'Free software Essay\r'

'The freedom to run the electronic computer plan, for any(prenominal) purpose (freedom 0). The freedom to study how the program whole kit and caboodle, and change it so it does your computing as you wish (freedom 1). approach to the informant mandate is a stipulation for this. The freedom to re lot copies so you screwing help your neighbour (freedom 2). The freedom to distribute copies of your special versions to others (freedom 3). By doing this you fucking give the whole biotic community a chance to benefit from your changes. Access to the source code is a precondition for this You argon free to (1)study it, (2)redistribute it, and (3) modify it. 2. why is Linux popular?\r\nWhy is it popular in academia? Bell Labs offered it to educational institutions at nominal cost. The schools, in turn, make use ofd it in their computer perception programs, ensuring that computer science students became familiar with it. Because UNIX was such(prenominal) an advanced developing remains, the students became acclimated to a sophisticated programming environment. As these students graduated and went into industry, they expected to wee in a similarly advanced environment. As much of them worked their delegacy up the unravel in the commercial world, the UNIX operate organization found its way into industry\r\nThe source code for the operational system is right away available so that students arsehole get word to a greater extent easily how wildebeest/Linux works and arsehole modify the code and to beneathstand its operation and change the way it works. 3. What are multiuser systems? Why are they made? sharing the computer’s prop geniusnt among more users and giving them the ability to care entropy and programs are central features of the system. a multiuser operational system allows many an(prenominal) batch to use all of the system resources some simultaneously The use of costly resources can be maximized and the cost per user ca n be\r\nminimizedâ€the autochthonic objectives of a multiuser operate system. 4. What is the Free packet knowledgeableness/gnu? What is Linux? Which collapses of the Linux operating system did each provide? Who else has helped build and subdue this operating system? The Free Software Foundation (www. fsf. org) is the principal organizational frequent of the GNU Project. GNU developed many of the tools, including the C compiler, that are part of the GNU/Linux Operating System Linux is the name of an operating system kernel developed by Linus Torvalds and expanded and improved by thousands of bulk on the net.\r\nTorvalds’s kernel and GNU’s tools work together as the GNU/Linux Operating System 5. In which language is Linux indite? What does the language experience to do with the success of Linux? 95% is written in C. Because Linux is portable, it can be competent (ported) to different machines and can meet special(a) requirements. For drill, Linux is used in embedded computers, such as the unitarys found in cellphones, PDAs, and the parentage boxes on top of many 10 Chapter 1 Welcome to Linux and Mac OS X TVs. The file social system creates proficient advantage of large, fast hard disks.\r\n equally important, Linux was originally designed as a multiuser operating systemâ€it was not modified to serve several users as an afterthought. Sharing the computer’s power among many users and giving them the ability to share data and programs are central features of the system 6. What is a utility program? otften reffered to as â€Å" dominations” These utilities coiffe functions that are universally undeniable by users. The sort utility, for example, puts lists (or groups of lists) in alphabetical or numerical order and can be used to sort lists by part number, last name, city, ZIP code, telephone number, age, size, cost, and so forth.\r\nA utility (program), sometimes referred to as a command, is a program that perfo rms a task that is frequently related to the operating system. A utility is simpler than an application program although there is no clear phone production line separating the two 7. What is a ticktack? How does it work with the kernel? With the user? In a textual environment, the shellâ€the command illustrationâ€acts as an interface between you and the operating system. its the link between user and kernal to assure it what to do. or view what the kernal is doing. its the command line interface that accepts input from the user.\r\n8. How can you use utility programs and a shell to acquire your own applications? Write a shell script, also called a shell program, or a batch file under DOS. A shell script is one or more command lines contained in a file. Make the file workable and give the name of the file as a command: The shell executes the commands in the file, as though you had typed each command individually 9. Why is the Linux filesystem referred to as graded? The L inux filesystem provides a structure whereby files are put under directories, which are like folders or boxes.\r\nEach directory has a name and can hold other files and directories. Directories, in turn, are arranged under other directories, and so forth, in a treelike organization. This structure helps users keep track of large poem of files by grouping related files in directories. Each user has one primary directory and as many subdirectories as required 10. What is the difference between a multi central processor and a parallel processing system? multi processor is a computer that has more than one processor (processing units) and\r\nmultiprocessing system is the fact that it can process multiple tasks at the uniform time Multiprocessing is the use of more than one CPU in a computer system 11. Give an example of when you would want to use a multiprocessing system. Multiprocessing is the use of more than one CPU in a computer system so when you have more than one CPU you can t ake advantage of it. Multiprocessing sometimes refers to the slaying of multiple concurrent software processes in a system as unconnected to a single process at any one instant 12. nearly how many sight wrote Linux?\r\nWhy is this objectify unique? The Linux kernel was developed by Finnish undergraduate student Linus Torvalds The Linux operating system, which was developed through the cooperation of many, many people around the world, is a product of the Internet and is a free 13. What are the find out terms of the GNU General popular License? The GPL says you have the right to copy, modify, and redistribute the code covered by the parallelism When you redistribute the code, however, you must also distribute the same license with the code, thereby reservation the code and the license inseparable.\r\n'