{"id":51222,"date":"2024-04-15T23:21:44","date_gmt":"2024-04-15T23:21:44","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=51222"},"modified":"2024-04-15T23:21:44","modified_gmt":"2024-04-15T23:21:44","slug":"the-advantage-of-i-o-mapped-devices-to-memory-mapped-is","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/the-advantage-of-i-o-mapped-devices-to-memory-mapped-is\/","title":{"rendered":"The advantage of I\/O mapped devices to memory mapped is . . . . . . . ."},"content":{"rendered":"<p>[amp_mcq option1=&#8221;the former offers faster transfer of data&#8221; option2=&#8221;the devices connected using i\/o mapping have a bigger buffer space&#8221; option3=&#8221;the devices have to deal with fewer address lines&#8221; option4=&#8221;no advantage as such&#8221; correct=&#8221;option1&#8243;]<!--more--><\/p>\n<p>The correct answer is: <strong>A. the former offers faster transfer of data<\/strong><\/p>\n<p>I\/O mapped devices are accessed through special I\/O ports, while memory mapped devices are accessed through the same memory addresses as regular data. This means that I\/O mapped devices have to go through an extra level of indirection, which can slow down data transfers.<\/p>\n<p>In addition, I\/O mapped devices are often limited to a smaller range of memory addresses than memory mapped devices. This can also limit the amount of data that can be transferred at once.<\/p>\n<p>Finally, I\/O mapped devices can be more difficult to program than memory mapped devices. This is because I\/O mapped devices often require special drivers and software to be installed and configured.<\/p>\n<p>Overall, memory mapped devices offer a number of advantages over I\/O mapped devices. They are faster, they have a larger range of memory addresses, and they are easier to program.<\/p>\n<p>Here is a brief explanation of each option:<\/p>\n<ul>\n<li><strong>A. the former offers faster transfer of data<\/strong><\/li>\n<\/ul>\n<p>This is the correct answer. As explained above, I\/O mapped devices have to go through an extra level of indirection, which can slow down data transfers. Memory mapped devices, on the other hand, can access data directly from memory, which is much faster.<\/p>\n<ul>\n<li><strong>B. the devices connected using i\/o mapping have a bigger buffer space<\/strong><\/li>\n<\/ul>\n<p>This is not necessarily true. The amount of buffer space available for a device depends on the device itself, not on whether it is I\/O mapped or memory mapped.<\/p>\n<ul>\n<li><strong>C. the devices have to deal with fewer address lines<\/strong><\/li>\n<\/ul>\n<p>This is also not necessarily true. The number of address lines required for a device depends on the device itself, not on whether it is I\/O mapped or memory mapped.<\/p>\n<ul>\n<li><strong>D. no advantage as such<\/strong><\/li>\n<\/ul>\n<p>This is not true. As explained above, memory mapped devices offer a number of advantages over I\/O mapped devices.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>[amp_mcq option1=&#8221;the former offers faster transfer of data&#8221; option2=&#8221;the devices connected using i\/o mapping have a bigger buffer space&#8221; option3=&#8221;the devices have to deal with fewer address lines&#8221; option4=&#8221;no advantage as such&#8221; correct=&#8221;option1&#8243;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[728],"tags":[],"class_list":["post-51222","post","type-post","status-publish","format-standard","hentry","category-cloud-computing","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>The advantage of I\/O mapped devices to memory mapped is . . . . . . . .<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/the-advantage-of-i-o-mapped-devices-to-memory-mapped-is\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"The advantage of I\/O mapped devices to memory mapped is . . . . . . . .\" \/>\n<meta property=\"og:description\" content=\"[amp_mcq option1=&#8221;the former offers faster transfer of data&#8221; 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