Video testimony of Ken Dakin who programmed the mainframe spreadsheet system known as the "Works Records System" at ICI in Cheshire, UK in 1974. This was six years before the first PC spreadsheet "Visicalc" and had many features missing in the later PC spreadsheet.. It also used "just-in-time" compilation techniques and "control tables" extensively and was written entirely in IBM Assembly language.
See also:
http://www.editgrid.com/user/ken/HIST...
for more details (no longer available)
die wahre Geschichte von Spreadsheets 1974
la vera storia dei fogli di calcolo 1974
la verdadera historia de hojas de cálculo 1974
la véritable histoire de feuilles de calcul 1974