{"id":518,"date":"2022-02-20T14:07:47","date_gmt":"2022-02-20T13:07:47","guid":{"rendered":"https:\/\/www.sinclaircollection.site\/?page_id=518"},"modified":"2024-05-22T20:32:27","modified_gmt":"2024-05-22T18:32:27","slug":"sinclair-zx-interface-2","status":"publish","type":"page","link":"https:\/\/www.sinclaircollection.site\/?page_id=518","title":{"rendered":"Sinclair ZX Interface 2"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"518\" class=\"elementor elementor-518\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-800eb56 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"800eb56\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8d69b35\" data-id=\"8d69b35\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-c0d1e99 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c0d1e99\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-394f26e\" data-id=\"394f26e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9996c83 elementor-widget elementor-widget-image\" data-id=\"9996c83\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"920\" height=\"737\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/12\/if2-1024x820.jpg\" class=\"attachment-large size-large wp-image-4903\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/12\/if2-1024x820.jpg 1024w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/12\/if2-300x240.jpg 300w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/12\/if2-768x615.jpg 768w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/12\/if2.jpg 1178w\" sizes=\"(max-width: 920px) 100vw, 920px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-c4d7c87\" data-id=\"c4d7c87\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c29901e elementor-widget elementor-widget-text-editor\" data-id=\"c29901e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p>Brand:&nbsp;<strong>Sinclair Research Ltd.<\/strong><br>Model:&nbsp;<strong>ZX Interface 2<\/strong><br>Country of origin:&nbsp;<strong>United Kingdom<\/strong><br>First year of production:&nbsp;<b>September 1983<\/b><br>Price: <strong>\u00a319.95<\/strong><\/p><p>Design:&nbsp;<b>John Mathieson<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-06e4f02 elementor-widget elementor-widget-text-editor\" data-id=\"06e4f02\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=7873\"><u>ZX Spectrum<\/u><\/a> didn&#8217;t natively have any joystick ports and instead relied on keyboard input. The ZX Interface 2 featured a combination of two joystick ports and a ROM cartridge slot.<\/p><p><i>(Text continues below the gallery)<\/i><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45d988f elementor-widget elementor-widget-image-gallery\" data-id=\"45d988f\" data-element_type=\"widget\" data-widget_type=\"image-gallery.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.23.0 - 05-08-2024 *\/\n.elementor-image-gallery .gallery-item{display:inline-block;text-align:center;vertical-align:top;width:100%;max-width:100%;margin:0 auto}.elementor-image-gallery .gallery-item img{margin:0 auto}.elementor-image-gallery .gallery-item .gallery-caption{margin:0}.elementor-image-gallery figure img{display:block}.elementor-image-gallery figure figcaption{width:100%}.gallery-spacing-custom .elementor-image-gallery .gallery-icon{padding:0}@media (min-width:768px){.elementor-image-gallery 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class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/03\/62_7_04-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/03\/62_7_04-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/03\/62_7_04-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon portrait'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"45d988f\" data-elementor-lightbox-title=\"Advertisement\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTEzODUsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzA1XC95b3VyX2NvbXB1dGVyXzE5ODQtMDFfMDMxLW0uanBnIiwic2xpZGVzaG93IjoiNDVkOTg4ZiJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/your_computer_1984-01_031-m.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/your_computer_1984-01_031-m-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/your_computer_1984-01_031-m-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/your_computer_1984-01_031-m-96x96.jpg 96w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9cdebd elementor-widget elementor-widget-text-editor\" data-id=\"f9cdebd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The ROM cartridge slot allowed users to load software instantly and without any errors. The availability of cartridge software was quite limited&#8212;only <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=520\" style=\"background-color: rgb(199, 1, 1);\"><u>ten cartridges<\/u><\/a> were released by Sinclair, while another seven planned games by Parker Brothers but were never released. Because there is no memory bank switching hardware, it would only support 16 Kb ROM cartridges.<br><\/p>\n<p>Unlike the popular single player Kempston interface, its dual player joystick ports were mapped to keys 6 to 0 for player 1 and keys 1 to 5 for player 2 using a single decoder IC (MT62001 MCE 8344).&nbsp;This mapping seemed at odds with Sinclair\u2019s own keyboard layout, where the cursor keys were mapped to 5 through 8, with 0 typically being used by games as a fire button. Games written before the release of the ZX Interface 2 would typically not support this new protocol, unless it had redefinable keys. Whereas the ROM cartridges never caught on, the Sinclair joystick protocol remained popular up to the final Spectrum model, the <a style=\"background-color: #c70101;\" href=\"https:\/\/www.sinclaircollection.site\/?page_id=439\"><u>ZX Spectrum +3<\/u><\/a>.<\/p>\n<p>The pass-through expansion bus would only fit a&nbsp;<a href=\"https:\/\/www.sinclaircollection.site\/?page_id=528\"><u>ZX Printer<\/u><\/a>&nbsp;with its narrower&nbsp;<a href=\"https:\/\/www.sinclaircollection.site\/?page_id=320\"><u>ZX81<\/u><\/a>-sized edge connector. The two little joystick connector plugs easily get lost.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Brand:&nbsp;Sinclair Research Ltd.Model:&nbsp;ZX Interface 2Country of origin:&nbsp;United KingdomFirst year of<\/p>\n<p><span class=\"more-link\"><a href=\"https:\/\/www.sinclaircollection.site\/?page_id=518\" class=\"readmore\">Continue reading<span class=\"screen-reader-text\">Sinclair ZX Interface 2<\/span><\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-518","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=518"}],"version-history":[{"count":43,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/518\/revisions"}],"predecessor-version":[{"id":11845,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/518\/revisions\/11845"}],"wp:attachment":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}