# Computer Organization and Architecture

CSE - Computer Organization and Architecture - Questions and solutions
Question:-
Option (A)
By scanning a bit pattern, one can say whether, it represents data or not
Option (B)
Whether a given piece of information is a data or not depends on the particular application
Option (C)
Positive numbers can’t be represented in 2’s complement form
Option (D)
Positive number can’t be represented in 1’s complement form
Correct Option:
B,C,D
Question Solution:
The contents of a word may represent an instruction or data. Just by looking at the contents, it is not possible to attach any meaning to it. A word pointed to by the program counter, is an instruction. Otherwise it need not be. Also, the word data has context sensitive meaning. One can write a program in pascal that needs radius as the input data. The program, as a whole, is input data for the compiler during the compilation process.
Question:-
Option (A)
4
Option (B)
1
Option (C)
3
Option (D)
2
Correct Option:
D
Question Solution:
Converting to decimal form the given equation is
3 + (2 x 5) + ( 1 x 5 x 5) = 3 + A x B i.e., 38 = A x B + 3. So, A x B = 35. Possible, as permissible digits for a number in base ‘r’ 0, 1, 2, ….. (r-1).
Hence 1 and 5 are the possible values of A
Question:-
Option (A)
3
Option (B)
3 or 4
Option (C)
2
Option (D)
None of the above
Correct Option:
D
Question Solution:
Refer Qn. 10. Converting to decimal form A + 2 x 3 + 1 x 3 x 3 = 3 + 2 x A + 1 x A x A.
Solving for A, we get A = -4 or 3. Both are infeasible
Question:-
Option (A)
1, 0, 0
Option (B)
0, 1, 0
Option (C)
1, 1, 0
Option (D)
0, 1, 1
Correct Option:
B,C
Question Solution:
Substitute and verify each of the possibilities.
Question:-
Option (A)
8085
Option (B)
Motorola-6800
Option (C)
Z-80
Option (D)
None of the above
Correct Option:
C
Question:-
Option (A)
It allows higher bit densities and also cost effective
Option (B)
It is easy to fabricate
Option (C)
Its higher-impedance
Option (D)
Its operational speed
Correct Option:
A,B,C