- winworldpc.com product/pc-dos/1xVersions of PC-DOS paralleled that of MS-DOS up until version 6.1, where PC-DOS was independently maintained by IBM up until 7.1, the last version.
- lowendmac.com 2006/origin-of-the-ibm-pc/August 12, 1981 marks the birth of the IBM PC, the computer that single-handedly turned personal computing to the business market.
- chessprogramming.org IBM_PCIBM PC, (IBM Personal Computer, PC) the progenitor of the PC compatible hardware platform. The original IBM version was model number 5150 with Intel 8088...
- nationaltoday.com ibm-pc-day/To enter this growing market and meet the demands of its customers and the business world, IBM decided to develop its first personal computer (PC).
- techrepublic.com pictures/ibm-pc-celebrates-25th-…The system has a full suite of original IBM documentation including the 1.0 versions of DOS, BASIC and the IBM PC Guide to Operations.
- pngwing.com ru/search?q=IBM PC
- turkcebilgi.com ibm_pc-dosIbm Pc-Dos hakkında Türkçe bilgi: Personal Computer Disk Operation System 1.0) (Kısaca:PC DOS 1.0).
- The models of IBM's first-generation Personal Computer (PC) series have names: IBM PC, IBM PC XT, IBM PC AT, Convertible and Portable.
- thoughtco.com history-of-the-ibm-pc-1991408The first IBM PC ran on a 4.77 MHz Intel 8088 microprocessor. The PC came equipped with 16 kilobytes of memory, expandable to 256k.