Answer all the questions.
Which input device allows users to enter text into a computer?
Which input device can capture sound for audio input?
Which of the following are examples of output devices? (select all correct options)
Which components can provide audio output from a computer? (select all correct options)
Match the five output devices with five descriptions.
| Draggable item | arrow_right_alt | Corresponding Item |
|---|---|---|
Laser printer | arrow_right_alt | Droplets of ink are propelled onto paper. |
LED screen | arrow_right_alt | Flat panel display that uses the light modulating properties of liquid crystals. |
LCD screen | arrow_right_alt | 2D High-powered laser that uses the X-Y plane cutter. |
Inkjet printer | arrow_right_alt | Flat panel display that uses an array of light emitting diodes as pixels. |
2D cutter | arrow_right_alt | Electrically charged powdered ink is transferred onto paper. |
Anna has a farm that grows fruit.
She has a system that monitors the conditions for growing the fruit. Sensors are used in this system.
a Explain what is meant by the term sensor. [2]
b State two sensors that could be used in this system and describe how they could be used. [6]
Describe the main differences between control and monitoring of a process. [2]
a) Name three buses used in the von Neumann architecture. [3]
b) Describe the function of each named bus. [3]
c) Describe how bus width and clock speed can affect computer performance. [3]
Complete the following paragraph by drag and dropping the terms provided:
The CPU data and instructions required for an application and temporarily stores them in the until they can be processed.
The is used to hold the address of the next instruction to be executed. This address is copied to the using the .
The contents at this address are stored in the . Each instruction is then and finally by sending out using the .
Any calculations carried out are done using the . During any calculations, data is temporarily held in a special purpose register known as the .
Which is an example of an embedded system?
How do embedded systems differ from general-purpose computers?
Embedded systems are commonly used in consumer electronics like microwaves and washing machines.
The primary function of an embedded system is to perform a set of predefined tasks.
What is the main function of a CPU?
What unit measures CPU speed?
What is a benefit of a multi-core CPU?
What happens during the fetch stage of the cycle?