This article discusses cloud computing, five current operating systems, the differences between main memory and secondary storage, five key concepts of an operating system, and ways professionals can use handheld computers. It also includes a review of an article about Linux operating systems.
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Running head: OPERATING SYTEMS Operating systems Name of Student: Name of College: Authors Note: 1
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OPERATING SYTEMS 1.Give a real life example of a task that you complete everyday via cloud computing. How would you cope up if network connection suddenly became unavailable? Cloud computing is an archetype that allows universal access to shared source of information, network, servers and applications. It permits processing of data to be made on private owned cloud or third part provider which enhances speed and stability (Chen et al. 2017).So cloud computing has huge applicability in real life for everyday computing. For instance, Gmail that is provided by Google offers infinite storage over cloud which has reshaped the manner emails are sent and has increased my usability of sending emails. If network connection suddenly turns unavailable then mentioned steps can be followed: First checking the back of router and laptop/computer and ensuring all cables are tightly connected to right ports. In case cables are in place then next step is checking router settings. If these settings are as they should be then power cord should be removed from router and sometime should be allowed before plugging again. Sometimes hard reboot fixes network connection problems. 2.Namefivecurrentoperatingsystemsandidentifythecomputers, platforms and configurations where each is used The various operating systems that are available are: (van Steen & Tanenbaum 2016) Linux:it is an open source freely available OS. It can run on desktop, supercomputers, internet and server platforms as well as on embedded systems. LILO (Linux Loader) is used to configure Linux into memory and start OS. LILO can be configured to boot other OS also and LILO can be customized that means if default configuration is not right it can be changed. Config file for LILO is lilo.conf 2
OPERATING SYTEMS Microsoft windows:windows are an OS and the currently windows 10 are available for PC, tablets, smartphone and embedded devices. Windows server 2016 is currently available for server computers and a special version of window is used for Xbox one video game console. The current version is based on Window NT kernel; client version on IA-32, x86-64 and 32-bit AIRM microprocessor. Also Itanium supports old server version Windows server 2008 R2. Windows 10 need 64 bit processor. Google android:it is an OS that can be used on various devices like smartphone, tablets. After 2012, Android supported 64-bit x86 platforms and then on ARM64. After Android 5.0 Lollipop 64-bit version of all platforms are supported in addition to 32-bit version. Android can be run on AOSP Apple MacOS: it is an OS that runs on Apple desktop and laptops. UNIX is platform for MacOS and the Configuration used for macOS is property list. Apple iOS: it is a popular OS used for smartphone and runs on Apple iPhone, iPad and iPods. iOS runs on ARM platform with 64 bit ARMv8-A processors. iOS runs on iPhone configuration utility that generates XML files for configuration profile. 3.Many people confuse main memory and secondary storage. Explain why this might happen, and describe how you would explain the differences to classmates so they would no longer confuse the two. Many people get confused with main memory and secondary storage for which the reasons could be many but the main reason can be the fact that people do not interpret their distinct responsibilities. Main memory functions to store and retrieve data which support computer processing these data’s and also main memory is volatile. While secondary storage is non volatile. The main difference between main memory and secondary storage: (Chen, Lu, Xiao & Liu 2014) Main memorySecondary storage It is primary memoryIt is back up memory Volatile which means data is lost when powerNon volatile which means data is permanently 3
OPERATING SYTEMS is switched offstored even when power is switched off Working memory of PCStorage for data Computercannotoperatewithoutmain memory Computercanoperatewithoutsecondary storage 4.Name five key concepts of an operating system that you think a typical user needs to understand and know. The key concepts of operating system that users should know are: Memory manager which is accountable for controlling memory usage Process manager that is composed of sub-managers, job schedulers; process schedulers and makes decision for allocating CPU Device manager which is accountable for controlling device usage File manager which is accountable for controlling file usage User interface which is part of OS that users interact with directly 5.Select one of the two professionals. An insurance adjuster, a manager in a supermarket. Suggest at least two ways that such a person might use a handheld computer to work more efficiently. The manager of supermarket can use interactive systems in their handheld computers that would permit multiple job processing and delivering outcomes with better response. Also they can use batch system where one job is entered and processed at a time that can be applicable to create monthly sales report. While insurance adjuster can use real time systems in their handheld computers to work more efficiently within crucial environment such as insurance where credibility of information is vital. Also interactive system can be used which would allow numerous amount of interaction between user and computer. 4
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OPERATING SYTEMS References Chen, Z., Chen, K., Jiang, J., Zhang, L., Wu, S., Qi, Z., . . . Kang, Z. (2017). Evolution of cloud operating system: From technology to ecosystem.Journal of Computer Science and Technology, 32(2), 224-241. Retrieved from: doi:http://dx.doi.org/10.1007/s11390-017- 1717-z[Accessed on 1 Oct. 2018] Chen, Z., Lu, Y., Xiao, N., & Liu, F. (2014). A hybrid memory built by SSD and DRAM to support in-memory big data analytics.Knowledge and Information Systems, 41(2), 335- 354. Retrieved from doi:http://dx.doi.org/10.1007/s10115-013-0727-6[Accessed on 1 Oct. 2018] van Steen, M., & Tanenbaum, A. S. (2016). A brief introduction to distributed systems. Computing. Archives for Informatics and Numerical Computation, 98(10), 967-1009. Retrieved from: doi:http://dx.doi.org/10.1007/s00607-016-0508-7[Accessed on 1 Oct. 2018] 5
OPERATING SYTEMS 6.Write a one page review of an article about the subject of operating systems that appeared in a recent computing magazine or academic journal. Give a summary of the article, including the primary topic, your ownsummaryoftheinformationpresented,andtheauthors’ conclusion. Give your personal evaluation of the article, including topics that made the article interesting to you. Cite your work In the article published in Datamation which is computer magazine the primary topic is about Linux operating systems where the author highlighted success and failures of Linux in 2017. Some of the successes of Linux OS were Linux Dockr and Kubernetes. Docker is a devoted singleapplicationLXCcontainerthatpermitsuserstorunsingleprocessapplication environment. As such they became huge in demand because they are flexible platforms. Also Kubernetes is another container storage platform that was promoted under Google which also created buzz. Moreover Linux is the OS that runs world’s supercomputers which exclusively is dominated by Linux even more than those that are run on Microsoft Azure. Also 2017 was good for Linux VARS (Value added reseller) where customers favored purchasing Linux PC with Linux pre-installed due to the long term support for VAR (Hartley 2017) The author also showcased some failure for Linux such as marketing and online presence where largest reason of failure for Linux on desktop was inadequate market share. Also real cause was absence of brick and mortar presence on platforms like Amazon which extended offerings to larger markets. Though System 76 was available but it was limited which could have been improved through collaboration with Dell or some other providers. At present market of Linux VAR is also limited and continues to promote within existing customer base which has limited its presence. As I have interest in latest information on technology and computer systems I found this article hugely informative and interesting as it explained success and failures aspects of one of the most powerfulLinuxOSindetailedway.Theauthoralsosuggestedsomeofhispersonal recommendation to overcome the areas of failure for Linux so as to improve which was best part of this article. 6
OPERATING SYTEMS References Hartley. M (2017) Linux Successes (and Failures) in 2017. Datamation. Retrieved from: https://www.datamation.com/open-source/linux-successes-and-failures-in-2017.html [Accessed on 1 Oct. 2018] 7