{"id":21332,"date":"2025-06-19T09:32:45","date_gmt":"2025-06-19T13:32:45","guid":{"rendered":"https:\/\/carleton.ca\/scs\/?page_id=21332"},"modified":"2026-06-22T13:42:55","modified_gmt":"2026-06-22T17:42:55","slug":"vin50","status":"publish","type":"page","link":"https:\/\/carleton.ca\/scs\/vintage-computing\/item\/vin50\/","title":{"rendered":"Multitech Micro-Professor MPF-I"},"content":{"rendered":"\n<section class=\"w-screen px-6 cu-section cu-section--white ml-offset-center md:px-8 lg:px-14\">\n    <div class=\"space-y-6 cu-max-w-child-5xl  md:space-y-10 cu-prose-first-last\">\n\n            <div class=\"cu-textmedia flex flex-col lg:flex-row mx-auto gap-6 md:gap-10 my-6 md:my-12 first:mt-0 max-w-5xl\">\n        <div class=\"justify-start cu-textmedia-content cu-prose-first-last\" style=\"flex: 0 0 100%;\">\n            <header class=\"font-light prose-xl cu-pageheader md:prose-2xl cu-component-updated cu-prose-first-last\">\n                                    <h1 class=\"cu-prose-first-last font-semibold !mt-2 mb-4 md:mb-6 relative after:absolute after:h-px after:bottom-0 after:bg-cu-red after:left-px text-3xl md:text-4xl lg:text-5xl lg:leading-[3.5rem] pb-5 after:w-10 text-cu-black-700 not-prose\">\n                        Multitech Micro-Professor MPF-I\n                    <\/h1>\n                \n                                \n                            <\/header>\n\n                    <\/div>\n\n            <\/div>\n\n    <\/div>\n<\/section>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/carleton.ca\/scs\/vintage-computing\/item\">Vintage Computing Collection<\/a><\/div>\n<\/div>\n\n\n\n<h2 id=\"multitech-micro-professor-mpf-i\" class=\"wp-block-heading\">Multitech Micro-Professor MPF-I<\/h2>\n\n\n\n<p>[Vin50]<\/p>\n\n\n\n<p>The Multitech Micro-Professor MPF-I, launched in 1981, was a compact, book-shaped single-board computer designed primarily as an educational tool for learning Z80 assembly and machine code programming. Its most notable features included a Zilog Z80 CPU, a unique six-digit 7-segment LED display, a hexadecimal keypad, and a form factor that allowed it to be stored on a bookshelf like a textbook, complete with built-in storage for manuals and cassettes.<\/p>\n\n\n\n<figure class=\"wp-block-image alignright\"><a href=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"300\" src=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-400x300.jpg\" alt=\"Micro Professor MPF-I\" class=\"wp-image-21419\" srcset=\"https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-400x300.jpg 400w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-160x120.jpg 160w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-240x180.jpg 240w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-768x577.jpg 768w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-1536x1153.jpg 1536w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-2048x1538.jpg 2048w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-800x600.jpg 800w, https:\/\/carleton.ca\/scs\/wp-content\/uploads\/sites\/260\/PXL_20250623_181715161-360x270.jpg 360w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a><figcaption class=\"wp-element-caption\">Micro-Professor MPF-I<\/figcaption><\/figure>\n\n\n\n<p>Its claim to fame lies in its widespread use as a training computer in technical schools and colleges worldwide, helping a generation of engineers and programmers learn low-level computing and embedded systems design. The MPF-I was important in computing history as one of the first branded products from Multitech (which became Acer), and it became one of the longest-selling computers of its kind, with at least 10,000 units sold and ongoing production by Flite Electronics decades later.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Manufacturer<\/strong>: Multitech, a Taiwanese company that later became Acer<\/li>\n\n\n\n<li><strong>Type<\/strong>: Single-board microcomputer<\/li>\n\n\n\n<li><strong>Model<\/strong>: MPF-I<\/li>\n\n\n\n<li><strong>Release Date<\/strong>: 1981<\/li>\n\n\n\n<li><strong>Cost at release<\/strong>: USD $149 as a kit (CAD ~$584 adjusted for inflation)<\/li>\n\n\n\n<li><strong>MIPS<\/strong>: 0.58 (580 KIPS)<\/li>\n<\/ul>\n\n\n\n<h3 id=\"hardware-specifications\" class=\"wp-block-heading\"><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\n\n\n<ul class=\"wp-block-list\">\n<li><strong>CPU<\/strong>: Zilog Z80 microprocessor running at 1.79 MHz<\/li>\n\n\n\n<li><strong>RAM<\/strong>: 1 KB RAM (expandable via add-on boards)<\/li>\n\n\n\n<li><strong>ROM<\/strong>: 2 KB ROM (with monitor program and BASIC interpreter)<\/li>\n\n\n\n<li>Six-digit 7-segment LED display for output<\/li>\n\n\n\n<li>20-key hexadecimal keypad for input<\/li>\n\n\n\n<li>Cassette interface for program storage and loading<\/li>\n\n\n\n<li>Edge connector for expansion (I\/O, RAM, printer interface, etc.)<\/li>\n\n\n\n<li>Compact, book-shaped single-board design<\/li>\n\n\n\n<li>Built-in speaker for simple sound output<\/li>\n<\/ul>\n\n\n\n<h3 id=\"operating-system-programming-languages\" class=\"wp-block-heading\"><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}\">&nbsp;<\/span><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Operating System<\/strong>: The Micro-Professor MPF-I did not use a conventional operating system; instead, it relied on a 2 KB monitor ROM that provided basic system control, program entry, and debugging functions<\/li>\n\n\n\n<li><strong>Supported Languages:<\/strong> Programs could be written and run in Z80 machine code and assembly language, entered directly via the hexadecimal keypad<\/li>\n<\/ul>\n\n\n\n<h3 id=\"notables\" class=\"wp-block-heading\">Notables<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The MPF-I was Multitech\u2019s (later Acer\u2019s) first branded computer product and became one of the world\u2019s longest-selling computers.<\/li>\n\n\n\n<li>Its \u201cbook-like\u201d plastic case was designed to blend in on a bookshelf, storing manuals and cassettes inside\u2014a highly unusual form factor for a computer.<\/li>\n\n\n\n<li>It was nicknamed \u201cMicro-Professor\u201d and sometimes referred to as \u201cMPF-1,\u201d \u201cMPF-1A,\u201d or \u201cMPF-1B\u201d depending on the variant.<\/li>\n\n\n\n<li>The MPF-I was pivotal in education, widely used in technical schools and colleges for teaching Z80 assembly and machine code programming.<\/li>\n\n\n\n<li>Its hexadecimal keypad and six-digit 7-segment LED display made it look more like a calculator than a typical computer, which was unique for its era.<\/li>\n\n\n\n<li>The system\u2019s modularity allowed for easy expansion with additional ROMs, RAM, and peripherals, and it inspired a variety of third-party educational kits and add-ons, especially in Europe.<\/li>\n\n\n\n<li>The MPF-I\u2019s legacy includes its role in launching Acer as a global computer brand and its continued use in educational settings decades after its release<\/li>\n\n\n\n<li><\/li>\n<\/ul>\n\n\n\n<p><strong>Donated by<\/strong>: Arlen Michaels<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-fill\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/carleton.ca\/scs\/vintage-computing\/item\">Vintage Computing Collection<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Multitech Micro-Professor MPF-I [Vin50] The Multitech Micro-Professor MPF-I, launched in 1981, was a compact, book-shaped single-board computer designed primarily as an educational tool for learning Z80 assembly and machine code programming. Its most notable features included a Zilog Z80 CPU, a unique six-digit 7-segment LED display, a hexadecimal keypad, and a form factor that allowed [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":19704,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_cu_dining_location_slug":"","footnotes":"","_links_to":"","_links_to_target":""},"cu_page_type":[90,123],"class_list":["post-21332","page","type-page","status-publish","hentry","cu_page_type-vintage-computing","cu_page_type-vintage-inventory"],"acf":{"cu_post_thumbnail":""},"_links":{"self":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/21332","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/comments?post=21332"}],"version-history":[{"count":3,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/21332\/revisions"}],"predecessor-version":[{"id":25070,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/21332\/revisions\/25070"}],"up":[{"embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/pages\/19704"}],"wp:attachment":[{"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/media?parent=21332"}],"wp:term":[{"taxonomy":"cu_page_type","embeddable":true,"href":"https:\/\/carleton.ca\/scs\/wp-json\/wp\/v2\/cu_page_type?post=21332"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}