The design philosophy of Pegasus, a quantity-production computer

The paper gives an historical account of the development of the packaged method of construction of computers, and the advantages of this method are discussed. The packages used in the computer Pegasus are described from both an electronic and a mechanical point of view. The specification of the machine is given and the arguments which led to this specification are discussed. The detailed logical design procedure leading from the specification to the wiring lists is described. The method of maintenance and some reliability figures are given.