Abstract: Memory access time, noise and costs are substantially reduced while reliability is increased by replacing fixed delay lines with a dynamic delay. This dynamic delay is placed on the same integrated circuit as the remainder of the memory access circuitry to eliminate tracking problems associated with off-chip delay lines. The dynamic delay element is activated after all of the row address strobe (RAS) bits have been generated. These RAS bits serve to strobe the row column address bits initially present on the address bus into the memory. After the delay time has elapsed an address multiplexor switches column address bits onto the address bus to replace the prior row address bits. As soon as this switch is completed column address strobe (CAS) bits are generated to strobe the column address bits into the memory.

Abstract: A programming aid device for aiding in the interpretation of collimated fields of data in a computer printout. The device includes an inscribed data record which is in a format which corresponds to the collimated fields of the computer printout. When the device is positioned in association with a single row of the computer printout and properly aligned, the data record identifies the data fields of the computer printout. Eyecatcher data is provided in the data record to match up with identical eyecatcher data in the selected row of the computer printout to aid in the alignment of the data record with the selected row of the computer printout. The device also includes an information section for interpreting data in the selected row of the computer printout in accordance with designator data associated with predetermined fields of the data record.

Abstract: An electronic component assembly including a printed circuit board unit and a protective cover wherein the cover has flexible flap portions that protect electrical contact pads disposed along at least one edge of the printed circuit board unit. The flap portions can be flexed to expose the electrical contact pads. Removal of the flexing force allows the flaps to return to their relaxed, closed positon by means of the internal resiliency of the cover material. Such flexing of the flap portions can be effected by surfaces of a corresponding mating connector so as to expose the contact pads to the contact pins of the mating connector. When the electronic component assembly is removed from the mating connector, the printed circuit board unit is contained by (i.e., completely surrounded by) the cover thereby protecting the unit from physical impact or dust.