Question

The most common user interface in computing today is graphical user interface or GUI. Typically a GUI includes menus, windows, icons, buttons and a mouse as pointing device. But with the development of virtual reality (VR) techniques, a different type of interface has emerged: a virtual interface VR uses 3-D graphics and computer simulation to generate an imaginary world in which the user can move in a virtual interface, you put on a head-mounted display (HMD) to see the pictures, which makes you feel as if you are in a 3-D world. Most HMDs have two displays and provide stereoscopic vision.

You also use sophisticated controlling devices, such as 3-D joysticks, gloves, special suits and motion detectors. A virtual mouse trackball or joystick is used to move around the space you are exploring. A data glove (or VR glove) has pressure pack and sensors on the fingers which make you feel as if you are picking up objects and touching things. Full body suits with position and bend sensor are used for capturing motion. Motion detectors allow the machine to sense when and how you move.

VR systems are already being used in fields like video games, architectural design and virtual exhibitions. Other VR applications allow participants to view reality from an advantageous position, for example simulators and telepresence systems. In simulators, scientists recreate a particular condition or situation by using a computer program to reproduce it. For example, pilots use flight simulation to do their training. Telepresence system connects remote sensors in the real world with the senses of a person, for instance, doctors use tiny cameras and instruments on cables to do complicated surgery, and scientists use remotely operated robots to work in dangerous conditions, to explore volcanic activity, the depths of ocean, or outer space.





1. Read the text and find the following. (6x2= 12 points)

1. A type of interface that allows users to select things by clicking on icons and menus. __________

2. The technique which uses a computer model or program to reproduce a particular situation. _________________

3. A device used to manipulate and move virtual objects with your hands. ______________

4. Devices which contain movement sensors. __________________________

5. The machines that simulate flying condition. ________________________________

6. Machines designed to operate in dangerous environments. ____________________



2. Find the words in the text with the following meanings. (6x3= 18 points)

1. Artificial reality or environment generated by computers. __________________________

2. User interface based on virtual reality. _________________________________________

3. A video display that a person wears in front of the face. ___________________________

4. Effect of perceiving a 3-D world by sending two views to the user’s right and left eyes. ____________________________________________________________

5. Control device used in video games. ___________________________________________

6. Very small _______________________________________________________________



3. What do these abbreviations stand for? (6x3= 18 points)

1. LCD ____________________________________________________________________

2. CRT ____________________________________________________________________

3. RSI _____________________________________________________________________

4. dpi _____________________________________________________________________

5. WAI ____________________________________________________________________

6. USB ____________________________________________________________________



4. Language work: (3x5= 15 points)

Describe the use of these devices.

1. A printer

_______________________________________________________________________________________________________________________________________________

2. A touch screen

_______________________________________________________________________________________________________________________________________________

3. A game controller

_______________________________________________________________________________________________________________________________________________

5. Writing ( 17 points)

Write an email to your classmate recommending what kind of different word processing he/she might need to use for school activities.



________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________





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Answer 1

Resposta:

1-1=GUI 3-1=VR 2-1=VR

Explicação: