Editing Code page 437 (section)

== Alt codes ==
A legacy of code page 437 is the number combinations used in Windows [[Alt codes]].<ref name="Alt_and_Numpad" /><ref name="Entering_Unicode" /><ref name="Alt_and_Numpad_2" /> A DOS user could enter a character by holding down the [[Alt key]] and entering the character code on the [[numeric keypad|numpad]]<ref name="Alt_and_Numpad" /> and many users memorized the numbers needed for CP437 (or for the similar [[CP850]]). Although Microsoft Windows used different character sets such as [[CP1252]], the original numbers were emulated so users could continue to use them; Microsoft added the ability to type a code from the Windows character set by typing 0 before the digits.<ref name="Alt_and_Numpad" /><ref name="ASCII_Insertion_on_Word" />

{{anchor|Characters}}