HISTORY OF OPERATIMG SYSTEMS Operating systems (OS) provide a set of functions needed and used by most application programs on a computer‚ and the linkages needed to control and synchronize computer hardware. On the first computers‚ with no operating system‚ every program needed the full hardware specification to run correctly and perform standard tasks‚ and its own drivers for peripheral devices like printers and punched paper card readers. The growing complexity of hardware and application programs
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Operating System Security Abstract Information systems are now becoming the social infrastructure so it is necessary to improve the security level because of privacy and data theft. One of the important issues which have to concern in the security of cyberspace is the security of operating system. This paper helps us to know about the security of most commercial Operating system like UNIX and Microsoft windows which are widely using in whole world. Introduction Computer system from
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EVOLUTION OF THE OPERATING SYSTEM Operating systems as they are known today trace their lineage to the first distinctions between hardware and software. The first digital computers of the 1940s had no concept of abstraction; their operators inputted machine code directly to the machines they were working on. As computers evolved in the 1950s and 1960s however‚ the distinction between hardware such as the CPU and memory (or Core as it was called then) and the software that was written on top of it
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ELM PYTHON Chapter 4 1. “reject the shell is like rejecting all gears except first in your car” – explain . (gear in the car is use to adjust its speed ‚ same as the shell in the operating system we cannot interact with the kernel and do something to the settings without it) 2. What is the use of options in the command?( Options determine how the command operates) 3. What is the use of arguments in the command?( arguments determine what it operates on) 4. Who develop “bourne shell”?( Stephen
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Operating System Security Security is the most important part of an operating system when it comes to keeping the system and its information safe. There are various aspects to the security piece in an operating system; which are protocols‚ kernel and encryption. The UNIX/LINIX‚ Apple and Windows Server 2008 all have protocol‚ kernel and encryption features. These features need to be enabled to the highest level in order to have the most security for each of these operating systems. Even
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Premium can support? 16 GB 3. How much free space on the hard drive is required to install a 64-bit version of Windows 7? 20 GB 4. How do you start the process to reinstall an OS on a laptop computer using the backup files stored on a recovery partition? To access the utilities on the hidden partition‚ press a key during startup. The key to press is displayed on the screen early in the boot before the OS is loaded. 5. What are three free applications mentioned in the chapter that can be used
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are: Multitasking capability Multi-user capability Portability UNIX programs Library of application software Security 1. Multitasking Capability Many computers do just one thing at a time‚ as anyone who uses a PC or laptop can attest. Try logging onto your company’s network while opening your browser while opening a word processing program. Chances are the processor will freeze for a few seconds while it sorts out the multiple instructions. UNIX‚ on the other hand‚ lets
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References: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Wikipedia Official website of Android Official website of Apple Official website of Windows phone http://www.studymode.com/essays/Mobile-Operating-Systems-FeatureComparison-905694.html http://en.wikipedia.org/wiki/Mobile_operating_system http://archive.techtree.com/techtree/jsp/article.jsp?article_id=114322&cat_id=899 http://jaxov.com/2010/04/iphone-os-4-vs-windows-phone-7-vs-android-2-1comparison/
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total desktop operating system market share (NetMarketShare‚ 2013). These operating systems run our home and work computers. Server versions of these operating systems run Internet web pages‚ corporate databases and file servers. Mobile versions of these operating systems run our personal smart phones and tablets. Soon‚ we may see a Linux-based ecosystem in vehicles. What is known as Automotive Grade Linux‚ a sub group of the Linux Foundation‚ “is providing a common operating system and application
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Internet Operating Systems Andrew S Minette POS/355 University of Phoenix Internet operating systems‚ or Web operating systems‚ are not operating systems per say. There are more of user interfaces. An operating system is dependent on system hardware and uses hard disk space on a user computer to install and store applications. Web operating systems‚ however‚ depend on traditional operating systems to run an instance. According to Jonathan Strickland or How Stuff Works‚ while there may not
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