Microsoft purchased a all-encompassing authorization for 86-DOS from Seattle Computer Products in December 1980 for $25,000. In May 1981, it assassin Tim Paterson to anchorage the arrangement to the IBM-PC, which acclimated the slower and beneath big-ticket Intel 8088 processor and had its own specific ancestors of peripherals. IBM watched the developments daily, submitted over 300 change requests afore it accustomed the artefact and wrote the user chiral for it.
In July 1981, a ages afore the PC's release, Microsoft purchased all rights to 86-DOS from SCP for $50,000. It met IBM's capital criteria: it looked like CP/M, and it was accessible to acclimate absolute 8-bit CP/M programs to run beneath it, conspicuously acknowledgment to the TRANS command which would construe antecedent files from 8080 to 8086 apparatus instructions. Microsoft accountant 86-DOS to IBM, and it became PC-DOS 1.0. This authorization additionally acceptable Microsoft to advertise DOS to added companies, which it did. The accord was spectacularly successful, and SCP after claimed in cloister that Microsoft had buried its accord with IBM in adjustment to acquirement the operating arrangement cheaply. SCP ultimately accustomed a 1 actor dollar adjustment payment.
In July 1981, a ages afore the PC's release, Microsoft purchased all rights to 86-DOS from SCP for $50,000. It met IBM's capital criteria: it looked like CP/M, and it was accessible to acclimate absolute 8-bit CP/M programs to run beneath it, conspicuously acknowledgment to the TRANS command which would construe antecedent files from 8080 to 8086 apparatus instructions. Microsoft accountant 86-DOS to IBM, and it became PC-DOS 1.0. This authorization additionally acceptable Microsoft to advertise DOS to added companies, which it did. The accord was spectacularly successful, and SCP after claimed in cloister that Microsoft had buried its accord with IBM in adjustment to acquirement the operating arrangement cheaply. SCP ultimately accustomed a 1 actor dollar adjustment payment.
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