| 2156 |
vrinda |
1 |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
|
|
|
2 |
<html><head>
|
|
|
3 |
<meta content="text/html; charset=ISO-8859-1" http-equiv="content-type"><title>Input Mechanisms</title></head>
|
|
|
4 |
<body>
|
|
|
5 |
<h1>Input Mechanisms</h1>
|
|
|
6 |
<h2><a name="Keyboard"></a>Keyboard</h2>
|
|
|
7 |
Keyboard is an input device used to type numbers and text into
|
|
|
8 |
a cellphone, laptop or operating system of a computer. Following are
|
|
|
9 |
the two types of keyboards:<br>
|
|
|
10 |
<ol>
|
|
|
11 |
<li>T9 Keyboard</li>
|
|
|
12 |
<li>QWERTY Keyboard</li>
|
|
|
13 |
</ol>
|
|
|
14 |
<h3><a name="T9_Keyboard"></a>T9 Keyboard</h3>
|
|
|
15 |
T9 stands for text on 9 keys. A T9 keyboard is the replacement for
|
|
|
16 |
QWERTY style keyboard. Mobile phones with T9 keyboard have 9 large size
|
|
|
17 |
keys. While using a T9 keyboard, users don't have to tap on the exact
|
|
|
18 |
alphabet, instead they will have to tap on the button that has the
|
|
|
19 |
desired alphabet.<br>
|
|
|
20 |
<br>
|
|
|
21 |
The <a href="Predictive%20Texting.html">predictive texting</a> in a T9 keyboard makes SMS messaging easier as
|
|
|
22 |
it reduces the multiple tapping problems in the keyboard. <br>
|
|
|
23 |
<br>
|
|
|
24 |
<img alt="" src="image/LG_Arena_keypad.jpg" border="0"><br>
|
|
|
25 |
<h3><a name="QWERTY_Keyboard"></a>QWERTY
|
|
|
26 |
Keyboard</h3>
|
|
|
27 |
QWERTY keyboard is just like the regular keyboard of personal
|
|
|
28 |
computers. It is termed as a QWERTY keyboard because the first six
|
|
|
29 |
letter keys on the top row spell QWERTY. This type of keyboard was
|
|
|
30 |
designed in the early 1870s to optimize the typing speed on
|
|
|
31 |
typewriters to prevent jamming. Many cellphones these days come with a
|
|
|
32 |
QWERTY keyboard as it makes typing easier and faster in comparison to
|
|
|
33 |
T9 keyboard.<br>
|
|
|
34 |
<br>
|
|
|
35 |
<img alt="" src="image/3268380875_7a8eb62254.jpg" border="0"><br><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Times New Roman'; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; font-size: medium;"><span class="Apple-style-span" style="color: rgb(68, 68, 68); font-family: Arial,sans-serif; font-size: 13px; line-height: 20px; text-align: left;"></span></span></body></html>
|