History of Communication Technology By teedar_ann Jan 1, 1932 8mm home movie 8mm film Jul 11, 1969 Microcassette Microcassett Aug 20, 1970 Dot matrix printer dot matrix printer Jan 1, 1971 Floppy Disk floppy disk Apr 21, 1973 VHS VHS Mar 7, 1976 Telephone Dec 22, 1981 Cable Modem May 17, 1985 Wireless Wi-Fi Sep 4, 1988 CD-ROM CD-ROM
