{"id":7789,"date":"2021-10-06T13:00:00","date_gmt":"2021-10-06T11:00:00","guid":{"rendered":"https:\/\/spo-comm.sandboxsite.de\/good-to-know-what-is-ps-2\/"},"modified":"2025-04-01T12:00:17","modified_gmt":"2025-04-01T10:00:17","slug":"good-to-know-what-is-ps-2","status":"publish","type":"post","link":"https:\/\/spo-comm.de\/en\/good-to-know-what-is-ps-2\/","title":{"rendered":"Good to know: What is PS\/2?"},"content":{"rendered":"<p>The PS\/2 interface is a serial interface for input devices such as a mouse or keyboard (rarely: trackball or graphics tablet). It was used on PCs for a long time, but has been almost completely replaced by <a href=\"\/blog\/wissen\/was-ist-usb\">USB connections<\/a>. Nevertheless, due to certain technical differences (such as direct access via interrupts), it is still installed in many mainboards today.&nbsp; <\/p>\n<h2>The structure of a PS\/2 interface<\/h2>\n<p>A PS\/2 connection consists of 6 pins, with the following tasks:<\/p>\n<ul>\n<li>&nbsp;&nbsp;&nbsp;  Pin 1: Data transmission<\/li>\n<li>&nbsp;&nbsp;&nbsp;  Pin 2 &amp; 6: not connected<\/li>\n<li>&nbsp;&nbsp;&nbsp;  Pin 3: Ground connection<\/li>\n<li>&nbsp;&nbsp;&nbsp;  Pin 4: Supply voltage (+5V)<\/li>\n<li>&nbsp;&nbsp;&nbsp;  Pin 5: Clock signal<\/li>\n<\/ul>\n<p>There are basically two types of PS\/2 interfaces, one with two sockets (green: mouse and purple: keyboard; see Fig. 1) and one split, to which both can be connected (half green, half purple; see Fig. 2).  <\/p>\n<p>&nbsp;<\/p>\n<h2>Advantages of a PS\/2 interface<\/h2>\n<p>In certain applications, however, a PS\/2 interface also has advantages over USB. Firstly, the USB always transmits six commands simultaneously from the keyboard to the computer. This may not be enough for a fast bettor. The PS\/2 connection, on the other hand, transmits continuously, which reduces latency. On the other hand, this connection is also interesting for security reasons: While the USB port can also be &#8220;misused&#8221; for other devices, PS\/2 is only suitable for mouse and keyboard.  <\/p>\n<p>However, a keyboard that is used via the PS\/2 connection cannot be unplugged during operation without causing a crash. USB is much more flexible here thanks to hot plugging.  <\/p>\n<p><\/p>\n<h2>spo-comm Mini-PCs with PS\/2 connection:<\/h2>\n<p>In the spo-comm Mini-PC series, two systems are equipped with a PS\/2 interface. The <a href=\"\/produkte\/alle-mini-pcs\/nineteen-q370\">NINETEEN Q370<\/a> is equipped with two sockets and the <a href=\"\/produkte\/alle-mini-pcs\/nova-q170\">NOVA Q170<\/a> with one split socket.  <\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"\/produkte\/alle-mini-pcs\/nineteen-q370\" class=\"button\">Discover the NINETEEN Q370<\/a> <\/p>\n<p><a href=\"\/produkte\/alle-mini-pcs\/nova-q170\" class=\"button\">Discover the NOVA Q170<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nowadays it is hardly used any more, but its bright colors often catch the eye: the PS\/2 interface. In this article, we explain what such a connection is used for and which of our Mini PCs are equipped with it.<\/p>\n","protected":false},"author":1,"featured_media":5089,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[90],"tags":[],"class_list":["post-7789","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-know-how"],"acf":[],"_links":{"self":[{"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/posts\/7789","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/comments?post=7789"}],"version-history":[{"count":1,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/posts\/7789\/revisions"}],"predecessor-version":[{"id":17019,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/posts\/7789\/revisions\/17019"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/media\/5089"}],"wp:attachment":[{"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/media?parent=7789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/categories?post=7789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spo-comm.de\/en\/wp-json\/wp\/v2\/tags?post=7789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}