“Modular computing” — 1970s printing industry promo film

Output of the computer itself are commonly made by paper tape punched in code. Borrowing a term from architecture, the computer men call the units modules. A dictionary gives these definitions: an interchangeable plug-in item containing components, an incremental block of storage or other building block for expanding the computer capacity. The GSA special purpose computer typesetting system which the Monotype Corporation markets fits these definitions. It offers building block variations to suit most Monotype and Monophoto machine setting and line composition, too. Whatever the configuration, it's all designed to anticipate tomorrow's needs today. The modular conception then must be ultramodern, but is it? These are modules, too. Alphabets of key buttons on a keyboard, alphabets of type matrices in cases that go onto a casting or film setting machine. And all this began around