{"id":294,"date":"2020-08-18T19:23:47","date_gmt":"2020-08-18T20:23:47","guid":{"rendered":"http:\/\/www.linux-tutorial.info\/?page_id=77"},"modified":"2020-08-22T19:26:16","modified_gmt":"2020-08-22T20:26:16","slug":"this-is-the-page-title-toplevel-129","status":"publish","type":"page","link":"http:\/\/www.linux-tutorial.info\/?page_id=294","title":{"rendered":"Mice"},"content":{"rendered":"\n<title>Mice<\/title>\n<p>\nThe basic principle is that by moving the <glossary>mouse<\/glossary>,\n the <glossary>cursor<\/glossary>\n(pointer) on the screen moves in the same manner. Actions can be carried out by clicking one  of up\nto three buttons on the mouse.\n<\/p>\n<p>\nAs the mouse is moved across a surface, a ball underneath\nrolls along with it. This ball turns small wheels (usually three of them) inside the mouse. The\namount each wheel turns is measured and this movement is translated into the movement of the cursor.\n<\/p>\n<p>\nBecause the ball underneath must roll for the mouse to work, it has to remain on a flat\nsurface. The surface must also have a certain amount of friction for the ball to roll. Although you\ncan get a certain amount of movement by shaking the mouse, picking it up and expecting the cursor to\nmove is a waste of time.\n<\/p>\n<p>\nOriginally, mice were connected by a thin cable to the computer. As\ntechnology has progressed, the cable was done away with and replaced with a light-emitting diode\n(LED) on the mouse and a photodetector near the computer. This has the advantage of preventing the\ncable from tangling or getting buried under a pile of papers and thereby limiting the mouses\nmovement. The disadvantage is that the LED must remain within the line-of-sight of the photodetector\nto function. Some manufacturers have overcome this disadvantage by using an alternate form of light\nthat does not depend on line-of-sight: radio.\n<\/p>\n<p>\nAnother major problem with all of these kinds\nof mice is desk space. My desk is not neat. Space is at a premium. Even the small space needed for a\nmouse pad is a luxury that I rarely have. Fortunately, companies such as Logitech have heard my\ncries and come to the rescue. The solution is, as an old <glossary>UNIX<\/glossary> guru called it, a\ndead mouse.\n<\/p>\n<p>\nThis is a mouse that lies with its feet (or, at least, the ball) sticking up.\nRather than moving the mouse to move the ball to move the wheels to move the cursor, you simply move\nthe ball. The ball is somewhat larger than the one inside of a mouse, which makes it a lot easier to\nmove. Such a mouse is called a trackball and is very common with laptop computers. Provided the\nsignals sent to the <glossary>operating system<\/glossary> are the same, a trackball behaves\nsimilarly to a mouse.\n<\/p>\n<p>\nThe mouses interface to the operating system can take one of three\nforms. The mouse is referred to, based on this interface, as a <i>serial mouse<\/i>, <i>bus\nmouse<\/i>, or <i>keyboard mouse<\/i>.\n<\/p>\n<p>\nAs its name implies, a serial mouse is attached to your\ncomputer through a serial port. Bus mice have their own interface card that plugs into the\n<glossary>bus<\/glossary>.  Keyboard mice, despite their name, usually do not plug into the keyboard.\nThough I have seen some built into the keyboard, these were actually serial mice. Instead, a\nkeyboard mouse is plugged into its own connector, usually next to the keyboard connector, which is\nthen attached directly to the motherboard. These mice are usually found on IBM PS\/2 and some Compaq\ncomputers, though more computer manufacturers are providing a connector for a keyboard\nmouse.\n<\/p>\n<p>\nWhen people talk about the movement of the mouse, you often hear the term\n<i>resolution<\/i>. For a mouse, resolution is referred to in terms of clicks per inch, or CPI. A\nclick is simply the <glossary>signal<\/glossary> sent to the system to tell it that the mouse has\nmoved. The higher the CPI, the higher resolution. Both mice and trackballs have resolution, because\nboth rely on the movement of a ball to translate the movement of the cursor.\n<\/p>\n<p>\nKeep in mind that\ndespite how it appears at first, a mouse with a higher resolution is not necessarily more precise.\nIn fact, almost the opposite is true. Higher resolution means that the mouse moves <em>further<\/em>\nfor each given movement on the ball. The result is that the movement is <em>faster<i>,<\/i><\/em> not\nmore precise. Because precision is really determined by your own hand movement, experience has shown\nme that you get better precision with a mouse that has a lower resolution.\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mice The basic principle is that by moving the mouse, the cursor (pointer) on the screen moves in the same manner. Actions can be carried out by clicking one of up to three buttons on the mouse. As the mouse &hellip; <a href=\"http:\/\/www.linux-tutorial.info\/?page_id=294\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/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-294","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/pages\/294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=294"}],"version-history":[{"count":1,"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/pages\/294\/revisions"}],"predecessor-version":[{"id":626,"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=\/wp\/v2\/pages\/294\/revisions\/626"}],"wp:attachment":[{"href":"http:\/\/www.linux-tutorial.info\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}