This paper discusses the design of a real-time computer. The computer's design requirements, design decisions, and architecture are summarized. The paper discusses how the design requirements influenced the computer architecture. The system's three upward compatible addressing options (real, base, virtual) are also discussed.

This correspondence considers the cost and performance factors in computer architecture and how they apply to parallel processors.

Consideration is given to the evaluation of definite integrals of the form [equation: see PDF] where n is any integer and R = [r2 + a2 − 2ra sin 𝛉 cos ξ]1/2. These integrals are encountered in a variety of electromagnetic radiation and diffraction problems involving circular geometry. Various techniques that have been used to obtain approximate evaluations of these field integrals are discussed briefly. Subsequently, a rather straightforward analytical method is described which gives closed-form evaluation of the integrals without resorting to any simplifying approximations. The results of this method are presented in terms of near-zone or source-region functions, depending on whether r > a or vice versa. These functions are defined by infinite series which involves well-known mathematical functions. Some interesting properties of the near-zone and source-region functions are considered, and it is shown that their infinite series representations are amenable to machine computation. Problems associated with the calculation of numerical values are discussed and generalized algorithms for the near-zone and source region functions are presented.