32 registers, ALU has 64 operations. in a common bus system. Formulate a control word; specify bits in each field of the control word. 5m Dec2005

A computer has 32 registers, ALU has 64 operations. All are connected to a common bus system. Formulate a control word for the computer; specify the bits in each field of the control words. 5m Dec2005 Please note the following points: The opcode size is 7 bits. So, in general it will have 27 =… 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 »

Explain the following with the help of a suitable diagram or an example: Any two characteristics of video cards / adapters 5m Dec2005

Explain the following with the help of a suitable diagram or an example.  Any two characteristics of video cards / adapters 5m Dec2005  FIVE CHARACTERISTICS OF VIDEO CARDS / ADAPTERS: The purpose of your graphic display system is to display bitmapped graphics on your monitor. The image displayed on your system thus consists of small… Read More »

Explain the following with the help of a suitable diagram or an example: – Evaluation stack architecture 5m Dec2005

Explain the following with the help of a suitable diagram or an example.  Evaluation stack architecture 5m Dec2005 A stack is a data structure that implements Last-In-First-Out (LIFO) access policy. You could add an entry of data (or value) to the stack with a PUSH (value) Function and remove an entry of data (or value) from the… Read More »