23. When was the IBM XT microcomputer released in the market? A.1970 B.1971 C.1983 D.1986 E.None of the above
Option C Solution: On 8th March 1983, IBM released the Personal Computer XT, short for extended Technology, or PC/XT, or just XT. It came equipped with a 10 megabyte MFM Full-Height Hard Disk Drive with 306 Cylinders, 4 Heads, and 17 512-byte Sectors, was expandable to 640k of RAM on the Motherboard, and came with MS-DOS v2.2.