02 Physical Features

Physical Features of a Mobile Device

The physical features of a mobile device that are in our interest are related to the screen size, keyboard type, and camera quality and facilities.

Screen Size
The purpose of this question is to find out what screen sizes are most common in use at this time.
We have categorized them in:
- small: resolution approximately 128×160 pixels
- medium: resolution approximatley 176×208 pixels
- large: resolution approximately 240×320 pixels
- extra large: resolution approximately 320×320 pixels or higher

To have another comparison item you can consider that the medium size screen is as big as a credit card.

Keyboard
This question is meant to give us an idea about the type of keyboard that is most commonly used at this time.
The classification is:
- small
- extended: with additional keys
- additional keyboard: external and can be connected to the mobile device
- on screen: for mobile phones that have touchscreen

Camera
The purpose of this question is to find out what percent of the students have a camera integrated in their mobile device and what are the most common features of the mobile cameras that are used at this time.
Here is the classification:
- simple camera on my mobile phone: low resolution camera
- high quality camera: high resolution camera (starting at 5Mpixels)
- mobile camera with picture location information (GPS): when a picture is being taken it is attached to it information related to the location where it was taken, so you can use the picture as a destination for the GPS system.
- camera for video recording
- mobile camera for video conferences: it allows you to participate at video conferences

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