All of the common letters used in language, from A through Z, are represented by the alpha characters on a keyboard. The term “alphanumeric” describes both the letters and the numbers on a keyboard.
Depending on the location for which the computer keyboard is intended, different character sets are offered. The 26 characters of the English alphabet in what is known as the QWERTY arrangement, as well as the numbers 1 through 0, make up the conventional U.S. keyboard style.
There may be a number pad to the right of the alpha keys on some iterations of this keyboard layout, positioned in a manner reminiscent of desktop calculators. Local characters and alphabets are taken into consideration while designing keyboards for Asia and other locales without a Latin-based writing system.
Depending on the operating system being utilised, some keyboard keys have distinct roles. The operating system itself may use the function keys designated F1, F2, F3, etc. as a shortcut key within a programme or by a software developer.
When using the Windows operating system, closing a window by simultaneously pressing the Alt and F4 keys is a typical function key combination.