PPT Slide

Ferrite core memory

A/D and D/A conversion

Light pen

Multiprocessing

Real-time database management

Distributed processing

Timesharing

Interactive displays

Networking

Marginal checking for component failure

Memory cycle-stealing

Buffered I/O

COMPOOL

500,000 line real-time executive

Pioneering Features

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Ferrite core memory used from 1953 until the mid-1970s

A/D and D/A conversion -- invention of the modem

Light pen -- precursor to the mouse

Multiprocessing -- did not get to the Wintel world until 1995

Real-time database management

Distributed processing -- PDP-11 and VAX

Timesharing -- OS-360, TX2

Interactive displays -- Xerox

Networking -- IBM, DEC, ARPA

Marginal checking for component failure -- intelligent devices

Memory cycle-stealing -- LISP machines

Buffered I/O -- IBM 360

COMPOOL -- an area in system memory shared by

various subroutines; re-emerged in COBOL

500,000 line real- time executive -- BIGGEST EVER