<meta name='google-adsense-platform-account' content='ca-host-pub-1556223355139109'/> <meta name='google-adsense-platform-domain' content='blogspot.com'/> <!-- --><style type="text/css">@import url(https://www.blogger.com/static/v1/v-css/navbar/3334278262-classic.css); div.b-mobile {display:none;} </style> </head><body><script type="text/javascript"> function setAttributeOnload(object, attribute, val) { if(window.addEventListener) { window.addEventListener('load', function(){ object[attribute] = val; }, false); } else { window.attachEvent('onload', function(){ object[attribute] = val; }); } } </script> <div id="navbar-iframe-container"></div> <script type="text/javascript" src="https://apis.google.com/js/platform.js"></script> <script type="text/javascript"> gapi.load("gapi.iframes:gapi.iframes.style.bubble", function() { if (gapi.iframes && gapi.iframes.getContext) { gapi.iframes.getContext().openChild({ url: 'https://www.blogger.com/navbar.g?targetBlogID\x3d1299762155230640671\x26blogName\x3dINTRO+TO+IT\x26publishMode\x3dPUBLISH_MODE_BLOGSPOT\x26navbarType\x3dBLACK\x26layoutType\x3dCLASSIC\x26searchRoot\x3dhttps://natashaaidaabdullah.blogspot.com/search\x26blogLocale\x3den\x26v\x3d2\x26homepageUrl\x3dhttp://natashaaidaabdullah.blogspot.com/\x26vt\x3d4068319468987752356', where: document.getElementById("navbar-iframe-container"), id: "navbar-iframe" }); } }); </script>




Rantings Profile Widgets Chatbox Links Archives
Monday, October 12, 2009
Disk Caching

A cache is a temporary storage area where frequently accessed data can be stored for rapid access. A disk cache is a mechanism for improving the time it takes to read from or write to a hard disk. Today, the disk cache is usually included as part of the hard disk. A disk cache can also be a specified portion of random access memory (RAM).
Redundant arrays of inexpensive disks (RAID)


A technology that allow computer users to achieve high levels of storage reliability from low-cost and less reliable PC-class disk-drive components, via the technique of arranging the devices into arrays for redundancy.
File compression and decompression
Data compression or source coding is the process of encoding information using fewer bits than an unencoded representation would use, through use of specific encoding schemes.