does your dial system really think?

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Part «of the control equipment of a modern dial system—dial telephony's equivalent of a brain..lb goes anto action tine instant you dial a call, selecting the telephone you want to reach and directing the switci-.es that set up the connection ... just as the brain directs the muscular actions of the body. lhis question can't be answered until we leairn more about the nature of thought. But dial telephone systems do simulate many of the processes of LJie human brain. For example, when a number is dialed, Bell's newest switching system COUNTS the dial pulses REMEMBERS them DECIDES ON the best route to a nearby town or across the nation TESTS to see if the route is clear SELECTS an alternate if the first route is busy REPORTS difficulties in circuits, if any Today's automatic switching reflects the creative think- ing of many scientists and engineers at Bell Telephone Laboratories. Each year your dial telephone is able to do more for you. And this is but one phase of the continuing effort to keep your Bell telephone service the world's best. BELL TELEPHOISIE LABORATORIES IMPROVING TELEPHONE SERVICE FOR AMERICA PROVIDES CAREERS FOR CREATIVE MEN IN SCIENTIFIC AND TECHNICAL FIELDS VOLUME 3 3, NO. 9 · · FEBRUARY 2 8, 1955 35? Does your dial system really think?

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Page 1: Does your dial system really think?

Part «of the control equipment of a modern dial system—dial telephony's equivalent of a brain..lb goes anto action tine instant you dial a call, selecting the telephone you want to reach and directing the switci-.es that se t up t h e connection . . . just as the brain directs the muscular actions of the body.

l h i s question can't be answered until we leairn more about the nature of thought. But dial telephone systems do simulate many of the processes of LJie human brain. For example, when a number is dialed, Bell's newest switching system —

COUNTS the dial pulses

REMEMBERS them

DECIDES ON the best route to a nearby town or across the nation

TESTS to see if the route is clear

SELECTS an alternate if the first route is busy

REPORTS difficulties in circuits, if any

Today's automatic switching reflects the creative think­ing of many scientists and engineers at Bell Telephone Laboratories. Each year your dial telephone is able to do more for you. And this is but one phase of the continuing effort to keep your Bell telephone service the world's best.

BELL TELEPHOISIE LABORATORIES

IMPROVING TELEPHONE SERVICE FOR AMERICA PROVIDES CAREERS FOR CREATIVE MEN IN SCIENTIFIC AND TECHNICAL FIELDS

V O L U M E 3 3, NO. 9 · · F E B R U A R Y 2 8, 1955 3 5 ?

Does your dial system really think?