Rotational Speed Track to Track Access Time Data Transfer Rate TABLE 1. SPEC1FlCATlONS SUMMARY SPEC1 FICATIONS SUMMARY Recording Mode Sectors per Track lndex per Track 30 kilobits 1.4 megabits 1.5 megabits DATA RECORDING FORMAT Table 1 contains a summary of 650 specifications. DATA RETRIEVAL TIMES DISC CHARACTERISTICS 3.5 kilobits