Terahertz (THz) is a unit of measure of frequency that is equal to 1 trillion hertz (1012 Hz). It usually refers to the frequency of an electromagnetic wave, which is a part of the electromagnetic spectrum invisible to the naked eye that lies in between the microwave and the infrared range. T-rays are an example of a specific part of the spectrum...
A smartphone is a mobile phone with highly advanced features. A typical smartphone has a high-resolution touch screen display, WiFi connectivity, Web browsing capabilities, and the ability to accept sophisticated applications. The majority of these devices run on any of these popular mobile operating systems: Android, Symbian, iOS, BlackBerry OS and Windows Mobile.
A smartphone is expected to have a more powerful CPU, more storage space, more RAM, greater connectivity options and larger screen than a regular cell phone.
High-end smartphones now run on processors with high processing speeds coupled with low power consumptions. That means, they’ll allow you to play 3D games, browse the Web, update your Facebook account, call, and text much longer than you used to.
In addition to the features mentioned earlier, smartphones are also equipped with innovative sensors like accelerometers or even gyrscopes. Accelerometers are responsible for displaying screens in portrait and landscape mode, while gyroscopes make it possible for games to support motion-based navigation.
The earliest touch screen smartphones used resistive touchscreen displays, which required the use of slender pointing objects known as styli (or stylus in singular form). Most of the later models however, like the iPhone and most Android phones, employ capacitive displays, which feature multi-touch finger gestures.
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