Common Input Device: Keyboards are widely used for entering text and commands into computers.
Textual Data Entry: Their primary function is to input textual data and execute commands.
Standardized Layout – QWERTY: Most keyboards follow the QWERTY layout, named after the first six letters on the top row. This layout is a historical artifact from typewriters.
Fixed Layout, Variable Non-Alphanumeric Keys: While letters and digits have a fixed layout, non-alphanumeric keys can vary.
QWERTY’s Historical Origin: QWERTY’s design dates back to mechanical typewriters. Despite not being optimal for typing, it persists due to historical continuity.
Dominance Despite Technological Freedom: Even with electric typewriters and computer keyboards not bound by mechanical constraints, QWERTY remains the dominant layout.
Economic Considerations: The existing investment in QWERTY keyboards makes a transition costly, requiring either replacement or a phased-out approach.
Function Keys:
Programmable Keys: Function keys on keyboards can be programmed to trigger specific actions within an operating system.
Top Row, F1 to F12: Located at the top of the keyboard, numbered F1 to F12, often referred to as F keys or FN keys.
Useful Shortcuts: Provide handy shortcuts for common computer functions, enhancing everyday computing tasks.
Combo with CTRL, ALT, SHIFT: Frequently combined with other keys like CTRL, ALT, and SHIFT to perform various actions.
Common Windows Function Key Uses:
F1: Display help screen.
F2: Rename highlighted file or folder.
F3: Open the search tool.
Alt+F4: Close the current window.
F5: Refresh window or webpage contents.
F8: Boot Windows into safe mode by holding F8 during startup.
