{"id":2887,"date":"2018-01-04T08:18:38","date_gmt":"2018-01-04T08:18:38","guid":{"rendered":"http:\/\/avitech.com.au\/?page_id=2887"},"modified":"2021-03-19T00:48:49","modified_gmt":"2021-03-19T00:48:49","slug":"dec-professional-300-series","status":"publish","type":"page","link":"https:\/\/avitech.com.au\/?page_id=2887","title":{"rendered":"DEC Professional 300 Series"},"content":{"rendered":"<p>This page relates to the DEC Professional 300 Series computers, such as the Pro 350 and Pro 380.<\/p>\n<p><span style=\"color: red;\"><em>Note: I am looking for a working copy of the CP\/M floppy disks to suit the Pro 300 Series.  If you have a copy of this, or know where one can be found, please let me know!<\/em><\/span><\/p>\n<h4>CP\/M Operating System<\/h4>\n<p>Thanks to a visitor to this website, I now know there is a set of CP\/M disks available in TeleDisk format on <a href=\"https:\/\/web.archive.org\/web\/20041209090002\/http:\/\/starfish.osfn.org\/rcs\/pdp-11\/Professional\/Pro-CPM\/\" rel=\"noopener\" target=\"_blank\">web.archive.org<\/a>.  However, apparently this set has significant errors that make them useless.  I no longer have a DEC Professional 300 series, so can&#8217;t test them.<\/p>\n<h4>P\/OS Operating System<\/h4>\n<p><a href=\"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"2892\" data-permalink=\"https:\/\/avitech.com.au\/?attachment_id=2892\" data-orig-file=\"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?fit=861%2C847&amp;ssl=1\" data-orig-size=\"861,847\" data-comments-opened=\"1\" data-image-title=\"pos-3059-label\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?fit=861%2C847&amp;ssl=1\" src=\"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?resize=300%2C295&#038;ssl=1\" alt=\"\" width=\"300\" height=\"295\" class=\"alignright size-medium wp-image-2892\" srcset=\"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?resize=300%2C295&amp;ssl=1 300w, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?resize=768%2C756&amp;ssl=1 768w, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?resize=150%2C148&amp;ssl=1 150w, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2018\/01\/pos-3059-label.jpg?w=861&amp;ssl=1 861w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>I found a set of 8 RX50 floppy disks, which appear to contain V1.5 of the P\/OS Operating System.  I don&#8217;t yet know whether this is a complete set.<\/p>\n<p>I have imaged the disks using Dave Dunfield&#8217;s ImageDisk software.  All the disks are the same format (80 tracks, single-sided, double-density, 250kbps, 10 sectors per track).<\/p>\n<p>All disks imaged without any errors. Here is a screen shot showing the result of a disk imaging operation -> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/imagedisk-screenshot.jpg\" rel=\"noopener\" target=\"_blank\">ImageDisk screen shot<\/a>.<\/p>\n<p>Here are the links to the disk labels (in JPG format) and disk images (in IMD format):<\/p>\n<ul>\n<li>BL-N633C-BH (P\/OS HARD DISK V1.5, SETUP): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3059-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3059.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N596C-BH (P\/OS HARD DISK V1.5, INSTRUCTION DISKETTE): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-2957-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-2957.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N634C-BH (P\/OS HARD DISK V1.5, SYSTEM OVERVIEW DISKETTE): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3064-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3064.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N638C-BH (P\/OS HARD DISK V1.5, LIBRARY): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3066-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3066.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N639C-BH (P\/OS HARD DISK V1.5, DISPATCH): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3067-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3067.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N640C-BH (P\/OS HARD DISK V1.5, PROSE): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3069-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3069.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N637C-BH (P\/OS HARD DISK V1.5, UTILITIES): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3099-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-3099.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<li>BL-N631C-BH (P\/OS HARD DISK V1.5, SYSTEM): <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-5002-label.jpg\" rel=\"noopener\" target=\"_blank\">JPG<\/a> <a href=\"http:\/\/www.avitech.com.au\/mm-files\/dec-300-series\/software\/pos-5002.imd\" rel=\"noopener\" target=\"_blank\">IMD<\/a><\/li>\n<\/ul>\n<h4><a name=\"revision-history\">Revision History<\/a><\/h4>\n<p>4 January 2018:<\/p>\n<ul>\n<li>Posted initial version<\/li>\n<\/ul>\n<p>19 March 2021:<\/p>\n<ul>\n<li>Added the link to TeleDisk CP\/M images on web.archive.org<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>This page relates to the DEC Professional 300 Series computers, such as the Pro 350 and Pro 380. Note: I am looking for a working copy of the CP\/M floppy disks to suit the Pro 300 Series. If you have a copy of this, or know where one can be found, please let me know! ..<\/p>\n<div class=\"clear-fix\"><\/div>\n<p><a href=\"https:\/\/avitech.com.au\/?page_id=2887\" title=\"read more...\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2887","page","type-page","status-publish","hentry"],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/P7xTsk-Kz","jetpack-related-posts":[{"id":3801,"url":"https:\/\/avitech.com.au\/?page_id=3801","url_meta":{"origin":2887,"position":0},"title":"DEC VT180 (aka &#8220;Robin&#8221;)","author":"malcolm","date":"4-April-2020","format":false,"excerpt":"This webpage has some notes about a few aspects of the DEC VT180. It is mostly focussed on Kermit, and the processing of making bootable floppy disks from images that already exist online. Note: To reset the VT180, press SETUP then 0. Using Kermit on the VT180 The \"VTKERMIT.P75\" disk\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":690,"url":"https:\/\/avitech.com.au\/?page_id=690","url_meta":{"origin":2887,"position":1},"title":"Floppy Disk Imaging","author":"malcolm","date":"2-July-2016","format":false,"excerpt":"Floppy disks that are recorded in conventional \"FM\" or \"MFM\" format can often be imaged, and images can be written back to real floppy disks, using commonly available older-model PCs and peripherals. This applies to disks recorded in the original IBM 3740 \"FM\" (single-density) specification, and those recorded in the\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"DSC_3424 (Large)","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2016\/07\/DSC_3424-Large-300x199.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":847,"url":"https:\/\/avitech.com.au\/?page_id=847","url_meta":{"origin":2887,"position":2},"title":"Dilog DQ419","author":"malcolm","date":"25-July-2016","format":false,"excerpt":"The Dilog DQ419, when coupled with one or two industry-standard 8-inch floppy drives, provides a PDP-11 QBUS system with an RX02-compatible floppy drive system. By \"industry-standard\" I mean a drive that is compatible with the 50-pin connector used on the Shugart 800\/850 8-inch drives. It is able to format, read\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"dq419-front","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2016\/07\/dq419-front-300x176.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":2660,"url":"https:\/\/avitech.com.au\/?page_id=2660","url_meta":{"origin":2887,"position":3},"title":"DEC RX33 Floppy Drive","author":"malcolm","date":"10-October-2017","format":false,"excerpt":"The RX33 is an 80-track double-sided 5.25\" floppy drive that was used by DEC in some PDP-11 and MicroVAX computers. It was also used in some other late-model DEC equipment as well, such as HSC cluster controllers. The only QBUS controller that supports the RX33 is the RQDX3. There was\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=700%2C400 2x, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=1050%2C600 3x, https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2017\/10\/20171010_185730_resized-e1507627053264.jpg?resize=1400%2C800 4x"},"classes":[]},{"id":3623,"url":"https:\/\/avitech.com.au\/?page_id=3623","url_meta":{"origin":2887,"position":4},"title":"Garage Sale on Sat 5 October 2019","author":"malcolm","date":"30-September-2019","format":false,"excerpt":"I'm doing something of a clean out of vintage computer gear, due to downsizing. This Saturday (5 October 2019) from 9am to 5pm. Factory 71, 22 Dunn Crescent, Dandenong Here's a partial list of what will be available (this list will be updated on Friday): The Free Pile DEC Networking\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":645,"url":"https:\/\/avitech.com.au\/?page_id=645","url_meta":{"origin":2887,"position":5},"title":"RQDX Breakout Board","author":"malcolm","date":"28-June-2016","format":false,"excerpt":"Quick Links Feel free to click on one of the links in this section to jump to the material you are looking for: Introduction \u00a0 Quickstart Guide \u00a0 Floppy Drives \u00a0 Hard Drives \u00a0 Miscellaneous \u00a0 Downloads \u00a0 Table of Contents \u00a0 Contact Details Introduction DEC made a series of\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"rqdx3-cropped","src":"https:\/\/i0.wp.com\/avitech.com.au\/wp-content\/uploads\/2016\/06\/rqdx3-cropped-300x175.jpg?resize=350%2C200","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/2887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/avitech.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2887"}],"version-history":[{"count":8,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/2887\/revisions"}],"predecessor-version":[{"id":4264,"href":"https:\/\/avitech.com.au\/index.php?rest_route=\/wp\/v2\/pages\/2887\/revisions\/4264"}],"wp:attachment":[{"href":"https:\/\/avitech.com.au\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}