Which of the following are components of the central processing unit (CPU)?
Registers, read only memory (ROM) and cache
Registers, read only memory (ROM) and arithmetic logic unit (ALU)
Registers, cache and arithmetic logic unit (ALU)
Which central processing unit (CPU) component makes logical decisions?
Control unit (CU)
Cache
Arithmetic logic unit (ALU)
What is a register?
A small amount of high speed memory contained within the processor
A small part of the cache
A small computer that forms part of a larger system
What is the name of the cycle that a CPU follows to run instructions and process data?
The data cycle
Fetch-execute-decode
Fetch-decode-execute
Which register holds the address of the next instruction to be fetched from memory?
Program counter
Memory address register (MAR)
Current instruction register (CIR)
What is an embedded system?
A system that has many processors
A computer designed to perform more than one task
What is the purpose of secondary storage?
To hold data and programs that are currently in use
To store data and programs long-term
To extend RAM
Which type of computers usually have no need for secondary storage?
Embedded computers
General purpose computers
Tablet computers
Which of these characteristics makes solid state storage especially suited to portable devices?
Low power consumption
High-speed data access
Long lifespan
In terms of memory, what does volatile mean?
The memory retains its contents when the power is removed
The memory can be overwritten
The memory loses its contents when the power is removed