quiz

Question #2:

One factor determining the size of a keyboard is the presence of duplicate keys, such as a separate numeric keyboard, for convenience.Further the keyboard size depends on the extent to which a system is used where a single action is produced by a combination of subsequent or simultaneous keystrokes (with modifier keys, see below), or multiple pressing of a single key. A keyboard with few keys is called a keypad. See also text entry interface.Another factor determining the size of a keyboard is the size and spacing of the keys. Reduction is limited by the practical consideration that the keys must be large enough to be easily pressed by fingers. Alternatively a tool is used for pressing small keys.

Mobile computing is a form of human–computer interaction by which a computer is expected to be transported during normal usage. Mobile computing has three aspects: mobile communication, mobile hardware, and mobile software. The first aspect addresses communication issues in ad-hoc and infrastructure networks as well as communication properties, protocols, data formats and concrete technologies. The second aspect is on the hardware, e.g., mobile devices or device components. The third aspect deals with the characteristics and requirements of mobile applications. While keyboard, is a typewriter-style keyboard, which uses an arrangement of buttons or keys, to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape, interaction via teletype-style keyboards became the main input device for computers.

Despite the development of alternative input devices, such as the mouse, touchscreen, pen devices, character recognition and voice recognition, the keyboard remains the most commonly used and most versatile device used for direct (human) input into computers.

A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However, to produce some symbols requires pressing and holding several keys simultaneously or in sequence. While most keyboard keys produce letters, numbers or signs (characters), other keys or simultaneous key presses can produce actions or computer commands.

In normal usage, the keyboard is used to type text and numbers into a word processor, text editor or other program. In a modern computer, the interpretation of key presses is generally left to the software. A computer keyboard distinguishes each physical key from every other and reports all key presses to the controlling software. Keyboards are also used for computer gaming, either with regular keyboards or by using keyboards with special gaming features, which can expedite frequently used keystroke combinations. A keyboard is also used to give commands to the operating system of a computer, such as Windows' Control-Alt-Delete combination, which brings up a task window or shuts down the machine. It is the only way to enter commands on a command-line interface

For desktop computers with separate keyboards, when you don’t like the layout or when you find some keys are in an uncomfortable place in the keyboard, it’s easy to change and buy another keyboard.

For laptops or notebooks however, you can’t do that. You’re stuck with how the keys are situated or laid out.Fortunately for Windows users (Windows NT/2000/XP/Vista/ Win 7), you just need to install KeyTweak created by Travis Krumsick. KeyTweak is technically a keyboard remapper which is absolutely free to download and use. You can interchange keys, change the assignment of several keys or change the layout of the whole keyboard if you want.

Using Keytweak is very easy. You can use the manual method where you click any of the keys in the virtual keyboard and reassign it using the dropdown provided.

Or you can use the Full Teach Mode or Half Teach Mode which can be activated through the buttons located at the bottom.

When in Full Teach Mode, just click Begin Teach Mode and then press (1) the key you want to modify and then (2) press the new key it would be assigned to.

When in Half Teach Mode, click Begin Teach Mode and then press the key you want to modify and then manually select the key it would be assigned to.

It’s really very easy to use and once you’re done reassigning keys, you don’t need to run it again as your keyboard will now have the new ones.