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.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
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]
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?