N5 Computer Systems

What performs calculations and logical decisions?

• Arithmetic Logic Unit (ALU)

• Control Unit

• Registers

• Buses

What are temporary storage locations in the processor?

• Arithmetic and Logic Unit

• Control Unit

• Registers

• Buses

What is responsible for managing the clock, read, write, reset and interrupt lines

• Control Unit

• Arithmetic and Logic Unit

• Registers

• Buses

Which bus transfers data between the processor and the memory?

• Data

• Address

Which bus holds the address in memory that the processor is accessing?

• Address

• Data

How is data represented on a computer?

• Binary

• English

• Elvish

• Klingon

How is a vector graphic stored?

• Objects and attributes

• Grid of pixels

How is a bit-mapped graphic stored?

• Objects and attributes

• Grid of pixels

• Each pixel is assigned a binary value

Which of the following are ways to reduce the environmental impact?

• Shut down computer when not in use

• Reduce brightness settings on the monitor

• Power down settings

• Use a laptop as it requires less power

What protects against unauthorised access to a computer system?

• Firewall

• Encryption