PDP-11/73 - Revision history

Vaxorcist: /* OS */ Fixed typos and added some more operating systems

2025-10-31T16:40:30Z

‎OS: Fixed typos and added some more operating systems

Jnc: typo

2025-01-10T19:15:19Z

typo

ForOldHack: /* From Digital */ Added the Micro version of RSX-11M

2025-01-10T18:42:16Z

‎From Digital: Added the Micro version of RSX-11M

ForOldHack: /* External links */ added earler handbook, 1983 vs 1987

2025-01-10T17:59:53Z

‎External links: added earler handbook, 1983 vs 1987

Jnc: Better layout; fix error in hampage excerpt

2024-10-10T14:41:57Z

Better layout; fix error in hampage excerpt

Jnc: /* External links */ +PDP-11 Systems Handbook

2024-02-29T21:26:19Z

‎External links: +PDP-11 Systems Handbook

Jnc: /* */ +MicroPDP-11 manuals

2023-02-21T12:19:02Z

‎: +MicroPDP-11 manuals

Jnc: Explain /7-/83 difference

2022-06-17T16:43:06Z

Explain /7-/83 difference

Vaxorcist: BA23 link added

2022-06-16T09:45:00Z

BA23 link added

Jnc: -semist

2022-05-18T21:59:25Z

-semist

@@ Line 5: / Line 5: @@
 == OS ==
-The PDP-11/73 and PDP-11/83 Micro PDPs ran RXS-11 M, RXS-11 M Plus, and BSD
+The PDP-11/73 and PDP-11/83 Micro PDPs ran [[RSX-11M]], [[RSX-11M-Plus]], [[Micro/RSX]], [[ULTRIX-11]], and BSD
 == hampage.hu ==

@@ Line 2: / Line 2: @@
 The '''PDP-11/73''' is a high-end [[QBUS]] [[PDP-11]] system. Confusingly, the [[Central Processing Unit|CPU]] board is the [[KDJ11-B]] (M8190), the same as the [[PDP-11/83]] - no [[Digital Equipment Corporation|DEC]] '-11/xx' system seems to use the earlier [[KDJ11-A]] (M8192). (The ''Microcomputer Products Handbook'' does refer to the KDJ11-A as the "LSI-11/73 microcomputer", however.)
-The difference between the /73 and /83 is that the latter uses [[Private Memory Interconnect|PMI]] [[main memory]], instead as the QBUS memory of the -11/73.
+The difference between the /73 and /83 is that the latter uses [[Private Memory Interconnect|PMI]] [[main memory]], instead of the QBUS memory of the -11/73.
 == OS ==

← Older revision		Revision as of 18:42, 10 January 2025
Line 3:		Line 3:

	The difference between the /73 and /83 is that the latter uses [[Private Memory Interconnect\|PMI]] [[main memory]], instead as the QBUS memory of the -11/73.		The difference between the /73 and /83 is that the latter uses [[Private Memory Interconnect\|PMI]] [[main memory]], instead as the QBUS memory of the -11/73.
		+
		+	== OS ==
		+	The PDP-11/73 and PDP-11/83 Micro PDPs ran RXS-11 M, RXS-11 M Plus, and BSD

	== hampage.hu ==		== hampage.hu ==

@@ Line 30: / Line 30: @@
 * [https://vt100.net/mirror/antonio/ek-mic11-sg-001.pdf MicroPDP-11 Systems Maintenance Guide] (EK-MIC11-SG-001)
 * [http://bitsavers.org/pdf/dec/pdp11/handbooks/PDP-11_Systems_Handbook_1987.pdf PDP-11 Systems Handbook]
 {{PDP-11}}
 [[Category: QBUS PDP-11s]]

@@ Line 1: / Line 1: @@
-[[Image:pdp11-73.jpg|150px|thumb|right|PDP-11/73]]
+[[Image:mpdp73.jpg|right|thumb|200px|PDP-11/73]]
-The '''PDP-11/73''' is a high-end [[QBUS]] [[PDP-11]] system. Confusingly, the [[Central Processing Unit|CPU]] board is the [[KDJ11-B]] (M8190), the same as the [[PDP-11/83]] - no [[DEC]] '-11/xx' system seems to use the earlier [[KDJ11-A]] (M8192). (The ''Microcomputer Products Handbook'' does refer to the KDJ11-A as the "LSI-11/73 microcomputer", however.)
+The difference between the /73 and /83 is that the latter uses [[Private Memory Interconnect|PMI]] [[main memory]], instead as the QBUS memory of the -11/73.
 == hampage.hu ==
 Quoting:
 <i>
 Introduced in 1984. Successor of the [[PDP-11/23]]. At that time the components were VLSI, and these PDP-11's were marketed as MicroPDP's (this has in fact begun with the PDP-11/23). The PDP-11/73 had a 15MHz [[J-11 chip set]]-based CPU with 22-bit memory management for the 4MB RAM max. Just to make life more complicated, 18 MHz PDP-11/83 CPU boards can also be found in PDP-11/73 systems, as a PDP-11/83 CPU (M8190-A[DE]) with QBUS memory (instead of the PMI memory used in those systems) is called a PDP-/73...
-There was no UNIBUS equivalent.
+There was no UNIBUS equivalent.</i>(Incorrect. The [[PDP-11/84]] shared the same CPU, and had a [[UNIBUS]].)<i>
 The J-11 was manufactured by Harris Semiconductors, and it hasn't been fully completed, it lacked the WCS and CIS options.
-A very popular enclosure is displayed to the left: this was the [[BA23 Enclosure|BA23]] standing tower configuration, that had place for a 8x4 backplane, an [[RX50]] floppy or [[TK50]] streaming tape drive and an RDxx harddisk. The BA23 could also be rack-mounted.
+A very popular enclosure is displayed to the right: this was the [[BA23 Enclosure|BA23]] standing tower configuration, that had place for a 8x4 backplane, an [[RX50]] floppy or [[TK50]] streaming tape drive and an RDxx hard disk. The BA23 could also be rack-mounted.
 </i>
 {{semi-stub}}