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Operating Systems for Business

  1. Give an example from real life of busy waiting, then describe a solution (similar to WAIT and SIGNAL) that can be put into place to remove the busy waiting.
  2. Describe four examples of secondary storage media other than hard disks. What usage scenarios would be ideal for each?

Sample Solution

any years ago, a theorist came up with The Infinite Monkey Theorem. ‘The legend goes that if you sit a monkey down at a typewriter for an infinite length of time, then eventually by hitting the keys at random, the monkey will type out the complete works of Shakespeare.’ (Saxton, 2010. P27). Animals like monkeys don’t have language, however, this theory suggests that they could possibly learn the language, if given enough time. The primary assumption is therefore, that humans and monkeys are not that much different when it comes to communication and language. From the following assumptions, it highly suggests that more intelligent animals could possibly acquire language. (Saxton, 2010). Several species of birds, parrots for instance, have amazing abilities to impersonate the human voice, but does it mean that the birds can actually ‘talk’ and hold a conversation? Many and possibly all animals can, and do communicate, in the sense that they deliberately send information to each other. Dogs bark and cats meow, but they don’t have a language (Saxton, 2010). The human language has several features that separate it from the animal communications. Charles Hockett, who is an American linguist, worked on this for several years and he came up with 16 defining characteristics of language. Most of these characteristics and features are shared to some extent with animal communication systems (Saxton, 2010). All languages have rules, which are understood and used by both the speaker and the listener. These rules are often referred to as grammar. By following the rules of grammar, speakers as well as

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