C&A Computing & Automation System/360 Model 195

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RAL's 360/195

The Rutherford 360/195 was delivered in November 1971 as a 2 Mbyte single processor system. It cost £3.6M and the machine was accepted on the 15 November 1971. The original aim was to take it over at the end of the year. During 1972, the main peripherals that were originally part of the 360/75 were replaced by similar 370-type peripherals. Remote access to the 360/195 was moved from a great variety of existing equipment to new GEC 2050 workstations situated mainly in university departments and operating under HASP-RJE modified to allow terminal access to RAL's locally written text-editing and job-initiation system, ELECTRIC.

In 1973, a second set of IBM 3330 discs (8 drives) was added. The number of RJE stations had risen to 18 submitting over 3000 jobs a week between them.

In March 1974, a third megabyte of memory was added at a cost of about £400K. By now the 360/195 was connected to ARPAnet via Peter Kirstein's gateway and participation in the Post Office's Experimental Packet switching Network (EPSS) had started.

In August 1975, Jack Howlett retired and the Atlas Laboratory was combined with the Rutherford Laboratory. A GEC 4080 front-end allowed RJE stations to access both the Atlas ICL 1906A and the Rutherford 360/195.

In 1976, a second 360/195 was purchased with 1 Mbyte of memory. This was installed in the Atlas Centre and once this was up and running the first 360/195 was moved from Rutherford's R1 building to the Atlas Centre.

By May 1977, the machines had been reconfigured as dual 2-Mbyte 360/195s. The Post Office opened EPSS at the same time and both Daresbury's 370/165 and the IBM 360/195 complex at Rutherford was linked to it.

By 1978, the number of workstations attached to the 360/195s had reached 50.

In March 1979, an IBM 3032 was added to the system allowing the 3032 to front-end two 360/195s.

Finally, in March 1982, an IBM 3081D replaced the 3032 front-end and the first 360/195 was turned off on the 21 October 1982. During 1983 an ICL Atlas 10 was delivered and the second 360/195 turned off.