Seiyun University CS Department Information
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Seiyun University CS Department Information

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Questions and Answers

What is the product of multiplying two single-bit numbers 1 and 1 in a binary system?

  • 1 (correct)
  • 11
  • 0
  • 10
  • What is the first step in converting a decimal number to any radix number?

  • Successive division method (correct)
  • Successive multiplication method
  • Conversion of the fractional part
  • Conversion of the integer part
  • What method is used to convert the fractional part of a decimal number to any radix number?

  • Successive division method
  • Successive addition method
  • Successive multiplication method (correct)
  • Successive subtraction method
  • What is the result of multiplying two single-bit numbers 0 and 1 in a binary system?

    <p>0</p> Signup and view all the answers

    What is the purpose of the successive division method in radix conversion?

    <p>To convert the integer part of a decimal number</p> Signup and view all the answers

    How many steps are involved in converting a decimal number to any radix number?

    <p>2</p> Signup and view all the answers

    What is the result of multiplying two single-bit numbers 1 and 0 in a binary system?

    <p>0</p> Signup and view all the answers

    What is the method used to convert the integer part of a decimal number to any radix number?

    <p>Successive division method</p> Signup and view all the answers

    What is the purpose of the successive multiplication method in radix conversion?

    <p>To convert the fractional part of a decimal number</p> Signup and view all the answers

    What is the result of multiplying two single-bit numbers 0 and 0 in a binary system?

    <p>0</p> Signup and view all the answers

    Study Notes

    Introduction to Number Systems

    • Digital logic systems can perform numerical computations using a binary number system.
    • Humans use the decimal system, but digital machines use binary due to the availability of two-state devices (transistors).
    • Other number systems used in conjunction with programmable logic devices include hexadecimal.

    Characteristics of Numbering Systems

    • Digits are consecutive.
    • The number of digits equals the base size.
    • Zero is always the first digit.
    • The base number is never a digit.
    • When 1 is added to the largest digit, a sum of zero and a carry of one results.

    Significant Digits

    • Most significant digit (MSD) and least significant digit (LSD) are important concepts in number systems.

    Binary Number System

    • Also known as the Base 2 system.
    • Used to model electrical signals in computers.
    • 0 represents no voltage or an off state, and 1 represents presence of voltage or an on state.

    Binary Numbering Scale

    • Each positional value is a power of 2.

    Binary Addition

    • There are 4 possible binary addition combinations.

    Decimal to Binary Conversion

    • The easiest way to convert a decimal number to binary is using the Division Algorithm.
    • This method repeatedly divides a decimal number by 2 and records the quotient and remainder.

    Binary to Decimal Conversion

    • The easiest method for converting a binary number to decimal is using the Multiplication Algorithm.
    • Multiply the binary digits by increasing powers of 2, starting from the right, and sum the products.

    Octal Number System

    • Also known as the Base 8 System.
    • Uses digits 0-7.
    • Readily converts to binary.
    • Groups of three binary digits represent each octal digit.

    Decimal to Octal Conversion

    • Convert a decimal number to octal by repetitively dividing by 8 and recording the remainder.

    Octal to Decimal Conversion

    • Convert an octal number to decimal by multiplying each digit by its positional value and summing the products.

    Octal to Binary Conversion

    • Each octal digit converts to 3 binary digits.

    Hexadecimal Number System

    • Base 16 system.
    • Uses digits 0-9 and letters A-F.
    • Each hexadecimal digit represents 4 binary digits.

    Decimal to Hexadecimal Conversion

    • Convert a decimal number to hexadecimal by repetitively dividing by 16 and recording the remainder.

    Hexadecimal to Decimal Conversion

    • Convert a hexadecimal number to decimal by multiplying each digit by its positional value and summing the products.

    Binary to Hexadecimal Conversion

    • Use a substitution code to convert binary to hexadecimal.

    Complementary Arithmetic

    • 1's complement: switch all 0's to 1's and 1's to 0's.
    • 2's complement: find the 1's complement and add 1.

    Signed Numbers

    • Need to represent both positive and negative numbers.

    • Three representations: signed magnitude, signed 1's complement, and signed 2's complement.### Binary Operations

    • Rules for adding two single-bit numbers:

      • A=0, B=0: Sum=0, Carry=0
      • A=0, B=1: Sum=1, Carry=0
      • A=1, B=0: Sum=1, Carry=0
      • A=1, B=1: Sum=0, Carry=1
    • Rules for subtracting two single-bit numbers:

      • A=0, B=0: Difference=0, Borrow=0
      • A=0, B=1: Difference=1, Borrow=1
      • A=1, B=0: Difference=1, Borrow=0
      • A=1, B=1: Difference=0, Borrow=1

    Binary Multiplication

    • Rules for multiplying two single-bit numbers:
      • A=0, B=0: Product=0
      • A=0, B=1: Product=0
      • A=1, B=0: Product=0
      • A=1, B=1: Product=1

    Conversion of Decimal Numbers to Any Radix Number

    • Conversion of decimal numbers to any radix number involves two steps:
      • Step 1: Convert the integer part using successive division method
      • Step 2: Convert the fraction part using successive multiplication method

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    Quiz about Seiyun University's College of Applied Science, CS department, covering information technology and faculty details.

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