# Bca Questions

Topics: Computer, Computer program, Read-only memory Pages: 25 (4640 words) Published: January 4, 2013
BCA SEM I / BCA 1040 / Unit 1 Logic Design

Self Assessment Questions 1.2
1. Decimal means base __________.
2. The decimal value of the bit pattern 11111111 is _________. 3. The range of values represented by an 8-bit binary number is _____. 4. The binary equivalent of 228 is _________.
5. The result of 7 – 2 using 1’s complement notation is
6. The bit pattern 1011 in 1’s complement notation is
7. The result of 7 – 2 using 2’s complement notation is
8. The bit pattern 1110 in 2’s complement notation is
9. The range of numbers that can be represented using the Excess-2N-1 notation is _________.
10. The significant digits of 0012340 are _______.
11. The bit pattern 1101 Excess Number converted value is ________. Answers to Self Assessment Questions 1.2
1. 10
2. 255
3. 0 to 255.
4. 228
5. (144)8
6. (0.0100)2
7. (B A 3 .2)16
8. 0100
9. – 4
10. 0101
11. – 2
12. 2N–1– 1 to – 2N – 1
13. 0012340
14. 13

============================================================================ BCA SEM I / BCA 1040 /Unit2 Boolean Algebra
Self Assessment Questions 2.2
1. If x,y,z contains values 0,1,1 then (x+z)y is _______.
2. x+y.0 is ____________ Law.
3. x+1 =1 is __________ Law.
Self Assessment Questions 2.3
1. Boolean product for 1 and 0 in AND has ____ value.
2. Boolean product for 1 and 0 in OR has _____ value.
3. Postulate P3 indicates _________.
Self Assessment Questions 2.4
1. The NAND Gate output for input values 0 and 1 is _______ . 2. The NOR Gate output for input values 1 and 0 is _______.
3. NOR is a ___________ complete operation
4. Draw a logic circuit for AB + AC
5. Draw a logic circuit for (A B) (C + D)C.
Self Assessment Questions 2.5

1. The XOR or Mod-2 addition operation is defined by the equation is _________.
2. Exclusive NOR is defined as __________.

2.9 Answers to Self Assessment Questions
Answers to Self Assessment Questions 2.2
1. 1
2. Commutative
3. Dominance
Answers to Self Assessment Questions 2.3
1. 0
2. 1
3. The • and + operators are commutative
Answers to Self Assessment Questions 2.4
1. 1
2. 0
3. Functionally
4.

Answers to Self Assessment Questions 2.5
1. A B AB AB
2. NOT of (A XOR B)

BCA SEM I / BCA 1040 /Unit3 Techniques for Simplifying Boolean Expressions

Self Assessment Questions 3.2
1. If x and y is 0 and 1, the Boolean function xy+xy’ result is ____. 2. A minterm has a value ___ if and only if all the values of its variables are 1.
3. If x,y,z are 0,0,1 the minterm is ______ and maxterm is_______.

Self Assessment Questions 3.3
1. Implicants that cover as many cells of the map as possible are called __________.
2. Simple functions are called ___________.

Self Assessment Questions 3.4
1. Step 2 is __________________.
2. Step D in don’t cares _____________.
3.8 Answers to Self Assessment Questions
Answers to Self Assessment Questions 3.2
1. 0
2. 1
3. Mintermx’y’z Maxtermx+y+z’
Answers to Self Assessment Questions 3.3
1. Prime implicants
2. Product functions
3. 2-dimensional
Answers to Self Assessment Questions 3.4
1. Translate to minterms in binary notation if not given in binary minterm form.
2. Select the column in which a specific minterm is only covered by one prime implicant. The minterm 0011 is an example. Mark 0-1- prime

BCA SEM I / BCA 1040 /Unit4 Combinational Circuits

4.9 Answers to Self Assessment Questions
Answers to Self Assessment Questions 4.3
1. 3
2. AND
3. Two
4. N
5. One input
6. Single
Answers to Self Assessment Questions 4.4
1. One
2. i
Answers to Self Assessment Questions 4.5
1. four
2. two
3. 0001 0001
Answers to Self Assessment Questions 4.6
1. -------------------------------------------------
Biased

BCA SEM I / BCA 1040 /Unit5 Sequential Circuits and Applications

5.7 Terminal Questions
1. Define Sequential Circuits.
2. Draw and explain the working of JK, S-R, D Flip-Flop.
3. Write a short note on J-K Master Slave Flip-Flop.