SST Yr9 - NCCE - Computer Systems

Question 1: Identify the following logic gate:

• A – OR
• B – NOT
• C – AND
• D – XOR

Question 2: Identify the following logic gate:

• A – NOT
• B – XOR
• C – OR
• D – AND

Question 3: What is the Boolean expression for this truth table?

• A: Z = A AND B
• B: Z = A AND NOT B
• C: Z = A OR B
• D: Z = A XOR B

Question 4: What is the Boolean expression for the following logic circuit?

• A: Z = A AND (NOT B)
• B: Z = A OR (NOT B)
• C: Z = (NOT A) AND B
• D: Z = (NOT A) OR B

Question 5: Identify the device that acts as a switch inside a computer?

• A: Resistor
• B: Transistor
• C: Processor
• D: Jumper

Question 6: Identify the correct truth table for an AND gate.

• A:
• B:
• C:
• D:

Question 7: What number base is binary?

• A: Base 10
• B: Base 2
• C: Base 16
• D: Base 32

Question 8: What is the name given to the component inside a computer that is often known as the ‘brain of the computer’?

• A: Processor
• B: Memory
• C: Hard Drive
• D: Power Supply

Question 9: What is the term given to the speed a computer fetches, decodes and executes an instruction?

• A: Cache speed
• B: Hard drive speed
• C: Clock speed
• D: RAM speed

Question 10: Jasmin is a wedding photographer who needs to store a large number of high-definition photographs on a portable media. Identify the most appropriate storage device for Jasmin to use

• A: SD Card
• B: DVD
• C: Internal hard disk drive
• D: Magnetic tape