SCANCODE Meaning and
Definition
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A scancode refers to the numeric representation assigned to each key on a computer keyboard. It is essentially a unique identifier that enables the computer to recognize and interpret the keystrokes made by the user. When a key is pressed on a keyboard, it generates an electrical signal that is recognized by the computer hardware. This signal is then converted into a scancode, which is transmitted to the computer's operating system.
Scancodes are typically expressed in hexadecimal or decimal format. Each key on a keyboard has a specific scancode associated with it, allowing the computer to differentiate between different keys. These scancodes are essential for translating user input into commands or characters that can be processed by the computer.
Along with identifying individual keys, scancodes also play a crucial role in handling special keys on a keyboard, such as function keys, modifier keys (e.g., Shift, Ctrl), and multimedia keys. These special keys often have distinct scancodes that are recognized by the operating system or specific applications to trigger specific actions or functions.
In summary, scancodes are numeric representations assigned to each key on a computer keyboard, enabling the computer to recognize and interpret the keystrokes made by the user. They serve as a vital intermediary step in converting physical keypresses into digital commands or characters that can be interpreted and processed by the computer.
Etymology of SCANCODE
The term "scancode" is derived from the combination of two words: "scan" and "code".
The word "scan" comes from the late Latin word "scannāre", which means "to examine" or "to survey". It was originally associated with analyzing poetry. Over time, it gained the more general meaning of examining or scrutinizing something.
The term "code" originates from the Latin word "codex", which referred to a block of wood, a book, or a tablet. It evolved to signify a system of laws or regulations and later expanded to include any system of symbols or signals used to represent information.
Therefore, when these two words are combined, "scancode" refers to a digital representation or signal that is generated by scanning or examining an input device, such as a keyboard or barcode scanner.
