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A 1948 IBM computer with no memory at all, fed by punchcards and programmed by physically rewiring its panels, was still doing the accounting at a Texas filtration company as recently as 2020
body.single-post h1.entry-title,body.single-post .entry-title{text-transform:none!important;} At Sparkler Filters in Conroe, Texas, accounting once meant carrying a deck of punched cards to an IBM 402, fitting the correct wired control panel into its side and listening as relays and mechanical counters turned the cards into a printed report. The extraordinary part is not that this happened in the 1950s. A computer-history archive was still descr…
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