# Bca Questions

**Topics:**Computer, Computer program, Read-only memory

**Pages:**25 (4640 words)

**Published:**January 4, 2013

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. Mintermx’y’z Maxtermx+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.

5.8 Answers to...

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