A student is playing her piano. She uses her tablet computer to record the sound produced by the piano.
Context for 3(a)
The tablet computer has built-in input and output devices.
3(a)(i)Input Output DevicesEasy1 mark
Give the name of the input device built into the tablet computer that is used to record the sound produced by the piano.
3(a)(ii)Input Output DevicesEasy1 mark
Identify one other input device that can be built into the tablet computer.
3(a)(iii)Input Output DevicesEasy1 mark
The tablet computer has a display screen to output data for the student.
Give one other output device that can be built into the tablet computer.
3(b)Sound RepresentationMedium4 marks
Explain how the analogue sound waves produced by the piano are represented as digital data.
Answer
0 words
Context for 3(c)
The tablet computer has a 1.8 GHz quad-core processor.
3(c)(i)Cpu Architecture Fetch Execute Cycle InterruptsEasy1 mark
Instructions are fetched from random access memory (RAM) into the processor.
The control unit uses a list to decode the instructions into commands that can be processed.
Give the name of the list that is used for this purpose.
3(c)(ii)Processor PerformanceHard4 marks
The student wants a new tablet computer that has a 2.4 GHz dual-core processor.
Explain whether the processor of the new tablet computer would have a better performance than the processor of her current tablet computer.
Answer
0 words
3(d)Authentication Access ControlEasy2 marks
The tablet computer has a built-in biometric device.
Explain the purpose of the biometric device.