{"id":1298,"date":"2016-04-25T22:39:37","date_gmt":"2016-04-25T22:39:37","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/?p=1298"},"modified":"2016-04-25T22:39:37","modified_gmt":"2016-04-25T22:39:37","slug":"higher-technical-implementation-hardware-requirements-revision","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2016\/04\/25\/higher-technical-implementation-hardware-requirements-revision\/","title":{"rendered":"Higher &#8211; Technical  Implementation Hardware  Requirements &#8211; Revision"},"content":{"rendered":"<p>Comparison of<\/p>\n<ul>\n<li><strong>input devices<\/strong>\n<ul>\n<li>Digital Camera\n<ul>\n<li>Resolution &#8211; Measured in mega pixels, typically the larger the better.<\/li>\n<li>Optical Zoom &#8211; How close you can make the image appear without losing any quality.<\/li>\n<\/ul>\n<\/li>\n<li>Touch Screen\n<ul>\n<li>Resistive &#8211; Single touch<\/li>\n<li>Capacitive &#8211; Multi touch<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>output devices<\/strong>\n<ul>\n<li>Printers\n<ul>\n<li>Resolution &#8211; Measured in DPI (dots per inch)<\/li>\n<li>Speed &#8211; Measured in PPM (pages per minute)<\/li>\n<li>Type &#8211; Laser or Ink Jet<\/li>\n<\/ul>\n<\/li>\n<li>Monitors\n<ul>\n<li>Size &#8211; Measured diagonally in inches (9&#8243;,21&#8243;)<\/li>\n<li>Resolution &#8211; Measured in pixels (1920&#215;1080)<\/li>\n<li>Type &#8211; LCD\/TFT uses a flat panel of coloured cells to change the colour of the light shining through it. OLED uses a \u00a0matrix of tiny LEDs to produce an image.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>processor type<\/strong> &#8211; How many bits can be processed in a single operation (16bit, 32bit, 64bit )<\/li>\n<li><strong>number of processors<\/strong> &#8211; Single Core, the processor can appear to do more than one thing at a time using time slicing. \u00a0Multi core, different processes are run on different cores.<\/li>\n<li><strong>Processor speed (Hz)<\/strong> &#8211; The number of\u00a0times per second the processors voltage is switched, this allows the processor to carry out an operation. Typically measured in Gigahertz (GHz).<\/li>\n<li><strong>memory<\/strong>\n<ul>\n<li><strong>RAM<\/strong> &#8211; Volatile, losses contents when power disconnected. Dynamic, requires constant refreshing to remember contents.<\/li>\n<li><strong>ROM<\/strong> &#8211; Non Volatile, contents kept when power disconnected. Not writeable, contents can not be changed.<\/li>\n<li><strong>cache<\/strong> &#8211; Located on (or very near) processor. Static, contents do not need refreshing.<\/li>\n<\/ul>\n<\/li>\n<li><strong>device type<\/strong>\n<ul>\n<li><strong>Desktop<\/strong> &#8211; Used for tasks that require a fair amount of processing power and storage.<\/li>\n<li><strong>Laptop<\/strong> &#8211; Portable devices that use a battery and keyboard.<\/li>\n<li><strong>Tablet<\/strong> &#8211; Ultra Portable device that uses a battery and touch screen.<\/li>\n<li><strong>Smartphone<\/strong> &#8211; Small Ultra Portable device that uses a batter and small touch screen.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Comparison of input devices Digital Camera Resolution &#8211; Measured in mega pixels, typically the larger the better. Optical Zoom &#8211; How close you can make the image appear without losing any quality. Touch Screen Resistive &#8211; Single touch Capacitive &#8211; Multi touch output devices Printers Resolution &#8211; Measured in DPI (dots per inch) Speed &#8211; &hellip;<\/p>\n","protected":false},"author":32,"featured_media":1078,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[319,475,73752],"tags":[],"class_list":["post-1298","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oldhigher","category-revision","category-technical-implementation-hardware-requirements"],"jetpack_featured_media_url":"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2016\/03\/higher.png","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/1298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/comments?post=1298"}],"version-history":[{"count":1,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/1298\/revisions"}],"predecessor-version":[{"id":1299,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/1298\/revisions\/1299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media\/1078"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media?parent=1298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/categories?post=1298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/tags?post=1298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}