From the introduction: "This document is a somewhat idealized version of an operating budget for the S4C facility. It is idealized from the following two standpoints. It assumes that the machine has been installed for a period of about a year, and the initial operating period has transpired. Specifically, it assumes that the period of heavy travelling by the programming staff is over, and it assumes that the high volume of long distance telephone calls that transpire as a machine installation is 'shaken down' have been completed. Furthermore, it assumes that things have settled down to the extent that overtime is proportional to work accomplished. In addition, it is somewhat idealized due to the lack of a budget for the sales function."