Week One Exercise

Week One Exercise - WeekOneExercise1 Week One Exercise...

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Week One Exercise   1 Week One Exercise Jerald Brooks INF 103: COMPUTER LITERACY Professor Catherine White 11/02/2008
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Week One Exercise   2 What is an operating system? An operating system is a program designed to run other programs on a computer. A computer’s operating system is its most important program. It is considered the backbone of a computer, managing both software and hardware resources. Operating systems are responsible for everything from the control and allocation of memory to recognizing input from external devices and transmitting output to computer displays. They also manage files on computer hard drives and control peripherals, like printers and scanners. The operating system of a large computer system has even more work to do. Such operating systems monitor different programs and users, making sure everything runs smoothly, without interference, despite the fact that numerous devices and programs are used simultaneously. An operating system also has a vital role to play in security. Its job includes preventing unauthorized users from accessing the computer systems. There are multiuser, multiprocessing, multitasking, multithreading, and real-time operating systems. A multiuser operating system enables multiple users to run programs simultaneously. This type of operating system may be used for just a few people or hundreds of them. In fact, there are some operating systems that are used to allow thousands of people to run programs at the same time. Explain the parts of a URL. The protocol is http. Other protocols include https, ftp, etc. This is the Uniform Resource Locator (URL) of the web page you are looking at right now. A URL can be thought of as the "address" of a web page and is sometimes referred to informally as a "web address."
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Week One Exercise   3 URLs are used to write links linking one page to another; for an example, see the HTML entry. A URL is made up of several parts. The first part is the protocol, which tells the web browser what sort of server it will be talking to in order to fetch the URL. In this example, the protocol is http. The remaining parts vary depending on the protocol, but the vast majority of URLs you will encounter use the http protocol; exceptions include file URLs, which link to local files on your own hard drive, ftp URLs, which work just like http URLs but link to things on FTP servers rather than web servers, and mailto URLs, which can be used to invite a user to write an email message to a particular email address. The second part of the example URL above is the fully qualified domain name of the website to connect to. In this case, the fully qualified domain name is (www.boutell.com). This name identifies the web site containing the page. The term "fully qualified domain name" refers to a complete website or other computer's name on the Internet. The term "domain name" usually refers only to the last part of the name, in this case boutell.com, which has been registered for
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This note was uploaded on 08/01/2011 for the course ENG 122 taught by Professor Banks during the Spring '10 term at Ashford University.

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Week One Exercise - WeekOneExercise1 Week One Exercise...

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