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Description

• Commonly used input device to enter text.
• Contains various types of keys such as alphanumeric, punctuation and special keys.
• Alphanumeric keys - letters and numbers.
• Punctuation keys - comma, semicolon, point so on..
• Special keys - function keys, control keys, navigation keys so on..
• Control keys that can performs an action(function), when held in combination with another key such as ctrl + a.
• Various layouts are ABCDE, XPeRT, QWERTY and AZERTY but QWERTY and AZERTY are commonly used.
• Wide range of keyboard designs are available such as traditional, ergonomic, folding etc.
• Connecting ways of keyboard are serial port, usb port and wirelessly.

Working

• Every character typed from keyboard is sensed as keystroke by the CPU.
• These keystrokes deposits a scan code which are stored in keyboard interface chip to have synchronization between keyboard and CPU.
• CPU processes these keystrokes and results the output in the form of display or command.

Special shortcuts

• Shift + Delete = Deletes the selected file or folder permanantly without placing in the recycle bin.
• Ctrl + Shift while dragging an item = Creates shortcut of selected item
• Alt + Enter = Shows properties of selected item.
• Alt + Spacebar = Opens the shortcut menu for the active window.
• Alt + Tab = Switches between the open applications.
• Ctrl + Esc = Opens Start menu.
• Holding shift while inserting CD = Prevents the CD from automatically playing.
• Windows logo button + Break = Displays System properties dialog box.
• Windows logo button + D = Shows the desktop.
• windows logo button + M = Minimizes all windows.
• windows logo button + E = Opens My computer.
• Windows logo button + F = Searches for file and folder.
• Windows logo button + L = Logoff the current user.
• Windows logo button + R = Opens run dialog box.
• Windows logo button + F1 = Opens Windows help.
• Ctrl + Windows logo button + F = Searches for computer in the network.
• F2 = To Rename selected item.
• F3 = Search for file or folder.