Leonard has a new laser printer to print letters for his business.
Leonard connects his printer to his computer using the USB port.
(a) Give three benefits of using the USB port to connect the printer to the computer.
Benefit 1
Benefit 2
Benefit 3
(b) State two benefits and one drawback of Leonard using a laser printer, instead of an inkjet
printer, to print the letters.
Benefit 1
Benefit 2
Drawback
(c) An interrupt signal is sent from the printer to the computer.
(i) Give two examples of when a printer would generate an interrupt signal.
Example 1
Example 2
2. (a) Karina is taking her Computer Science examination. She has three questions to answer
about output devices.
(i) For the first question she writes the answer:
“It is a high powered laser that cuts materials such as thin metals or wood.”
Identify the output device that Karina is describing.
(ii) For the second question she writes the answer:
“The screen is made up of blocks of red, green and blue pixels. The screen uses layers
of different types of liquid.”
Identify the output device that Karina is describing.
(iii) For the third question she writes the answer:
“It is responsible for powering and moving a motor in machinery, such as a robot arm in
a factory.”
Identify the output device that Karina is describing.
(ii) Many devices send interrupt signals.
Identify the software in the computer that will receive and manage all interrupt signals.