{"id":20416,"date":"2025-01-20T15:01:37","date_gmt":"2025-01-20T20:01:37","guid":{"rendered":"https:\/\/carleton.ca\/scs\/?page_id=20416"},"modified":"2025-05-23T15:59:18","modified_gmt":"2025-05-23T19:59:18","slug":"vin43","status":"publish","type":"page","link":"https:\/\/carleton.ca\/scs\/vintage-computing\/item\/vin43\/","title":{"rendered":"Synertek SYM-1"},"content":{"rendered":"<h2>Synertek SYM-1<\/h2>\n<p>[vin43]<a href=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-scaled.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-large wp-image-20964\" src=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-400x300.jpg\" alt=\"Synertek SYM-1 \" width=\"400\" height=\"300\" srcset=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-400x300.jpg 400w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-240x180.jpg 240w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-160x120.jpg 160w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-768x577.jpg 768w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-1536x1153.jpg 1536w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-2048x1538.jpg 2048w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-800x600.jpg 800w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/PXL_20250505_194054835-360x270.jpg 360w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p>The Synertek SYM-1 was a pioneering single board computer introduced in 1975, designed by Ray Holt for Synertek Systems. It was a significant product in the early microcomputer era, offering a complete and versatile platform for learning and development. The Synertek SYM-1 was a single-board &#8220;trainer&#8221; computer notable for its use of the 6502 processor, enhanced monitor ROM, expandable RAM, and versatile I\/O options, including an RS-232 serial port and a unique oscilloscope display interface. Its claim to fame was being a more advanced, compatible successor to the KIM-1, offering features like vectored I\/O routines and high-speed cassette storage, which made it popular for education, hobbyists, and as a development platform, selling\u00a0 ~50,000 units<\/p>\n<ul>\n<li><strong>Manufacturer<\/strong>: Synertek<\/li>\n<li><strong>Release Date<\/strong>: 1975<\/li>\n<li><strong>Cost at release<\/strong>: USD $240 (CAD ~$1,000 adjusted for inflation)<\/li>\n<li><strong>Cost with peripherals<\/strong>: USD $800 (CAD ~$3,300 adjusted for inflation)<\/li>\n<\/ul>\n<h3><span class=\"TextRun SCXW36078203 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW36078203 BCX0\">Hardware Specifications<\/span><\/span><\/h3>\n<ul>\n<li><strong>CPU<\/strong>: Synertek 6502 running at 1 MHz<\/li>\n<li><strong>Memory<\/strong>\n<ul>\n<li>RAM: 1 KB expandable to 4 KB on-board<\/li>\n<li>ROM: 4 KB (expandable to 24 KB)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Ports<\/strong>:\n<ul>\n<li>28-key dual-function keyboard<\/li>\n<li>6-digit LED display<\/li>\n<li>48 programmable parallel I\/O lines (expandable to 71)<\/li>\n<li>Serial interface (RS-232 and teletype compatible)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Storage<\/strong>: Audio cassette interface<\/li>\n<li><strong>Dimensions<\/strong>: 10.75&#8243; x 8.25&#8243; x 0.5&#8243;<\/li>\n<li><strong>Power<\/strong>: Single 5V power supply<\/li>\n<\/ul>\n<h3><span class=\"TextRun SCXW136206418 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun SCXW136206418 BCX0\">Operating System &amp; Programming Languages<\/span><\/span><span class=\"EOP SCXW136206418 BCX0\" data-ccp-props=\"{&quot;335559685&quot;:0}\">\u00a0<\/span><\/h3>\n<ul class=\"marker:text-textOff list-disc\">\n<li>\n<p class=\"my-0\"><strong>Operating System<\/strong>: Supermon monitor<\/p>\n<\/li>\n<li>\n<p class=\"my-0\"><strong>Supported Languages<\/strong>: 6502 assembly (via its built-in monitor and optional Resident Assembler\/Editor), BASIC (through an add-on ROM), and could also run languages like Pascal, Forth, and even C with appropriate software tools and configuration<\/p>\n<\/li>\n<\/ul>\n<h3>Notables<\/h3>\n<ul class=\"marker:text-textOff list-disc\">\n<li>\n<p class=\"my-0\">The SYM-1 was originally called the VIM-1 (Versatile Input Monitor) and was designed by Ray Holt as a more advanced, compatible successor to the KIM-1<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">It featured unique capabilities for its time, such as allowing an oscilloscope to be used as a 32-character display and included a high-speed (185 bytes\/second) cassette storage interface-much faster than its competitors<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">The SYM-1 included a sophisticated monitor ROM (Supermon) with vectored I\/O, making it easy to interface with new hardware and develop custom routines-an approach later seen in the BBC Micro<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">It was known for its robust I\/O lines, expandability, and the ability to run on a single +5V power supply, making it popular for education, prototyping, and embedded applications<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">The SYM-1 was sometimes referred to as the VIM-1 in early documentation and circles<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">While not as widely recognized as some contemporaries, it sold about 50,000 units and played a significant role in early microcomputer development and education, especially as a trainer and for hardware interfacing<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">Its flexible ROM sockets allowed users to add languages like BASIC, Resident Assembler\/Editor, and Macro Assembler, making it adaptable for various uses<\/p>\n<\/li>\n<li>\n<p class=\"my-0\">The SYM-1\u2019s design and documentation inspired a dedicated user community and newsletters, such as the SYM-Physis User Group<\/p>\n<\/li>\n<\/ul>\n<p><\/p>\n<p><strong>Donated by<\/strong>: Arlen Michaels<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Synertek SYM-1 [vin43] The Synertek SYM-1 was a pioneering single board computer introduced in 1975, designed by Ray Holt for Synertek Systems. It was a significant product in the early microcomputer era, offering a complete and versatile platform for learning and development. The Synertek SYM-1 was a single-board &#8220;trainer&#8221; computer notable for its use of [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"parent":19704,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","_mi_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":"","_links_to":"","_links_to_target":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Synertek SYM-1 - School of Computer Science<\/title>\n<meta name=\"description\" content=\"Synertek SYM-1 The Synertek SYM-1 was a pioneering single board computer introduced in 1975, designed by Ray Holt for Synertek Systems. 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