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6,654 pages: 1,289 machines, 702 software, 460 companies, 64 history, 17 articles, 59 fun. 4,336 media files so far; references to files not downloaded yet are left out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
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+---
+title: Independant Business Systems BetaSystem
+categories:
+- Computers
+types:
+- Professional Computer
+origins:
+- U.S.A.
+years:
+- '1982'
+cpus:
+- Z80
+params:
+  name: BetaSystem
+  company: /companies/independant-business-systems
+  company_name: Independant Business Systems
+  specs:
+  - label: NAME
+    value: BetaSystem
+  - label: MANUFACTURER
+    value: Independant Business Systems
+  - label: TYPE
+    value: Professional Computer
+  - label: ORIGIN
+    value: U.S.A.
+  - label: YEAR
+    value: '1982'
+  - label: KEYBOARD
+    value: Video/keyboard serial terminal
+  - label: CPU
+    value: Z80
+  - label: SPEED
+    value: 4 Mhz.
+  - label: RAM
+    value: 128 KB per Z80 card
+  - label: ROM
+    value: 2 KB
+  - label: TEXT MODES
+    value: Unknown
+  - label: GRAPHIC MODES
+    value: Unknown
+  - label: COLORS
+    value: Unknown
+  - label: SOUND
+    value: Unknown
+  - label: SIZE / WEIGHT
+    value: Unknown
+  - label: I/O PORTS
+    value: Unknown
+  - label: OS
+    value: USCD PASCAL, CP/M, TURBODOS
+  - label: POWER SUPPLY
+    value: Built-in P.S.U.
+  - label: PERIPHERALS
+    value: S-100 boards
+  - label: PRICE
+    value: Unknown
+  tabs:
+  - adverts
+  adverts:
+  - title: 36 MHZ. IN 1982?
+    subtitle: ''
+    text: The title of this advert was very optimistic. In fact, the 36 Mhz speed is obtained by adding the speed of the 9 x Z80 cards installed into the system. The maximum system speed was in fact 4 Mhz.
+    image: null
+  - title: 64 BITS IN 1983?
+    subtitle: ''
+    text: |-
+      After the optimistic 36 Mhz. speed, here is the 64 bits processing power... with 8 bits/Z80 cards. Here also, the 64 bits 'power' is obtained by putting eight 8 bits cards together in the case.\
+      Not a very honest way to sell a computer that is no more than a classic S-100 / Z80 based system with some multi-user capabilities.
+    image: null
+  oc_id: 592
+  source:
+    url: https://web.archive.org/web/20230416215944/http://www.old-computers.com/museum/computer.asp?c=592
+    date: '2023-04-16'
+---
+
+The BetaSystem was a S-100 BUS based system using a complete computer Z80 card that could handle two time-shared users. Up to nine cards could be installed in the case allowing up to 18 users / video terminals to be connected and used simultaneously.
+
+As usual with S-100 based systems, a large range of storage devices could be added to the system: 5.25", 8" or 14" Winchester disk drives from 5 MB to 600 MB, 5.25" or 8" floppies, and tape cartridges up to 100 MB.
+
+Mainly based on the UCSD PASCAL operating system, the BetaSystem could also be used with CP/M and TurboDos O.S.
+
+<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>