The Tab Key
The Tab Key, located on the left-hand side of the keyboard, usually directly above the Caps Lock key, is used for a variety of time-saving functions.
The most useful of all is the ability to switch between fields on digital forms. By jumping to the next section of the form, the information can be filled a lot quicker as the mouse is not involved. Equally, pressing the shift and tab keys simultaneously will move the cursor to the previous field.
The tabulator function, as the name suggests, was originally used to create tables. Fredric Hillard filed a patent for a tabulator rack in 1900 which created equal spacing for producing tables.
In more recent usage, the tab key in a word processor will insert a large space, used to indent the first line of a paragraph. Though arguably its most useful function is the ability to move the cursor to the next field of a form, as discussed.
This button is depicted by a variety of icons, but the most common is that of two opposite facing arrows, each against a vertical line.