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Using Keyboard
A keyboard is an input device used to type text, numbers and commands into the computer, as shown in Figure
Function key Command key
Control key
Windows key
Navigation key Enter key
Function keys
Keys labelled from F1 to F12 are function keys. These are sets of keys on a computer keyboard that perform
specific functions within software applications and the operating system. Their functions differ from program to
program. For example F1 key in most programs is to get help on that program.
Some important functions performed by some of the keys are:
• Control keys: These keys such as Control (CTRL), SHIFT, SPACEBAR, ALT, CAPS LOCK and TAB are used in
combination with other keys to perform specific functions related to the operating system or software applications.
• Enter key: The Enter key, also known as the Return key, is a fundamental key on a computer keyboard. Its
primary purpose is to execute a command or to move the cursor to the next line in a text document.
• Punctuation keys: Punctuation keys include keys for punctuation marks, such as colon (:), semicolon (;), question
mark (?), single quotation marks (‘’), and double quotation marks (“”) are essential for proper grammar, syntax,
and communication in written language.
• Navigation keys: These keys allow you to move the cursor or navigate through text and documents. They are
essential for editing, selecting, and moving within different software applications. Arrow Keys (Up, Down, Left,
Right) allow you to move the cursor or highlight text in the corresponding direction.
The Home key moves the cursor to the beginning of a line of text or to the start of a document. The End key
moves the cursor to the end of a line of text or to the end of a document. The Page Up key scrolls up one page
at a time in a document or on a webpage. The Page Down key scrolls down one page at a time in a document
or on a webpage.
• Command keys: Command Keys, such as INSERT (INS), DELETE (DEL), and BACKSPACE execute specific
commands or functions within an application or the operating system. When the INSERT key is turned ON, it
helps you overwrite characters to the right of the cursor. The DELETE key and the BACKSPACE key are used to
remove typed text, characters and other objects on the right and left side of the cursor, respectively.
• Windows key: It is often denoted by the Windows logo ( ), and is found on most Windows-compatible
keyboards. Pressing this key opens the Start menu.
ICT Skills-I 99

