Tapes comes from the mainframe tapes and were popularised by music too. so often people used normal tapes-drives and for a zx81-games - there were even description how you had to connect the microphone-cable to the head-phone-jack and reverse. While loadibg a zx-81 game you hear the whole time the data coming in! so meta: sound was for people and maschines.analog digital. So there was no difference between an accoustic coppler and data from the tape. 

GESPAC SA was a Swiss company who designed the G-64/96 Bus in 1979. This interface bus concept provides a simple way to interface microprocessor modules with memory and peripheral modules on a parallel bus. The G-64/96 Bus uses a simple, yet modern and powerful interface scheme which allows a higher level of functionality from the single height Eurocard form factor. The low overhead of the G-64/96 Bus interface greatly eases the design of custom boards by the User. This is why, even many years after its invention, the G-64/96 Bus is still widely used in the industry. 
 

Two types of tv-games:

Floppy disc or magnetic disc are faster and mor flexible than tapes. you can load and store autonom (no start and stop) and not linear, you can store them here or there. but of course also expensiver (you cant anymore use a (music) tapedrive.

1972: Demo Unix
> Science Fiction: When Harlie Was One  - "Computervirus" 

1975 Schockwellenreiter (Roman)
1979 AI im Netz (The Adolescence of P-1 Roman)
1980 Vergleich Bio - Computerprogramme
1983 AppleII Programm verbreitet sich > Elk Koner

Elk Cloner: The program with a personality

It will get on all your disks
It will infiltrate your chips
Yes, it's Cloner!

It will stick to you like glue
It will modify RAM too

Send in the Cloner!

1984

1984 Theorie und Praxis > erster Demovirus
1986 erste Infektionen
1986 MS-DOS: Indien (free copy) >  Raubkopien > Virus dazu > Bindung an die eigene Software ... > effekt: umbenennung
1987 erster Mac Virus.,
1987 erste Amiga  Virus - SCA