Question Bank

COMPUTER ORGANIZATION
FILL IN THE BLANKS:

1. The full form of EBCDIC is -------------.Extended binary Coded Decimal interchanges Code
2. 1 + x = --------.
1
3. ---------- type of materials used in second generation.
Transistor
4. A. (A+B) = -----------.
A
5. Hexa decimal of 13 is ----------.
D
6. ---------------- memory is placed in between main memory and CPU.
Cache
7. To remove a file in DOS ------------ command is used.
Del
8. Magnetic is -------------- type memory.
Secondary
9. A computer cannot boot, if it does not have the --------------.
Operating Systems
10. The communication line between the CPU, memory and other devices is called -------------.
Bus
11. A set of related data written is called --------------.
Record
12. The capacity of currently used floppy disk is -------------.
1.44 MB
13. Step by step instruction is called --------------.
Program
14. The full form of OLE is -------------.
Object Linking and Embedding
15. Extension of text file is ------------.
.Txt
16. Magnetic tape contain ------------- and ---------------.
Track, sector
17. -------------- Command is used to divide track and sector.
Format
18. Disk partition command is -----------.
Fdisk
19. NAND and NOR are called -----------.
Universal gate
20. IBM stands for -------------.
International Business Machines
21. First generation computers use --------------.
Vacuum tubes
22. To convert a 7 bit ASCII to BCD we delete -----------.
Zone bit
23. To represent data internally in micro computers ------------- code is used.
ASCII
24. ASCII- 7 bits, a 7 bit code that allows ------------ characters.
128
25. The method of subtraction by an addition approach is known as -------------.
Complementary subtraction
26. A NOT gate is also known as -------------.
Invertor
27. If 2 NAND gates are connected in series A is the input then the output is -----------.
A
28. A hardware device for interfacing telephone line and computer equipment is called ------------.
Modem
29. Loading and removing error in a computer is called -------------.
Debugging
30. A system that processes two or more program is called -------------.
Multiprogramming
31. -------------- holds the address of the active memory location.
MAR
32. The MAR stands for ------------.
Memory Address Register
33. The tape is divided into vertical columns called -------------.
Frames
34. The time required to position the head over the proper track is called -------------.
Seek time
35. MBM stands for -------------.
Magnetic Bubble memory
36. ---------------- is used to indicate the flow of operation.
Flow Line
37. The process of writing such program instruction for an analyzed problem is called --------------.
Coding
38. ISAM stands for -------------.
Index sequential Access Method
39. Arranging data in a particular order is known as -----------.
Sorting
40. --------------- is a digital circuit that converts information into coded form.
Encoder
41. -------------- Method is a graphical technique for simplifying Boolean function.
Carnage map
42. The most common error detection code is ------------.
Parity
43. A memory that requires refreshing of data is -----------.
Dynamic RAM
44. A software that converts a high level language program to binary is --------------.
Compiler
45. ------------ is a self complementary code.
Excess-3 code
46. Carry in a half adder can be obtained using -------------.
AND gate
47. Cache memory is used in a computer system to ------------.
Speed up memory access
48. In Boolean Algebra, A+ A’ = --------------.
1
49. -------------- is a general purpose processing register.
Accumulator
50. Stored program concept was introduced by -------------.
Von Neumann
51. A group of 4 bits is called ------------.
Nibble
52. ___________ is an interconnection of automatic computer.
Network
53. When you delete an object, Windows send it to the -----------.
Recycle bin
54. ------------ is a pictorial representation of algorithm.
Flow Chart
55. In Windows NT, NT stands for ------------.
New Technology
56. A program execution is usually called -----------.
Process
57. ------------- Computer is a combination of Analog and Digital computer.
Hybrid
58. Restarting a computer is called -------------.
Warm BOOTING
59. -------------- is a networks of networks.
Internet
60. The type of PROM that can be erased electrically is called -----------.EEPROM
STATE WHETHER TRUE OR FALSE:
1. A computer is a very slow device.
False
2. A command given to the computer is called instruction.
True
3. The person who deals with the computer and its management put together is called firmware.
False
4. Digital computers are used for counting purpose.
True
5. A mini computer is the smallest general purpose computer.
False
6. PARAM 2000 is a super computer.
True
7. First generation is very large in size.
True
8. The read and write memory of a computer is called ROM.
False
9. A communication satellite is essentially in micro wave link repeater.
True
10. PC holds the address of the data which is to be executed next.
True
11. Stack pointer is not a sequence of memory locations defined by the user.
False
12. Control bus is a group of lines used for the purpose of data flow.
False
13. A stack can be placed in a portion of a large memory.
True
14. LIFO is a stack organization.
True
15. ROM is a volatile memory.
False
16. 1011-1001-1001 = -0011.
False
17. Grey value of (10110)2 is 11101.
True
18. EBCDIC was represent by 256 characters.
True
19. 9’s complement of 86 is 14.
False
20. Sum of product form of a logical expression is in canonical form. Each product term is called MINTERM.
True
21. The basic circuit for storing information in a digital machine is called flip-flop.
True
22. Registers are digital circuits used for permanent storage and shifting of information.
False
23. In shift register, the output of each flip-flop is not connected to the input of the adjacent flip-flop.
False
24. There are only three types of shift registers.
False
25.
True
26. Fetch cycle is also a type of instruction cycle.
True
27. The register that holds address for the stack is called a stack pointer.
True
28. The operation of insertion is called pop.
False
29. The operation of deletion is called push.
False
30. OPR stands for Opcode Register.
True
31. PROM can be erasable.
False
32. A website is an individual page.
False
33. The satellite acts as a reflector.
True
34. In white box testing, the code itself is tested, without considering the specifications.
True
35. A word always contains an even numbers only.
False
36. Verification is the process of checking that all has been specify the user actually wanted.
False
37. A computer can store and recall any amount of information as long as desired by the user.
True
38. The memory is the brain of the computer.
False
39. Machine language is easy to modify.
False
40. Assembly language is easily understandable.
True
41. 100111+11011 = 1001010.
False
42. 10101-1110 = 00111.
True
43. The decimal value of 110101.11 is 53.7510.
True
44. ASCII 7 is a type of ASCII.
True
45. EBCDIC is a 4 bit code used for the internal representation of characters.
False
46. The flag register carry indicates whether the result contains odd number or even number.
False
47. In flip-flop the High is also called reset.
False
48. Keyboard is an input device.
\ True
49. Basic is a programming language.
True
50. The hard disk can be transferred from one place to another.
True
51. The capacity of floppy disk is 1.44MB.
True
52. Ripple is a two bit asynchronous binary counter.
True
53. Implicit addressing is also called inherent addressing.
True
54. In direct access file, addition and deletion of record is very complicated.
False
55. A key field is a unique field in a record used to identify one record from another.
True
56. In sequential file updation is not easy.
True
57. Computer can understand only machine language.
True
58. CPU stands for central programming unit.
False
59. Hybrid is a generation of computers.
False
60. DRAM has higher speed.
False

SHORT QUESTIONS:

1. Explain Register transfer Language.
2. Explain the truth table for AND , OR.
3. Briefly explain the evolution of computers.
4. Explain the differences between:
a) Gates and Multiplexers
b) Decoders and Encoders
5. Convert the following:
Binary to Hexa
a) 11101101 b) 101101011
Hexa to Binary
a) F7E b) ABC

6. Explain the characteristics of data.
7. What is software testing? Explain any four types of testing methods.
8. Differentiate between LAN and WAN.
9. Explain about satellite communication.
10. What is the concept of Internet?
11. Define a register. What is the basic use of a register?
12. What is an interrupt? What do you mean by interrupt handler?
13. What is a Flow Chart? What are its uses?
14. What do you mean by debugging?
15. Explain the working of binary counter.
16. Differentiate between sequential access and random access.
17. Explain about Register Indirect mode and direct Address mode.
18. Given the Boolean function F=xy+x’y’+y’z
a) Implement it with only OR and NOT gates.
b) Implement it with only AND and NOT gates.
19. Write about Strobe based and Handshake based communication.
20. Explain about the different addressing modes.
21. Show the logic diagram of a clocked RS flip-flop with four NAND gates.
22. Write short notes on Virtual memory.
23. Difference between A/D and D/A converters.
24. Explain clocked J.K flip-flop with diagrams.
25. Explain TTL.
26. Explain shift-registers.
27. Explain about cache memory.
28. Explain logic gates.
29. Explain code converters.
30. Write short notes on Associative memory.
31. Explain counters.
32. Differentiate Multiplexer and Demulitplexer
33. Explain about Hardware, Software, and Liveware.
34. Explain BCD code with example.
35. Write short notes on programming languages.
36. Write short notes ion ASCII and EBCDIC.
37. Convert the following:
Binary to Decimal
a) (11010.11)2 b) (1011101)2
Octal to Binary
a) (72)8 b) (45)8
38. Write short notes on different types of memory.
39. Explain the working of a binary counter.
40. Write notes on JK flip flop.
41. Write notes on Decoder.
42. Write notes on Encoder.
43. Explain the different accessing methods.

44. Write notes on different I/O devices.
45. Explain about different types of computers.
46. Differentiate between system software and application software.
47. Convert (100011)2 to octal number system.
48. Write any two micro operations with examples.
49. Differentiate between shift register counter and ring counter.
50. Explain about the following different latches.
Gated S-R Latch with diagram
Gated D Latch with diagram.
51. Write notes on MS-JK flip flop.
52. Write short notes on interrupts.
53. What are the techniques or methods of data processing.
54. Explain difference between gates and multiplexer.
55. Explain register transfer language.

ESSAYS:

1. Design a counter that counts the decimal digits according to the 2,4,2,1 code. Use T flip-flops.
2. Explain with a neat sketch the basic organization of micro programmed controller.
3. Write short notes on :
a) Cache memory b) Virtual memory
4. Explain the architecture of a simple processor.
5. Explain the different gates with neat diagram.
6. Explain the organization of a digital computer.
7. Explain about MAN, LAN, WAN.
8. Explain about Internet and its uses.
9. Explain about satellite communication and geosynchronous satellite.
10. Explain about the following:
a) Indexed sequential access
b) Direct access
c) Indirect or sequential access
11. Explain the following types of addressing modes.
a) Register mode
b) Implied mode
c) Register Indirect mode
d) Direct Address mode
12. Explain File organization and access methods.
13. Explain logic gates. Also explain their functioning along with their truth tables.
14. What is micro operation? Explain the different categories of micro operations with example.
15. Explain about:
1) Multiplexer and Demultiplexer
2) Explain the function of encoder and decoder
16. Simply the following Boolean Function? Using Karnaugh map?
a) Y(A,B,C,D)= (01,2,3,5,6,7,8,9,10,11,12,13,14,15)
b) Y(A,B,C,D)= (1,5,7,8,9,10,11,12,13,14,15)
17. Explain about RAM and ROM.
18. Explain about structured programming.
19. Explain about different types of flip-flops.
20. Explain about different types of printers and scanners.
21. Explain about instructions. Also different types of instructions.
22. Explain about generation of computers.
23. Explain the functional units of a computer with diagram.
24. Explain about:
i) Barcode Reader
ii) Line printers
ii) Different types of plotters.
25. Explain about Latches.
26. Explain about programming languages.
27. Explain about various registers.
28. Explain about structured programming and its various stages.
29. What are the data transfer instructions? Explain the POP and PUSH instructions with examples.
30. What is a mean by a processor? What are the functions of CPU? Explain in detail.