Mainframe systems were displaced by PC-based and mid-range systems such as Portia, InvestOne, CAMRA, PAM, Axyis, HiPort, Eagle Global Plus and Dimension.

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In 1985 I became VP of Sales for a start-up called Applied Control Systems (ACS) that made PC based inventory and accounting software for restaurants.

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"This presentation was based on a PC training simulator and did not reveal potential vulnerabilities on actual flying systems, " it said.

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