Functional elements assembled in an

Instrument to do one job can often be reconnected to do several other jobs, thus enhancing the usability of the instrument. Such has been the case with the bipolar power supply amplifier. The moving spirit behind Ihe development of this instrument was automatic testing, which requires power supplies capable of fast response to external control and, preferably, with bipolar output. Although Hewlett-Packard has developed a number of digitally-programmed power supplies to meet this need, numerous...

IMAGE Data Access

All data base operations are accomplished through the facilities of the DBML that interface with a host language such as COBOL, FORTRAN, or SPL. The DBML is structured so that each command consists of a DBMS procedure call followed by a set of parameters. In general, access to data within a data base is carried out on the data entry level. That is. each call to a DBMS procedure accesses some or all of the data items within a data entry. The table below presents an outline of the parameter set....

Quality

While the objectives of good performance and low cost presented many design challenges, the quality requirement provided many discussions but very few compromises. The counters had to be rugged and dependable. The two instruments were going to carry the HP label and therefore the tradition of reliability and quality established by the more expensive HP counters had to be continued in these two products costing only a few hundred dollars. It was obvious to all involved with the low-cost counter...