Professional IT Microcomputer Service/Consultant since before the modem for personal use, was invented. The Company that invented it was Hayes and the modem (meaning: MODulator/DEModulator) was a Hayes 300 baud Modem; a small, aluminum box, black removable plastic ends for easy repair access. And the first viable home computers were made; 64MBytes RAM (tops) and the CP/M (Computer Program Machine)