plz give me a presentation on topic keyboard input device class 7
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Answer:
originally answerd for...
presentation speech on the topic,
keyboard input device""
In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
A common computer input device, a keyboard. A user presses a key which transfers information to a computer.
Input devices can be categorized based on:
modality of input (e.g. mechanical motion, audio, visual, etc.)
whether the input is discrete (e.g. pressing of key) or continuous (e.g. a mouse's position, though digitized into a discrete quantity, is fast enough to be considered continuous)
the number of degrees of freedom involved (e.g. two-dimensional traditional mice, or three-dimensional navigators designed for CAD applications)
QWERTY is the most common modern-day keyboard layout on English-language computer and typewriter keyboards. It takes its name from the first six letters seen in the keyboard's top first row of letters. The QWERTY design was patented by Christopher Sholes in 1867 and sold to Remington in 1873, when it first appeared in typewriters". "According to popular myth, Sholes arranged the keys in their odd fashion to prevent jamming on mechanical typewriters by separating commonly used letter combinations". [1]
Keyboards may come in wireless, foldable or virtual varieties, as shown on the right. PC keyboards with standard US layout have 101 to 104 keys but designs with extra special purpose keys can have many more, as with 114-key gaming keyboards.
I hope you can prepare your points with the above information... thanks!
Explanation:
An input device is a piece of equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
File:Typing example.ogvPlay media
A common computer input device, a keyboard. A user presses a key which transfers information to a computer.
Input devices can be categorized based on:
modality of input (e.g. mechanical motion, audio, visual, etc.)
whether the input is discrete (e.g. pressing of key) or continuous (e.g. a mouse's position, though digitized into a discrete quantity, is fast enough to be considered continuous)
the number of degrees of freedom involved (e.g. two-dimensional traditional mice, or three-dimensional navigators designed for CAD applications)