VVP issue 1 – 5 January 2004

The 1900 Range – Index

1 - 1900 Architecture and System Description

1.1 - How the ICT 1900 Series evolved

1.2 - The ICT 1900 Range in 1966

1.3 - ICT 1900 Range Architecture

1.3.1 - System Architecture

1.3.2 - Standard Interface

1.3.3 - 1900 Executive

1.3.4 - The 1900 Range Order Code

1.3.5 - FP6000 Processor Data Flow

1.3.6 - Span of the Range

1.4 - Hardware technology in the ICT/ICL 1900 Range

2 - 1900 Performance and Competitive Position

2.1 - 1900 at the start- FP 6000 performance

2.2 - Performance of ICT 1900 in 1966

2.3 - Performance of ICT / ICL 1900 Series (All Models) and 2903/ME29

2.4 - ICT 1900 competitive position

3 - 1900 Software

3.1 - The FP 6000 Software (Before the 1900 Range)

3.2 - ICT 1900 Range Software - The Start

3.3 - Programming Aids (Software) in 1966

3.4 - The Operating Systems (George).

3.5 - ICT/ICL 1900 Software - Two views from the Board

3.6 - ICT/ICL 1900 Software in 1972

4 - 1900 Range in the Market

4.1 - 1900 Road Map

4.2 - Approx. Quantities delivered.

4.3. - Customers list and Applications

4.3.1 - The 1900 Users Group

4.3.2 - Some Customers Details

5 - 1900 Acknowledgements and References

Comments received

Virgilio Pasqoali

4 - ICT/ICL 1900 in the Market

4.1 – 1900 deliveries (Road Map)

The following chart was presented by Brian Procter and Virgilio Pasquali, after extensive research, at the ICT/ICL 1900 seminar in May 1996 (Science Museum – London).

It maps the delivery period versus performance of each 1900 model in its successive manifestations (see Sect.1.4), the relative position of the successive enhancements and their relationship with their predecessors and with each other.

The 2903/4 and the ME29 Ranges, though not, strictly speaking, part of the 1900 Range, are included for completeness.

4.2 - Approx. Quantities delivered.

Systems	Quantities	Market Life
1901	250	1966-69
1902,1903	300	1965-69
1904,1905,1909	100	1965-1967
1904/5 E/F	100	1966-1969
1906, 1907 (+1906/7 E/F?)	50	1965-1969
Systems	Quantities	Market Life
1901A,1901S	600	1969-74
1902A,1903A,1903S,1901T,1902T	1000	1969-
1904A,1903T,1904S	Over 800	1970-
1906A,1906S	25	1970-1975
Systems	Quantities	Market Life
2902,2903,2904	Close to 3000	1975-