CO- Question Paper- I

  

Computer Organizations

Question Paper- I

 

MCQs (Components of a Computer)

1. The brain of a computer is the:
A) Memory
B) Processor
C) Input unit
D) Output unit

2. CPU consists of:
A) ALU and CU
B) RAM and ROM
C) Cache and Register
D) Bus and Port

3. ALU performs:
A) Control operations
B) Arithmetic and logical operations
C) Input operations
D) Storage operations

4. CU stands for:
A) Central Unit
B) Control Unit
C) Compute Unit
D) Core Unit

5. Which memory is fastest?
A) RAM
B) ROM
C) Cache
D) Hard Disk

6. Registers are located in:
A) Main memory
B) Secondary memory
C) CPU
D) I/O unit

7. Which is volatile memory?
A) ROM
B) Flash
C) RAM
D) DVD

8. Which is non-volatile memory?
A) RAM
B) Cache
C) ROM
D) Register

9. Input devices are used to:
A) Store data
B) Enter data
C) Process data
D) Display data

10. Output devices are used to:
A) Show results
B) Input data
C) Process data
D) Control CPU

11. Which is an input device?
A) Monitor
B) Printer
C) Keyboard
D) Speaker

12. Which is an output device?
A) Mouse
B) Scanner
C) Printer
D) Keyboard

13. Which memory is closest to CPU?
A) Secondary memory
B) Cache memory
C) Optical memory
D) Magnetic memory

14. Instruction execution is controlled by:
A) ALU
B) CU
C) RAM
D) Register

15. Main memory is also called:
A) Primary memory
B) Secondary memory
C) Virtual memory
D) Backup memory

16. Which is secondary memory?
A) RAM
B) Cache
C) Hard disk
D) Register

17. Computer architecture deals with:
A) Programmer visible features
B) Hardware wiring
C) Chip layout
D) Assembly process

18. Computer organization deals with:
A) Instruction set
B) Implementation details
C) Programming syntax
D) Algorithms

19. ISA stands for:
A) Instruction Set Architecture
B) Internal System Access
C) Integrated Storage Area
D) Instruction Storage Array

20. Which affects program behavior directly?
A) Organization
B) Architecture
C) Packaging
D) Cooling

21. Microarchitecture is related to:
A) Organization
B) Architecture
C) Software
D) Input

22. Hardware-software interaction happens through:
A) ISA
B) GUI
C) Mouse
D) Printer

23. System bus connects:
A) CPU, memory, I/O
B) Only memory
C) Only CPU
D) Only I/O

24. Data bus carries:
A) Addresses
B) Data
C) Control signals
D) Power

25. Address bus carries:
A) Data
B) Address
C) Instructions
D) Power

26. Control bus carries:
A) Data
B) Address
C) Control signals
D) Instructions

27. Which is NOT part of CPU?
A) ALU
B) CU
C) Register
D) Printer

28. Cache memory is used to:
A) Increase speed
B) Increase storage
C) Print data
D) Input data

29. ROM is mainly used to store:
A) Temporary data
B) Permanent programs
C) Cache
D) Registers

30. Fetch-Decode-Execute cycle is performed by:
A) Monitor
B) CPU
C) Keyboard
D) Printer

31. Program instructions are stored in:
A) Registers
B) Main memory
C) Printer
D) Scanner

32. I/O stands for:
A) Input/Output
B) Internal/Outer
C) Instruction/Output
D) Input/Outer

33. DMA stands for:
A) Direct Memory Access
B) Data Memory Area
C) Direct Machine Access
D) Data Machine Area

34. Which unit performs comparisons?
A) CU
B) ALU
C) Memory
D) I/O

35. Which is firmware stored in?
A) RAM
B) ROM
C) Cache
D) Register

36. Monitor is connected via:
A) Output unit
B) Input unit
C) Memory unit
D) ALU

37. Keyboard sends data through:
A) Output
B) Input
C) Memory
D) Control

38. Organization focuses on:
A) How features are implemented
B) What features are visible
C) Program logic
D) Algorithms

39. Architecture focuses on:
A) Implementation
B) User-visible behavior
C) Wiring
D) Manufacturing

40. CPU speed is measured in:
A) Bytes
B) Hertz
C) Bits
D) Pixels

41. Which memory loses data on power off?
A) ROM
B) RAM
C) Flash
D) Disk

42. BIOS is stored in:
A) RAM
B) ROM
C) Cache
D) Register

43. Peripheral devices are connected through:
A) I/O interface
B) ALU
C) CU
D) Register

44. The smallest storage in CPU is:
A) Cache
B) Register
C) RAM
D) Disk

45. Software communicates with hardware using:
A) Drivers
B) Paint
C) Word
D) Excel

46. Which is NOT an input device?
A) Mouse
B) Scanner
C) Plotter
D) Keyboard

47. Plotter is a:
A) Input device
B) Output device
C) Memory device
D) CPU part

48. Instruction format belongs to:
A) Organization
B) Architecture
C) Wiring
D) Packaging

49. Control signals are generated by:
A) ALU
B) CU
C) RAM
D) Cache

50. Hardware executes instructions given by:
A) Software
B) Printer
C) Monitor
D) Scanner

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PART B — 50 Fill in the Blanks (with Answers)

1. CPU stands for __________.

2. ALU performs __________ operations.

3. CU stands for __________.

4. The brain of the computer is __________.

5. __________ memory is volatile.

6. __________ memory is non-volatile.

7. Cache memory is __________ than RAM.

8. Registers are inside the __________.

9. Keyboard is an __________ device.

10. Monitor is an __________ device.

11. Main memory is also called __________ memory.

12. Hard disk is __________ memory.

13. ISA stands for __________.

14. Architecture is __________ to programmer.

15. Organization is about __________ details.

16. Data bus carries __________.

17. Address bus carries __________.

18. Control bus carries __________.

19. Fetch-Decode-Execute is done by __________.

20. BIOS is stored in __________.

21. DMA stands for __________.

22. Printer is an __________ device.

23. Scanner is an __________ device.

24. Software interacts with hardware through __________.

25. Firmware is stored in __________.

26. The smallest memory unit in CPU is __________.

27. CU controls the __________ of instructions.

28. ALU performs __________ and comparison.

29. I/O stands for __________.

30. Computer organization focuses on __________.

31. Computer architecture focuses on __________ features.

32. Mouse is an __________ device.

33. Speaker is an __________ device.

34. RAM loses data when __________ is off.

35. ROM retains data without __________.

36. Cache is between CPU and __________.

37. Instruction execution cycle starts with __________.

38. Peripheral devices are connected through __________ interfaces.

39. Hardware executes __________.

40. Software provides __________ to hardware.

41. System bus connects CPU, memory and __________.

42. Plotter is used to produce __________ output.

43. Registers store __________ data.

44. Primary memory is directly accessed by __________.

45. Secondary memory is __________ than primary memory.

46. Control Unit generates __________ signals.

47. Arithmetic operations are done in __________.

48. Architecture defines instruction __________.

49. Organization defines hardware __________.

50. Hardware and software meet at __________.

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Number System: Concept of Bit and Byte, types

MCQs (Multiple Choice Questions)

Choose the correct option.

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1. The smallest unit of data in a computer is
A) Byte
B) Bit
C) Nibble
D) Word

2. One byte equals
A) 4 bits
B) 8 bits
C) 16 bits
D) 2 bits

3. A group of 4 bits is called
A) Byte
B) Word
C) Nibble
D) Block

4. Binary number system uses base
A) 2
B) 8
C) 10
D) 16

5. Decimal number system uses base
A) 2
B) 10
C) 8
D) 16

6. Octal number system uses digits
A) 0–1
B) 0–7
C) 0–9
D) 0–F

7. Hexadecimal number system base is
A) 2
B) 8
C) 10
D) 16

8. Hexadecimal uses how many symbols?
A) 2
B) 8
C) 10
D) 16

9. Binary digit is also called
A) Byte
B) Bit
C) Nibble
D) Digit

10. Which is NOT a number system?
A) Binary
B) Decimal
C) Logical
D) Hexadecimal

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11. One nibble equals
A) 2 bits
B) 4 bits
C) 6 bits
D) 8 bits

12. Two nibbles form
A) Bit
B) Byte
C) Word
D) Half word

13. Binary digits are
A) 0–9
B) 0–7
C) 0–1
D) 1–16

14. Decimal digits are
A) 0–9
B) 1–10
C) 0–8
D) 0–7

15. Octal base equals
A) 4
B) 2
C) 8
D) 16

16. Hexadecimal digit after 9 is
A) 10
B) A
C) H
D) X

17. Which system is most used by computers internally?
A) Decimal
B) Binary
C) Octal
D) Hexadecimal

18. Which system is human-friendly?
A) Binary
B) Decimal
C) Hexadecimal
D) Octal

19. Base of hexadecimal
A) 12
B) 2
C) 16
D) 8

20. Bit stands for
A) Binary Integer
B) Binary Digit
C) Basic Integer
D) Byte Unit

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21. A word typically contains
A) Fixed number of bits
B) Only 4 bits
C) Only 8 bits
D) Only 2 bits

22. Which is base-8 system?
A) Octal
B) Binary
C) Decimal
D) Hex

23. Which is base-16 system?
A) Decimal
B) Octal
C) Hexadecimal
D) Binary

24. Binary of digit 1 represents
A) OFF
B) ON
C) Error
D) None

25. Binary of digit 0 represents
A) ON
B) OFF
C) TRUE
D) HIGH

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26. Which is not valid hexadecimal digit?
A) A
B) F
C) G
D) E

27. Number of bits in a nibble
A) 2
B) 4
C) 8
D) 16

28. Number of bits in 2 bytes
A) 8
B) 12
C) 16
D) 32

29. Binary system is also called
A) Base-2 system
B) Base-10 system
C) Base-8 system
D) Base-16 system

30. Decimal system is also called
A) Base-2
B) Base-8
C) Base-10
D) Base-16

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31. Octal uses how many digits?
A) 2
B) 8
C) 10
D) 16

32. Hexadecimal uses letters from
A) A–F
B) A–Z
C) A–H
D) B–G

33. Computer memory is measured in
A) Bits/Bytes
B) Liters
C) Meters
D) Hertz

34. Which is larger?
A) Bit
B) Byte
C) Same
D) None

35. Binary representation of data uses
A) Voltage levels
B) Alphabets
C) Fractions
D) Symbols

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36. Number system with base 8 is
A) Binary
B) Decimal
C) Octal
D) Hex

37. Number system with base 16 is
A) Hexadecimal
B) Octal
C) Decimal
D) Binary

38. A byte can represent how many values?
A) 16
B) 64
C) 256
D) 512

39. Which is base-10 system?
A) Decimal
B) Binary
C) Octal
D) Hex

40. Which is base-2 system?
A) Binary
B) Octal
C) Decimal
D) Hex

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41. A nibble equals
A) Half byte
B) Double byte
C) One word
D) Two words

42. Word length depends on
A) CPU architecture
B) Keyboard
C) Mouse
D) Printer

43. Binary numbers are used because
A) Easy hardware design
B) Colorful
C) Short
D) Fast typing

44. Which system is compact form of binary?
A) Octal/Hex
B) Decimal
C) Roman
D) ASCII

45. Hex digit F equals decimal
A) 14
B) 15
C) 16
D) 13

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46. Hex digit A equals decimal
A) 8
B) 9
C) 10
D) 11

47. Bit values are
A) 0 or 1
B) 1 to 9
C) A to F
D) 0 to 7

48. Storage capacity is commonly measured in
A) Bytes
B) Inches
C) Seconds
D) Pixels

49. 8 bits =
A) Nibble
B) Byte
C) Word
D) Block

50. Example of positional number system
A) Binary
B) Decimal
C) Hexadecimal
D) All of these
=====================================================

 

 Part B — 50 Fill in the Blanks (with Answers)

Fill in the Blanks — Question–Answer Format

1. The smallest unit of data in a computer is ________.

2. A group of 8 bits is called a ________.

3. A group of 4 bits is known as a ________.

4. Bit stands for ________.

5. Binary number system has base ________.

6. Decimal number system has base ________.

7. Octal number system has base ________.

8. Hexadecimal number system has base ________.

9. Binary digits are ________ and ________.

10. Decimal digits range from ________ to ________.

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11. Octal digits range from ________ to ________.

12. Hexadecimal uses digits and letters from ________ to ________.

13. One byte contains ________ bits.

14. Two nibbles make one ________.

15. Computers internally use the ________ number system.

16. Humans mostly use the ________ number system.

17. Base-2 number system is called ________.

18. Base-8 number system is called ________.

19. Base-16 number system is called ________.

20. Hex digit A represents decimal value ________.

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21. Hex digit F represents decimal value ________.

22. A word contains a ________ number of bits depending on CPU.

23. Memory capacity is usually measured in ________.

24. Binary 1 indicates ________ state.

25. Binary 0 indicates ________ state.

26. One nibble equals ________ bits.

27. Two bytes equal ________ bits.

28. Binary system is a ________ number system.

29. Decimal system is also a ________ number system.

30. Hexadecimal is a base-________ system.

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31. Octal is a base-________ system.

32. Binary is a base-________ system.

33. Decimal is a base-________ system.

34. A byte can represent ________ different values.

35. Half of a byte is called a ________.

36. Bit values can only be ________ or ________.

37. Digital circuits use ________ stable states.

38. Hexadecimal uses digits and ________.

39. Number system is used to represent ________.

40. Binary numbers are easy to implement in ________.

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41. Storage unit larger than bit is ________.

42. 16 bits equal ________ bytes.

43. 4 bits equal ________ nibble.

44. Hex digit E equals decimal ________.

45. Hex digit B equals decimal ________.

46. Hex digit C equals decimal ________.

47. Hex digit D equals decimal ________.

48. Data storage is commonly measured in ________.

49. Binary representation uses ________ levels of voltage.

50. All modern computers operate using the ________ number system internally.
===================================================

 

MCQs (Number System & Conversion)

1. The base of Binary number system is:
A) 2 B) 8 C) 10 D) 16

2. Decimal number system has base:
A) 2 B) 8 C) 10 D) 16

3. Octal number system uses digits from:
A) 0–7 B) 0–8 C) 0–9 D) 1–8

4. Hexadecimal number system base is:
A) 2 B) 8 C) 10 D) 16

5. Binary of decimal 5 is:
A) 100 B) 101 C) 110 D) 111

6. Decimal equivalent of binary 1010 is:
A) 8 B) 9 C) 10 D) 12

7. Which is not a binary digit?
A) 0 B) 1 C) 2 D) None

8. Hexadecimal digit after 9 is:
A) A B) B C) C D) F

9. Octal equivalent of binary 111 is:
A) 5 B) 6 C) 7 D) 8

10. Binary equivalent of hex A is:
A) 1010 B) 1001 C) 1100 D) 1110

11. Decimal 16 in binary is:
A) 1000 B) 1001 C) 10000 D) 1111

12. Which system is used internally by computers?
A) Decimal B) Binary C) Octal D) Hex

13. 1 byte equals:
A) 4 bits B) 8 bits C) 16 bits D) 32 bits

14. Decimal 255 in hexadecimal is:
A) EF B) FF C) FE D) F1

15. Binary 1001 equals decimal:
A) 7 B) 8 C) 9 D) 10

16. Octal 10 equals decimal:
A) 8 B) 9 C) 10 D) 2

17. Hex 10 equals decimal:
A) 10 B) 12 C) 14 D) 16

18. Binary to octal conversion groups bits in:
A) 2 B) 3 C) 4 D) 8

19. Binary to hexadecimal conversion groups bits in:
A) 2 B) 3 C) 4 D) 8

20. Decimal 7 in octal is:
A) 7 B) 10 C) 11 D) 6

21. Largest single digit in octal is:
A) 7 B) 8 C) 9 D) F

22. Largest single digit in hex is:
A) 9 B) A C) F D) 15

23. Binary of decimal 1 is:
A) 0 B) 1 C) 10 D) 11

24. Binary 1111 equals hex:
A) E B) D C) F D) 10

25. Decimal 32 in binary is:
A) 100000 B) 10000 C) 11111 D) 10101

26. Base of hexadecimal is power of:
A) 2 B) 4 C) 8 D) 10

27. Which is positional number system?
A) Roman B) Binary C) Tally D) Marks

28. Decimal 64 in binary is:
A) 1000000 B) 100000 C) 111111 D) 110000

29. Octal 17 equals decimal:
A) 13 B) 15 C) 16 D) 17

30. Hex F equals decimal:
A) 14 B) 15 C) 16 D) 13

31. Binary equivalent of octal 7 is:
A) 111 B) 110 C) 101 D) 100

32. Decimal 10 in hex is:
A) A B) B C) C D) D

33. Binary of decimal 12 is:
A) 1010 B) 1100 C) 1110 D) 1001

34. Hex 1A equals decimal:
A) 24 B) 25 C) 26 D) 27

35. Octal 20 equals decimal:
A) 14 B) 16 C) 18 D) 20

36. Decimal to binary uses:
A) Multiplication by 2
B) Division by 2
C) Addition
D) Subtraction

37. Fractional decimal to binary uses:
A) Divide by 2
B) Multiply by 2
C) Divide by 8
D) Multiply by 8

38. Binary digits are called:
A) Bytes B) Bits C) Nibbles D) Words

39. 4 bits make:
A) Byte B) Nibble C) Word D) Double word

40. Hex to binary conversion uses grouping of:
A) 2 bits B) 3 bits C) 4 bits D) 8 bits

41. Decimal 3F (hex) equals:
A) 63 B) 65 C) 61 D) 62

42. Binary 110 equals decimal:
A) 5 B) 6 C) 7 D) 4

43. Decimal 9 in octal is:
A) 10 B) 11 C) 12 D) 9

44. Octal to binary uses grouping of:
A) 2 B) 3 C) 4 D) 5

45. Binary 100000 equals decimal:
A) 16 B) 32 C) 64 D) 128

46. Decimal 128 in binary is:
A) 10000000 B) 1111111 C) 1000000 D) 1010101

47. Hex C equals decimal:
A) 10 B) 11 C) 12 D) 13

48. Binary system is also called:
A) Base-8 system
B) Base-2 system
C) Base-10 system
D) Base-16 system

49. Decimal 0 in binary is:
A) 0 B) 1 C) 10 D) None

50. Number system using symbols A–F is:
A) Octal B) Binary C) Hexadecimal D) Decimal

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✅ PART 2 — 50 Fill in the Blanks (with Answers)

1. Binary number system has base ______.

2. Decimal number system has base ______.

3. Octal system has base ______.

4. Hexadecimal system has base ______.

5. Binary uses digits ______ and ______.

6. Octal digits range from ______ to ______.

7. Hex digits range from 0–9 and ______ to ______.

8. One byte equals ______ bits.

9. Four bits are called a ______.

10. Binary of decimal 8 is ______.

11. Decimal of binary 101 is ______.

12. Hex A equals decimal ______.

13. Hex F equals decimal ______.

14. Octal 10 equals decimal ______.

15. Binary to octal grouping is done in ______ bits.

16. Binary to hex grouping is done in ______ bits.

17. Decimal to binary conversion uses repeated ______ by 2.

18. Fractional decimal to binary uses repeated ______ by 2.

19. Binary 111 equals decimal ______.

20. Decimal 15 in hex is ______.

21. Decimal 16 in hex is ______.

22. Binary 1001 equals decimal ______.

23. Octal 7 equals binary ______.

24. Hex 1F equals decimal ______.

25. Decimal 32 in binary is ______.

26. Base of a number system is also called its ______.

27. Computers understand only ______ numbers.

28. Decimal 0 in binary is ______.

29. Largest octal digit is ______.

30. Largest hex digit is ______.

31. Decimal 64 in binary is ______.

32. Binary 1100 equals decimal ______.

33. Hex C equals decimal ______.

34. Octal 11 equals decimal ______.

35. Binary 10 equals decimal ______.

36. Decimal 2 equals binary ______.

37. Hex 20 equals decimal ______.

38. Octal to binary conversion replaces each digit with ______ bits.

39. Hex to binary conversion replaces each digit with ______ bits.

40. Binary numbers are positional number system with base ______.

41. Decimal 255 in hex is ______.

42. Binary 1111 equals hex ______.

43. Decimal 9 in octal is ______.

44. Decimal 10 in binary is ______.

45. Hex B equals decimal ______.

46. Binary 10000 equals decimal ______.

47. Decimal 3 equals binary ______.

48. Octal 20 equals decimal ______.

49. Each position weight in binary is power of ______.

50. Each position weight in decimal is power of ______.

=========================================================

MCQs (1’s & 2’s Complement Numerical)

1. The 1’s complement of binary 101010 is
A) 010101
B) 101011
C) 010110
D) 001010

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2. The 2’s complement of 101010 is
A) 010101
B) 010110
C) 101011
D) 010100

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3. 1’s complement of 11110000 is
A) 00001111
B) 00011111
C) 11110001
D) 01110000

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4. 2’s complement of 11110000 is
A) 00001111
B) 00010000
C) 11110001
D) 00001110

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5. 1’s complement of 0000 is
A) 0000
B) 1111
C) 0011
D) 1100

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6. 2’s complement of 0000 is
A) 0001
B) 1111
C) 0000
D) 1000

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7. 1’s complement of 1101 is
A) 0010
B) 1010
C) 0101
D) 0110

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8. 2’s complement of 1101 is
A) 0010
B) 0011
C) 0100
D) 1110

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9. The 2’s complement method is mainly used for
A) Addition only
B) Subtraction
C) Multiplication
D) Division

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10. 1’s complement of 01010101 is
A) 10101010
B) 01010110
C) 11010101
D) 10001010

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11. 2’s complement of 01010101 is
A) 10101010
B) 10101011
C) 11010101
D) 00101011

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12. 1’s complement of 11111111 is
A) 00000000
B) 11111110
C) 10000000
D) 00001111

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13. 2’s complement of 11111111 is
A) 00000000
B) 00000001
C) 11111110
D) 10000001

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14. To get 2’s complement you
A) Add 1 to original
B) Subtract 1 from 1’s complement
C) Add 1 to 1’s complement
D) Reverse bits only

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15. 1’s complement of 10000000 is
A) 01111111
B) 11111111
C) 00000000
D) 10000001

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16. 2’s complement of 10000000 is
A) 01111111
B) 10000000
C) 01111110
D) 11111111

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17. 1’s complement of 00110110 is

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18. 2’s complement of 00110110 is

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19. 1’s complement of 0100 is

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20. 2’s complement of 0100 is

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21. In 2’s complement system, negative numbers are represented by
A) MSB = 0
B) MSB = 1
C) LSB = 1
D) Even parity

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22. 1’s complement of 101111 is

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23. 2’s complement of 101111 is

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24. 1’s complement of 00011100 is

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25. 2’s complement of 00011100 is

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26. Range of 8-bit 2’s complement numbers is
A) 0 to 255
B) −128 to +127
C) −127 to +128
D) −255 to +255

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27. 1’s complement of 0110 is

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28. 2’s complement of 0110 is

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29. 2’s complement of a number equals original when number is
A) All 1s
B) All 0s
C) Alternating
D) Prime

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30. 1’s complement flips
A) MSB only
B) LSB only
C) All bits
D) None

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31–50 Quick Numeric MCQs

31. 1’s comp(1100) =
32. 2’s comp(1100) =
33. 1’s comp(0010) =
34. 2’s comp(0010) =
35. 1’s comp(1110) =
36. 2’s comp(1110) =
37. 1’s comp(010010) =
38. 2’s comp(010010) =
39. 1’s comp(101001) =
40. 2’s comp(101001) =
41. 1’s comp(00010101) =
42. 2’s comp(00010101) =
43. 1’s comp(11101010) =
44. 2’s comp(11101010) =
45. 1’s comp(1001) =
46. 2’s comp(1001) =
47. 1’s comp(0111) =
48. 2’s comp(0111) =
49. 1’s comp(10101010) =
50. 2’s comp(10101010) =

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✅ PART B — 50 Fill in the Blanks (with Answers)

1. 1’s complement of 1010 =

2. 2’s complement of 1010 =

3. 1’s complement of 1111 =

4. 2’s complement of 1111 =

5. 1’s complement of 0001 =

6. 2’s complement of 0001 =

7. 1’s complement of 110011 =

8. 2’s complement of 110011 =

9. 1’s complement flips ----

10. 2’s complement =

11. 1’s complement of 010101 =

12. 2’s complement of 010101 =

13. 1’s complement of 0011 =

14. 2’s complement of 0011 =

15. 1’s complement of 1000 =

16. 2’s complement of 1000 =

17. Range of 4-bit 2’s complement =

18. Range of 8-bit 2’s complement =

19. MSB 1 indicates --------number

20. MSB 0 indicates -------- number

21. 1’s complement of 01101100 =

22. 2’s complement of 01101100 =

23. 1’s complement of 101010 =

24. 2’s complement of 101010 =

25. 1’s complement of 000000 =

26. 2’s complement of 000000 =

27. 1’s complement of 111000 =

28. 2’s complement of 111000 =

29. 1’s complement of 0100 =

30. 2’s complement of 0100 =

31. 1’s complement of 1011 =

32. 2’s complement of 1011 =

33. 1’s complement of 11000011 =

34. 2’s complement of 11000011 =

35. Complement system simplifies binary ----------------

36. 1’s complement of 00101010 =

37. 2’s complement of 00101010 =

38. 1’s complement of 01111000 =

39. 2’s complement of 01111000 =

40. 1’s complement of 10000001 =

41. 2’s complement of 10000001 =

42. 1’s complement of 010000 =

43. 2’s complement of 010000 =

44. In 2’s complement there is only --------------

45. In 1’s complement there are --------------------

46. 1’s complement of 111100 =

47. 2’s complement of 111100 =

48. 1’s complement of 000011 =

49. 2’s complement of 000011 =

50. Complement arithmetic is used in -----------------

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