{"id":1477,"date":"2022-02-27T23:14:53","date_gmt":"2022-02-27T22:14:53","guid":{"rendered":"https:\/\/www.sinclaircollection.site\/?page_id=1477"},"modified":"2025-09-09T21:57:28","modified_gmt":"2025-09-09T19:57:28","slug":"sinclair-zx80","status":"publish","type":"page","link":"https:\/\/www.sinclaircollection.site\/?page_id=1477","title":{"rendered":"Sinclair ZX80"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"1477\" class=\"elementor elementor-1477\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9e0e70e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9e0e70e\" 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-2e69b7d\" data-id=\"2e69b7d\" 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-d47f2fc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d47f2fc\" 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-16dba1b\" data-id=\"16dba1b\" 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-52dbdea elementor-widget elementor-widget-image\" data-id=\"52dbdea\" 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=\"835\" height=\"1024\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk-835x1024.jpg\" class=\"attachment-large size-large wp-image-6702\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk-835x1024.jpg 835w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk-245x300.jpg 245w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk-768x941.jpg 768w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk-1253x1536.jpg 1253w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2023\/05\/000zx80uk.jpg 1387w\" sizes=\"(max-width: 835px) 100vw, 835px\" \/>\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-316079e\" data-id=\"316079e\" 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-4cfa63e elementor-widget elementor-widget-text-editor\" data-id=\"4cfa63e\" 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:\u00a0<strong>Science of Cambridge Ltd.<br \/><\/strong>Model:\u00a0<strong>ZX80<br \/><\/strong>Country of origin:\u00a0<strong>United Kingdom<br \/><\/strong>Launch date: <b>29 January\u00a0<\/b><strong>1980<\/strong><br \/>Price in UK: <b>\u00a399.95<\/b> assembled \/ <b>\u00a379.95<\/b> kit<br \/>Price in NL:\u00a0<b>\u0192 499,-<\/b> \/\u00a0<b>\u0192 199<\/b> (1982)<\/p><p>Board design: <b>Jim Westwood<\/b><br \/>Software:\u00a0<span style=\"font-weight: bold;\">John Grant<\/span>\u00a0(at Nine Tiles Ltd.)<br \/>Case design: <b>John Pemberton<\/b><\/p><p>Dimensions:\u00a0<span style=\"font-weight: bold;\">174 \u00d7 219 \u00d7 36.5 mm<\/span><br \/>Weight:\u00a0<span style=\"font-weight: bold;\">294 g<\/span><\/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-19417db elementor-widget elementor-widget-text-editor\" data-id=\"19417db\" 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 first home computer made by Sinclair, if you don&#8217;t consider the MK14 and the <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=7717\"><u>NewBrain<\/u><\/a>\u00a0before it. It was the first sub \u00a3100 personal computer.\u00a0<\/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-bd5804e elementor-widget elementor-widget-image-gallery\" data-id=\"bd5804e\" 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 .gallery-columns-2 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data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTAzLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV83X3p4ODAtOGsuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_7_zx80-8k.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_7_zx80-8k-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Connected to a TV confirming it&#039;s working\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTA1LCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV85X0RTQ180MzExLmpwZyIsInNsaWRlc2hvdyI6ImJkNTgwNGUifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_9_DSC_4311.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_9_DSC_4311-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"bd5804e\" data-elementor-lightbox-title=\"Computer, power supply, audio cable, manual, RAM Pack\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6OTc4OSwidXJsIjoiaHR0cHM6XC9cL3d3dy5zaW5jbGFpcmNvbGxlY3Rpb24uc2l0ZVwvd3AtY29udGVudFwvdXBsb2Fkc1wvMjAyNFwvMDVcLzEtMTAtMWEucG5nIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/1-10-1a.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/1-10-1a-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/1-10-1a-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/1-10-1a-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/1-10-1a-96x96.png 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 landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"bd5804e\" data-elementor-lightbox-title=\"ZX80 and 1-3K Byte Ram Pack\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTI1NjQsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzEwXC96eDgwLTEtM2stcmFtLXBhY2sucG5nIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/10\/zx80-1-3k-ram-pack.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/10\/zx80-1-3k-ram-pack-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/10\/zx80-1-3k-ram-pack-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/10\/zx80-1-3k-ram-pack-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/10\/zx80-1-3k-ram-pack-96x96.png 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=\"bd5804e\" data-elementor-lightbox-title=\"Polystyrene foam box\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTI2NzcsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzExXC9QaG90b3Jvb20tMjAyNDExMDJfMjAyNzEyLnBuZyIsInNsaWRlc2hvdyI6ImJkNTgwNGUifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202712.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202712-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202712-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202712-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202712-96x96.png 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=\"bd5804e\" data-elementor-lightbox-title=\"Polystyrene foam box and mailer box\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTI2NzgsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzExXC9QaG90b3Jvb20tMjAyNDExMDJfMjAyNDMzLnBuZyIsInNsaWRlc2hvdyI6ImJkNTgwNGUifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202433.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202433-150x150.png\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202433-150x150.png 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202433-666x666.png 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/11\/Photoroom-20241102_202433-96x96.png 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=\"bd5804e\" data-elementor-lightbox-title=\"ZX80 8K ROM fitting instructions\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTA3LCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xMV9EU0NfNDMzMi5qcGciLCJzbGlkZXNob3ciOiJiZDU4MDRlIn0%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_11_DSC_4332.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_11_DSC_4332-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 1\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTEwLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xNF96eDgwLTIuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_14_zx80-2.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_14_zx80-2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 2\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTEyLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xNl96eDgwLTQuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_16_zx80-4.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_16_zx80-4-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 3\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTExLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xNV96eDgwLTMuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_15_zx80-3.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_15_zx80-3-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 4\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTEzLCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xN196eDgwLTUuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_17_zx80-5.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_17_zx80-5-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 5\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE1LCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xOV96eDgwLTcuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_19_zx80-7.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_19_zx80-7-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 6\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE0LCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8xOF96eDgwLTYuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_18_zx80-6.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_18_zx80-6-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/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=\"bd5804e\" data-elementor-lightbox-title=\"Kit assembly instructions 7\/7\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTE2LCJ1cmwiOiJodHRwczpcL1wvd3d3LnNpbmNsYWlyY29sbGVjdGlvbi5zaXRlXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIyXC8wMlwvMV8yMF96eDgwLTguanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_20_zx80-8.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2022\/02\/1_20_zx80-8-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-slideshow=\"bd5804e\" data-elementor-lightbox-title=\"Advertisement\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTEzODksInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjRcLzA1XC9hZHZlXzAwNy1tLmpwZyIsInNsaWRlc2hvdyI6ImJkNTgwNGUifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/adve_007-m.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/adve_007-m-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/adve_007-m-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/adve_007-m-666x666.jpg 666w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2024\/05\/adve_007-m-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=\"bd5804e\" data-elementor-lightbox-title=\"Dutch advertisement November 1980\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTMzMTMsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzA5XC91cHNjYWxlbWVkaWEtdHJhbnNmb3JtZWQuanBnIiwic2xpZGVzaG93IjoiYmQ1ODA0ZSJ9\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/upscalemedia-transformed.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/upscalemedia-transformed-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/upscalemedia-transformed-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/upscalemedia-transformed-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=\"bd5804e\" data-elementor-lightbox-title=\"Dutch advertisement December 1981\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTMyOTAsInVybCI6Imh0dHBzOlwvXC93d3cuc2luY2xhaXJjb2xsZWN0aW9uLnNpdGVcL3dwLWNvbnRlbnRcL3VwbG9hZHNcLzIwMjVcLzA5XC96eDgwLWRlYy0xOTgxLmpwZyIsInNsaWRlc2hvdyI6ImJkNTgwNGUifQ%3D%3D\" href='https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/zx80-dec-1981.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/zx80-dec-1981-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/zx80-dec-1981-150x150.jpg 150w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/zx80-dec-1981-609x613.jpg 609w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/zx80-dec-1981-96x96.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-95cb35e elementor-widget elementor-widget-text-editor\" data-id=\"95cb35e\" 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>Networking company Nine Tiles Ltd. was founded by John Grant. Sinclair met with Grant in April 1979 to discuss the BASIC interpreter for the ZX80. To keep its cost low, the integer BASIC had to fit in a 4 Kb ROM. Between June and July Grant wrote the code which was 5 Kb in size&#8212;the following month was spent get it to fit it in the ROM thereby sacrificing commands such as DATA, READ, RESTORE . Sinclair never paid royalties, Nine Tiles was paid when Amstrad bought the rights to the ROM. Nine Tiles still owns the right to the ZX80 and\u00a0<a style=\"background-color: #c70101;\" href=\"https:\/\/www.sinclaircollection.site\/?page_id=320\"><u>ZX81<\/u><\/a>\u00a0ROMs to this day.<\/p><p>The thin case halves are vacuum formed and very prone to cracks to even missing edges, where the plastic rivets fasten the two halves together. Later models such as the <a style=\"background-color: #c70101;\" href=\"https:\/\/www.sinclaircollection.site\/?page_id=252\"><u>US version<\/u><\/a> were injection moulded and less susceptible to cracks. The &#8220;go faster&#8221; stripes on top of the case are no real cooling holes, although some users would drill holes <img decoding=\"async\" class=\"emoji\" role=\"img\" draggable=\"false\" src=\"https:\/\/s.w.org\/images\/core\/emoji\/16.0.1\/svg\/1f631.svg\" alt=\"\ud83d\ude31\" \/> to help cooling down the computer.<\/p><p>The ZX80 could be upgraded with a 8 Kb\u00a0<span style=\"background-color: #c70101;\">ZX81<\/span>\u00a0ROM (\u00a319.95), although it would lack the hardware to support the &#8216;FAST&#8217; command. The upgrade did include a new keyboard overlay. Support for &#8216;SLOW&#8217; and &#8216;FAST&#8217; could be added with a little PCB.<\/p><p>Memory upgrades could be in the form of a\u00a0<a href=\"https:\/\/www.sinclaircollection.site\/?page_id=12581\" target=\"_blank\" rel=\"noopener\"><u>1-3Kb Ram Pack<\/u><\/a>\u00a0or some time later when memory chip prices dropped, a <a href=\"https:\/\/www.sinclaircollection.site\/?page_id=12589\"><u>16Kb Ram Pack<\/u><\/a>.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6852f37 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6852f37\" 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-2a028ac\" data-id=\"2a028ac\" 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-920ec9d elementor-widget elementor-widget-text-editor\" data-id=\"920ec9d\" 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 ZX80 could be upgraded with a 8 Kb&nbsp;ZX81&nbsp;ROM (\u00a319.95), although it would lack the hardware to support the &#8216;FAST&#8217; command. The upgrade did include a new keyboard overlay. Support for &#8216;SLOW&#8217; and &#8216;FAST&#8217; could be added with a little PCB.<\/p>\n<p>Memory upgrades could be in the form of a&nbsp;<a href=\"https:\/\/www.sinclaircollection.site\/?page_id=12581\"><u>1\u2013<span style=\"background-color: rgb(199, 1, 1);\">3Kb Ram Pack<\/span><\/u><\/a>&nbsp;or some time later when memory chip prices had dropped, a&nbsp;<a href=\"https:\/\/www.sinclaircollection.site\/?page_id=12589\" style=\"background-color: rgb(199, 1, 1);\"><u>16Kb Ram Pack<\/u><\/a>.<\/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<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-646f4b5\" data-id=\"646f4b5\" 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-63dbd88 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"63dbd88\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"255\" height=\"355\" src=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/Radio_Bulletin_1982_07_0067.jpg\" class=\"attachment-medium_large size-medium_large wp-image-13302\" alt=\"\" srcset=\"https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/Radio_Bulletin_1982_07_0067.jpg 255w, https:\/\/www.sinclaircollection.site\/wp-content\/uploads\/2025\/09\/Radio_Bulletin_1982_07_0067-215x300.jpg 215w\" sizes=\"(max-width: 255px) 100vw, 255px\" \/>\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\t<\/div>\n\t\t<\/section>\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:\u00a0Science of Cambridge Ltd.Model:\u00a0ZX80Country of origin:\u00a0United KingdomLaunch date: 29 January\u00a01980Price<\/p>\n<p><span class=\"more-link\"><a href=\"https:\/\/www.sinclaircollection.site\/?page_id=1477\" class=\"readmore\">Continue reading<span class=\"screen-reader-text\">Sinclair ZX80<\/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-1477","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/1477","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=1477"}],"version-history":[{"count":127,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/1477\/revisions"}],"predecessor-version":[{"id":13316,"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=\/wp\/v2\/pages\/1477\/revisions\/13316"}],"wp:attachment":[{"href":"https:\/\/www.sinclaircollection.site\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}