High Quality Content by WIKIPEDIA articles! XMODEM is a simple file transfer protocol developed as a quick hack by Ward Christensen for use in his 1977 MODEM.ASM terminal program. XMODEM became extremely popular in the early bulletin board system (BBS) market, largely because it was so simple to implement. It was also fairly inefficient, and as modem speeds increased this problem led to the development of a number of modified versions of XMODEM to improve performance or address other problems with the protocol. Chuck Forsberg collected a number of these into his YMODEM protocol, but poor implementation led to a further fracturing. His later ZMODEM protocol was so superior that it led to the demise of all of these XMODEM derivatives in the early 1990s.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.