Electronics and Communication Engineering - Microprocessors

31. 

A nibble corresponds to

A. 2 successive bits of data
B. 4 successive bits of data
C. 8 successive bits of data
D. 16 successive bits of data

Answer: Option B

Explanation:

Nibble has 4 bits.


32. 

Consider the following statements

  1. An assembler is a program having assembly language program as input and machine language program as output.
  2. A macro assembler is an assembler with additional macro facilities.
  3. A cross assembler for a μP X is an assembler which executes on source microcomputer with a different CPU than X bit generates code for X.
  4. Assemblers generally do not provide macro facilities.
Of the above statement

A. All are correct
B. only 1, 2, 3 are correct
C. only 1, 2, 4 are correct
D. only 1, 3, 4 are correct

Answer: Option B

Explanation:

Assemblers do provide macro facilities.


33. 

A computer window has a bar at its top to bear the name of window. This bar is called

A. title bar
B. status bar
C. menu bar
D. control bar

Answer: Option A

Explanation:

It is called 'title bar'.


34. 

Read the following statements about files in Pascal

  1. A file can grow or shrink dynamically.
  2. A file which consists of only characters is called text file.
  3. Text files may be read and written using standard Pascal READ and WRITE procedures.
  4. Every file must have a beginning but may or may not have an end.
Which of the above are correct?

A. All
B. 1, 2, 3 only
C. 2, 3, 4 only
D. 1, 2 and 4 only

Answer: Option B

Explanation:

Only 1, 2, 3 are correct and 4 is wrong.


35. 

If word length is 16 bits the decimal equivalent of largest number which can be stored is

A. 32767
B. 32766
C. 16383
D. 16384

Answer: Option A

Explanation:

Complete real number has all the three, i.e., sign, integer part and fraction part.