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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ

content/museum/open-university-uk-pt501.md

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+---
+title: OPEN UNIVERSITY, UK PT501
+categories:
+- Computers
+types:
+- Home Computer
+origins:
+- United Kingdom
+years:
+- '1979'
+cpus:
+- Intel
+params:
+  name: PT501
+  company: /companies/open-university-uk
+  company_name: OPEN UNIVERSITY, UK
+  specs:
+  - label: NAME
+    value: PT501
+  - label: MANUFACTURER
+    value: Open University, UK
+  - label: TYPE
+    value: Home Computer
+  - label: ORIGIN
+    value: United Kingdom
+  - label: YEAR
+    value: '1979'
+  - label: BUILT IN LANGUAGE
+    value: Monitor
+  - label: KEYBOARD
+    value: 21 keys Hexadecimal + function keys
+  - label: CPU
+    value: Intel
+  - label: SPEED
+    value: Unknown
+  - label: RAM
+    value: 128 byte? (holded into the 8049)
+  - label: ROM
+    value: Unknown
+  - label: TEXT MODES
+    value: 8-digit Led display
+  - label: I/O PORTS
+    value: None
+  - label: POWER SUPPLY
+    value: External AC adaptor
+  - label: PRICE
+    value: Unknown
+  comments:
+  - author: roger baldwin (UK)
+    date: Tuesday 26th November 2013
+    text: I have a PT501 in the original box with the manual, any idea what this would be worth? thanks
+  - author: JW
+    date: Saturday 30th March 2013
+    text: I used one of these too (when I was about 10!) I seem to recall this board also had a temperature sensor input. Didn''t do me any harm - I''m now a software engineer.
+  oc_id: 817
+  source:
+    url: https://web.archive.org/web/20230128073542/http://www.old-computers.com/museum/computer.asp?c=817
+    date: '2023-01-28'
+---
+
+Virtually no information about this training board that was provided, prior to the [Hektor PT602](/museum/open-university-uk-hektor-2/) with a Open University course called 'Microprocessors and Product Development - a course for managers'.
+
+The choice of the microprocessor is a bit surprising as the 8049 was more a microcontroller than a true microprocessor. Later, the 8049 will be commonly found inside dot-matrix and PC keyboards.
+
+More info needed!
+
+Thanks to **Chris Millard** for the picture.