Page 101 - Ai_417_V3.0_C9_Flipbook
P. 101

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
   96   97   98   99   100   101   102   103   104   105   106