System Design of the Flying Spot Store

i .1 Purpose and Organization of the Paper This paper discusses physical factors which control the speed, capacity, number of channels, physical size and probability of error in readout in the system design of the flying spot store. These factors are related to the form of the store, to the intended application and to device characteristics. All of the factors which enter into system design interact strongly. For this reason, a number of scaling relationships which involve exchanges between system variables such as speed and capacity, or between system variables and device parameters, are given. A graphical representation for the flying spot store is developed t h a t demonstrates the relationships between the factors entering into physical system design. This representation is used in discussing the range of realizable designs. In system design, devices and operating conditions are chosen to meet the requirements of speed, capacity, etc., set by the intended application. Electronic circuit design then proceeds and, if necessary, the parameters chosen are modified on the basis of circuit requirements. In all the development to date, very little modification of the physical 365