Some keyboards have even more buttons, allowing you to change the system volume, eject a CD, or open programs such as your e-mail or Web browser. It wasn’t until the late seventies that standardized computer keyboards finally became available, thanks to far-sighted companies like Apple, Radio Shack and Commodore. Most of today's computer keyboards also have a row of function keys (F1 through F16) along the top of the keyboard, arrow keys arranged in an upside-down T, and a numeric keypad on the right-hand side. For example, pressing Command-S (Mac), or Control-S (Windows) typically saves a document or project you are working on. Modifier keys, such as Control, Alt/Option, and Command (Mac) or the Windows key (Windows) can be used in conjunction with other keys as "shortcuts" to perform certain operations. Let the crumbs shake out to the floor or table. While the design of computer keyboards may have come from typewriters, today's keyboards have many other keys as well. You can also hold it at an angle, as long as part of the keyboard is pointing towards. This keyboard layout is known as the QWERTY design, which gets its name from the first six letters across in the upper-left-hand corner of the keyboard. As the name implies, a keyboard is basically a board of keys.Along with the mouse,the keyboard is one of the primary input devices used with a computer.The keyboard's design comes from the original typewriter keyboards, which arranged letters and numbers in a way that prevented the type-bars from getting jammed when typing quickly.
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