He designed and prepared specifications and system drawings, created new software, and modified existing software as necessary for the application of DEC Microvax
and PDP-11 computer-based systems for process control and monitoring.
In 1990, each of over 450 local offices had its own MicroVax
micro-computer on site, as part of a decentralized control system.
Moving a small passive object on a cluster of 4 MicroVax
II workstations connected by a 10 megabit/second Ethernet takes about 12 ms while moving a small process takes about 40 ms.
All electronic components are integrated with one security management software program, the C*CURE System 1 Plus from Sensormatic Electronics Corporation, which resides on a Digital Equipment Corporation MicroVax
computer (located in a secure equipment room).
The program occupies less than 400 kB of memory, requires at least 6 MB of random access memory and 200 MB of hard disk space, and can be run on various computers, including SUN workstations, VAX mainframe clusters, MicroVAX
workstations and IBM-compatible PCs.
INMAGIC Plus operates on several computer platforms, including DEC VAX, MicroVAX
, and IBM PCs and compatibles.
The GIS used and evaluated in this project was Laser-Scan operating on a microVAX
II with a digitizing table, high resolution graphics terminal, and large plotter.
Its DEC MicroVAX
II with a 9-MB internal memory supported 48 active on-line users and 12 background tasks at eight sites around California.
In 1985, Digital Equipment Corporation introduced a line of microcomputers called MicroVAX
. When MicroVAXes
appeared, they progressively displaced the old PDPs that formerly occupied the $20,000- to $50,000-price microniche.
Bar codes track individual cartons and update inventory records in a warehouse management system, which resides on a MicroVax
3100s in each of the schools serve DEC's PATHWORKS software to the desktop systems, which may be located in computer labs, classrooms, offices and libraries.