Specifies the coding of the graphic characters in American National Standard for Office Machines and Supplies - Alphanumeric Machines - Keyboard Arrangement, ANSI X4.23-1982, and American National Standard for Office Machines and Supplies - Alphanumeric Machines - Alternate Keyboard Arrangement, ANSI X4.22-1983. Includes the coding for the control characters in the Appendixes of ANSI X4.23-1982 and ANSI X4.22-1983. The coding can also interchange with devices having keyboards conforming to ANSI X4.23-1982 or X4.22-1983.