Question

Part 4: Device Design:
Observe any two (2) devices at home or in the college:
a. Show the images of the two (2) devices.

b. Identify any four (4) differences between them.

c.Draw the hierarchical task analysis (HTA) on how to use each of them.

d. Give two (2) ways on how to improve the design of any of the two (2) devices.

e. Identify two (2) HCI issues involved in the use of any of the devices and explain how these issues relate to the device.

Answer 1

a. 1:- Headphones

2 :- Mouse

b : Differences

1- Mouse is an input device used with computers. Whereas Headphones are a pair of small speakers used for listening to sound from a computer.

2- Mouse has three types of buttons one is left second is right and third is to scroll down. Whereas Headphones have buttons to turn the device on and off and also to raise volume or decrease volume.

3- Mouse is input device, Headphones are output device

4- Mouse when connected to computer it helps us to navigate from one tab to other, Folders to Folders, whereas headphones are sometimes also used like a mic to speak.

c :

How to use mouse Insert the cable into computer click left button twice to enter into any file Click right button once on anything you want the Properties of. Scroll button to scroll down-up the screen

How to use Headphones Insert the cable into computer or Mobile phone open music app to listen to music open videos and listen the audio in headphone also used as mic while talking on phone

d :

Headphones can be made even more light weight so that it will be lighter on your head