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WorksheetsPaper 01 - OCR - 1.1
Total questions: 33
Worksheet time: 17mins
Processors have a speed measured in:
Seconds
Bits
Hertz
Bytes
MPH
Data and instructions are stored in the:
Processor
Embedded System
Hard Disk Drive
Main Memory
Flash Drive
What doesn't affect the performance of the computer?
Clock speed
Number of cores
Cache size
The number of instructions in the program
What is the effect on performance if the number of cores goes from 2 to 4?
Performance decreases
The max number of instructions executed per second doubles
The max number of instructions executed per second quadruples
The max number of instructions executed per second is halved
The max number of instructions executed stays the same
What is the effect on performance if the processing speed goes up from 1GHz to 4GHz?
Performance decreases
The max number of instructions executed per second doubles
The max number of instructions executed per second quadruples
The max number of instructions executed per second is halved
The max number of instructions executed stays the same
What is the effect on performance if the processing speed goes up from 2GHz to 4GHz and cores go from 2 to 4?
Performance decreases
The max number of instructions executed per second doubles
The max number of instructions executed per second quadruples
The max number of instructions executed per second is halved
The max number of instructions executed stays the same
If the processing speed goes up from 1GHz to 4GHz and processor is changed from 8 core to dual core- What if the exact effect on the performance?
Performance decreases
The number of instructions executed per second doubles
The number of instructions executed per second quadruples
The number of instructions executed per second is halved
The number of instructions executed stays the same
Firmware in which software and hardware are integrated on a circuit board is often used in what type of system?
Desktop System
Embedded System
Operating System
Point of Sale System
Artificial Intelligence System
Which is an example of an embedded system?
Laptops
Tablets
PCs
Washing Machine
Processors don't do the following:
Process Data
Execute Instructions
Execute Data
Operate in Hz
Perform calculations
The part of a processor in which instructions are executed is known as?
Core
Centre
Execution
Instruction Centre
What acts as intermediary between the processor and the main memory?
Bus
User
Cache
Clock
ALU
What is held in cache?
All of the programming instructions
Commonly used data and instructions
Instructions that have been processed
Data that hasn't been used for a long time
Firmware refers to:
A combination of hardware and software
Any hardware that can't easily break
A type of software that is updated to make the computer work better
Hardware used in kitchens
Any hardware that only sits inside the computer
What component holds the address of the next instruction?
Memory Address Register
Program Counter
Accumulator
Memory Data Register
CU
Results of calculations are held in the:
Memory Address Register
Program Counter
Accumulator
Memory Data Register
CU
What holds the instruction/data temporarily after it is brought to the processor from the main memory?
Memory Address Register
Program Counter
Accumulator
Memory Data Register
CU
This holds the number of the current instruction being worked on:
Memory Address Register
Program Counter
Accumulator
Memory Data Register
CU
This would perform an operation including the word "AND"
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This would send a signal such as "Memory Read":
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This would perform an operation such as 5+8:
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This would reduce the number of memory/process transfers:
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This sends signals such as "I/O Read":
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This sends signals such as "Memory Write":
Arithmetic Logic Unit
Accumulator
Cache
Control Unit
Core
This doesn't happen during the fetch part of the cycle:
Address bus is used
Program counter increments by one
Arithmetic operations are performed
Main memory is addressed
This doesn't happen during the Decode/Execute part of the cycle:
Current instructions are held in the CIR
Results are held in the accumulator
Status Register is updated
Instructions are transferred from Main memory.
What is held in ROM?
Data currently in use
Bootstrap loader
Instructions frequently used
Operating System
Antivirus software
What carries the address of the next instruction that will be fetched?
Address bus
Data bus
Control bus
System bus
School bus
Which component generates addresses?
Processor
Main memory
Control unit
Secondary storage
Flash USB storage
What is transferred down the data bus?
Data only
Addresses only
Data and instructions
Data, Instructions and Addresses
What accurately describes a peripheral?
A component of a computer system
A device that is not directly connected to a CPU
A device that is directly connected to a CPU
A device that is plugged in
Which if these is not a type of secondary storage?
Blu Ray
Flash memory
Hard disk Drive
RAM
Solid state Drive
What is the purpose of the accumulator?
To perform arithmetic operations
To hold the results of a calculation
To hold the accumulation of instructions that have happened
To keep a count of calculations that have been performed
