IBM PC XT was an iterative improvement over its predecessor, with enhancements like built-in HDD and extra expansion slots. PC DOS 2.0 was the standout improvement of the IBM PC XT, offering ...
The IBM PC used the Intel 8088 microprocessor ... The hard drive did not make an appearance until the release of IBM's XT machine in 1983. (Photo by SSPL/Getty Images) It happened on August ...