{"id":521,"date":"2014-10-30T15:45:58","date_gmt":"2014-10-30T15:45:58","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/?p=521"},"modified":"2014-10-30T15:45:58","modified_gmt":"2014-10-30T15:45:58","slug":"homework-for-3rd-nov-2014","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2014\/10\/30\/homework-for-3rd-nov-2014\/","title":{"rendered":"Homework for 3rd Nov 2014"},"content":{"rendered":"
    \n
  1. What is the number system used by computers? (1)<\/li>\n
  2. State two advantages of using binary numbers rather than decimal numbers in a computer system. (2)<\/li>\n
  3. The reserve price of a vase is \u00a342\u00b750. State how a real number such as 42\u00b750 would be represented in the computer. (1)<\/li>\n
  4. A program calculates the average rainfall for one week as 18.6mm. Describe how floating point representation is used to represent real numbers. (2)<\/li>\n
  5. Convert the decimal number 13 into a binary number. (1)<\/li>\n
  6. Convert the following binary numbers in to decimal (2)\n
      \n
    1. 00001011<\/li>\n
    2. 10011111<\/li>\n<\/ol>\n<\/li>\n
    3. Convert the following decimal numbers into binary \u00a0(2)\n
        \n
      1. 63<\/li>\n
      2. 193<\/li>\n<\/ol>\n<\/li>\n
      3. Convert the binary number 11011 into a decimal number. (1)<\/li>\n
      4. State one reason why computer systems use binary numbers rather than decimal numbers. (1)<\/li>\n
      5. Convert the decimal number 27 into an 8 bit binary number. (2)<\/li>\n<\/ol>\n

        Total 15<\/p>\n","protected":false},"excerpt":{"rendered":"

        What is the number system used by computers? (1) State two advantages of using binary numbers rather than decimal numbers in a computer system. (2) The reserve price of a vase is \u00a342\u00b750. State how a real number such as 42\u00b750 would be represented in the computer. (1) A program calculates the average rainfall for …<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17938,17933,17013],"tags":[],"class_list":["post-521","post","type-post","status-publish","format-standard","hentry","category-computerstructure","category-data-types-and-structures","category-national-5"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/521","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=521"}],"version-history":[{"count":1,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/521\/revisions"}],"predecessor-version":[{"id":522,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/521\/revisions\/522"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media?parent=521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/categories?post=521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/tags?post=521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}