Timeline for What interface did Video Backup System use?
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Aug 14, 2017 at 3:05 | comment | added | Brian H | I'm not sure we have a valid connection diagram for the "VBS" that I linked to on the BBOAH (which is different than the one linked in @Joe's answer). So, adding to the confusion, there's more than one product for Amiga that shares both the functionality and the descriptive name "VBS". Oy vey. | |
| Aug 12, 2017 at 19:43 | comment | added | mnem | @BrianH Good point, thinking about it you are obviously correct, the backup rate and restore rate have to be the same since the tape speed is a constant. Nevertheless, that's clearly the way it works in the connection diagram. The only reason remaining to do it that way would be to save costs creating an output circuit to take serial data and turn it into video, instead leveraging the fact that the Amiga already has everything you need to do that with its existing processing and video hardware. | |
| Aug 12, 2017 at 14:12 | comment | added | Leo B. | Also see ArVid. | |
| Aug 12, 2017 at 7:09 | comment | added | Brian H | Using the Amiga's mono video out for the recording only doesn't seem practical. Whatever the data rate is, I think it would have to be the same during both recording and playback, since the VCR probably runs at the same speed for both operations. | |
| Aug 12, 2017 at 5:34 | comment | added | mnem | I'm pretty sure it uses the actual composite video out of the Amiga to get the backup data to the VCR when recording, I would assume to allow higher backup speeds than the serial port would allow. bigbookofamigahardware.com/bboah/media/download_photos/vbs3.jpg | |
| Aug 12, 2017 at 0:18 | history | answered | Brian H | CC BY-SA 3.0 |
