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Tenth Grade (Grade 10) PC Basics Questions

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Grade 10 PC Basics
Grade 10 PC Basics
Which of the following is the correct logical expression for the sum of a 2-bit binary adder?
  1. Sum S = (A AND B) OR ((NOT A) AND (NOT B))
  2. Sum S = ((NOT A) AND B) OR (A AND (NOT B))
  3. Sum S = ((NOT A) OR B) AND (A OR (NOT B))
Grade 10 PC Basics
What is the Boolean expression of the circuit shown?
  1. X = (A˅B) ^ (C^D)
  2. X = (A˅B) ^ (C˅D)
  3. X = (A^B) ˅ (C^D)
  4. X = (A^B) ˅ (C˅D)
Grade 10 PC Basics
When is the output (X) of gate 3 FALSE?
  1. A=1, B=0, C=1 and D=1
  2. A=1, B=1, C=0 and D=1
  3. A=1, B=1, C=0 and D=0
  4. A=1, B=0, C=0 and D=0
Grade 10 PC Basics
In which phase(s) of software development is(are) programming, testing and documentation done?
  1. Implementation
  2. Evaluation
  3. Maintenance
  4. Implementation and Maintenance
Grade 10 PC Basics
Which of the following is NOT a function of Editor used in IDEs?
  1. Checks errors
  2. Indentation
  3. Provides different colors for variables
  4. Improves readability of the code
Grade 10 PC Basics
Which of the following is FALSE about compilers?
  1. It translates a program written in a high-level language into machine code
  2. A compiled code can be used multiple times without recompilation.
  3. In case an error is found in a line, the compiler prompts the user to correct the error.
  4. It optimizes the code.
Grade 10 PC Basics
To which register(s) is instruction copied in the fetch process?
  1. MDR only
  2. To MDR first and then, to CIR
  3. To MDR first and then, to PC
  4. MAR only
Grade 10 PC Basics
Which of the following operations are NOT performed by the Arithmetic and logic unit?
  1. Addition, subtraction and multiplication
  2. READ and WRITE operation
  3. AND, OR and NOT
Grade 10 PC Basics
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