What Is the Alt Code
IBM developed a method to place the characters that can not be typed by a keyboard on the screen: while keeping the Alt key down, typing the code defined for the character via the numeric keypad. The system which interprets this action and places the corresponding character at the cursor's location is BIOS.
These codes became so popular so that Microsoft, even though developed a new set of codes, decided to keep them. The new set was named ANSI(later changed to Windows codes), and the old ones called as OEM(original equipment manufacturer) code pages. Three-digit codes represent the OEM codes. Codes with a preceding 0 represent the new ANSI codes.
For the last two decades, Unicode is being adopted by many systems. After adopting Windows to Unicode, the entry of all Unicode characters by the same method was desired, and achieved by some applications, but couldn't be spread to all system. Compatibility issues with old ANSI codes prevent the entry of all Unicode characters.
- Characters produced may vary depending on the OEM Code Page setting.
- To type a character using its Alt Code value, Num lock should be on. Otherwise unwanted results may occur.
- The numeric keypad does not exist on every laptop. To use them, Numpad should be activated by pressing down the Fn key.
ALT codes for windows
Windows ALT key number codes.
Select a character to get ALT code:
How to type ALT code symbols
Press the ALT key and type the ALT code with the keyboard's numeric keypad.
ALT+65 will write the capital A letter.
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