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Description: Hmmm, let’s see: 192 RAM IC's out of a possible 256 (And every one is socketed…) 2114 = 1K x 4, so 512 bytes per IC 192 x 512 = 96KByte installed 256 x 512 = 128KByte maximum Kinda puts RAM quantities into perspective, doesn't it? For those of you keen enough to notice, I've already nabbed one of the sockets from a board ;-) Unfortunately these boards were taken out of their associated roller-cabinet (As a complete system – The cabinet itself had multiple printer ports on it) some years ago and we never thought to fire the system up. If anyone knows what these boards actually did, or if you’ve ever used or worked on one of these systems, get in touch! I’d be interested to know (For anyone browsing the internet, my email address is under my account page…). The board with the two larger IC's on it is labelled: Component side: 14801/B C/SIDE μC501 (SA800) FLOPPY DISC CONTROLLER HYPERON ® © COPYRIGHT 1978 Rear side: 14801/B NC/SIDE SER №3204 MOD 09 The board with the groups of DIP switches is labelled: Component side: HYPERON ® © 1979 15801/B C/SIDE Rear side: HYPERON ® © 1979 μC308 64K P/RAM 15801/B NC/SIDE SERIAL 5429 And the other two boards are labelled: Component side: HYPERON ® © 1979 C/SIDE 16301/B Rear side: HYPERON ® © 1979 16301/B NC/SIDE μC207 MULTIUSER MOD 08 SERIAL NO 4688 (And SERIAL NO 4691 respectively) Picture Stats: Views: 1814 Filesize: 291.05kB Height: 768 Width: 1024 Posted by: Hodgkinson at July 05, 2008, 06:18:08 PM Image Linking Codes
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| Hodgkinson Posts:1080 | July 14, 2008, 06:44:00 PM Please do :-D I've heard somewhere that PDP11's (Or some other old computers) used to use PCB's covered in fuses or diodes in matrixes that where blown open circuit to store the data. Imagine realising you'd missed out a character in some code somewhere and having to sit down for the next week or so swapping thousands of diodes :crazy: (Muhahaha, we should get the M$ devlopment team to try that one out...) |
| tokyoracer Posts:1590 | July 13, 2008, 04:45:12 PM Bah, nothin' that. There were 16k 'slices' you could get for this computer were my Dad worked (in the 70's) that were about the same size as modern PC ATX boxes. Will fish out and up-load the photograph if and when I find it. |
| Amigaz Posts:1959 | July 06, 2008, 09:23:00 AM The sure knew how to waste space back then I bet it's cards like these that were in the Singer System 10 computers we had at my work in the 70's/80's before the were replaced by some other monsters from ICL instead |