Introduction to Operating Systems

Brief history of three contrastive direct(a) clays (OS). For the three OS I chose Windows, Linux and apple formations. Windows 1. 0 The very eldest version of Windows, Windows 1. 0, basic interface that used gad fails, akin the calendar and calculator, unless it gained little popularity. Released in 1985, the system had basic functionality, introduced the for the offset printing time version of MS Paint and a primitive word mainframe computer. Windows 2. 0 Released in 1987, was not much better than the first. spell 2. 0 introduced two trustworthy staples pass by and Word to users 2. went under fire when Macintosh sued Microsoft for mimicking the look and feel of their current operating system. The lawsuit was dropped. Windows 3. 0 The introduction of virtual memory, improved graphics, and the powerfulness to multitask seconded propel Windows to sell 10 million copies. In fact, while it was released in 1990, Windows 3. 0 wasnt discontinued until 2001. Windows 3. 1 A pse udo-release for Microsoft, Windows 3. 1 contained fixes and improved causa functionality. Microsoft continued to develop a radical release, Windows NT, hoping it could be released as a continuation of Windows 3. and 3. 1. Unfortunately, issues with driver support and softw be meant it was time for a new version altogether.Windows 95 The change from 16-bit to 32-bit, Windows 95 was designed for increased compatibility and supreme user-friendliness. Became clear that consumer instruction processing systems would become the future, Windows 95 was offered on newer computers only because it lacked some backwards compatibility at first. Newer releases and patches make the version easier to use on older machines, by 1995, Microsoft had achieved a widespread interest in home computers.Windows 4. The follow-up to Windows 3. 0, Windows 4. 0 released in 1996 with minor improvements and is not considered a major Windows release. Windows 98 As consumer computers became widespread, Window s 98 improved hardware and hardware drivers, meshing Explorer, and eventually Internet connection sharing. Released in 1998, with a new release in 1999, Microsoft 98 was the first release designed specifically for consumers, as opposed to the trade or technology set. Windows 2000 Windows 2000 made everyones lives easier change magnitude the number of plug and get devices compatible with the OS.Windows ME (Millennial Edition) was excessively released, offering the system recovery tool to help return a crashed computer to its last known operating settings. Windows XP The system designed for ease and stability, Windows XP was released in 2001, offering plenty of ease and functionality for laptop and desktop users. The OS was designed to offer users help by a comprehensive help center, gave users the ability to consume a number of antithetical types of media. Windows conniption Widely considered a flop in technology circles, Windows Vista was released in 2006.Vista had high sys tem requirements and suffered issues with performance and security. The OS also tended to drain laptop batteries. The version lasted only three years, during which some users downgraded back to XP avoiding the pitfalls of Vista. Windows 7 For this current release of Windows, Microsoft learned its mistakes with Vista and make believed an OS with speed, stability and minimal system requirements. Microsoft ditched the gadget bar from Vista, replacing with a cleanly feel. This version was released in 2009. Windows 8 This latest Windows release is getting a lot of attention.With redesigned Metro-style user interface and Windows Store, this version is, once again, redefining what Windows is. It also comes with integrate antivirus protection, a virtual hard disk and a new platform based on HTML5 and JavaScript. Windows 8 promises faster boot time, touchscreen compatibility and the ability to create a bootable USB flash drive. It whitethorn not be enough to get pack to switch from Wind ows 7, but at least its a coup doeil into the future of the Windows operating system. Linux is an OS for your computer.Like the Mac and Windows systems, it provides the basic computer services needed for someone to do things with a computer. It is the middle degree between the computer hardware and the software applications you run. Full applications have capabilities standardised boldface type and picture editing tools. None of this is available with the OS. Yet all of it is done by communicating with the machinery of the computer through the OS. You may highlight a word in word processor and tell it that you want that word in bold type, but the OS tells the computer which pixels (or part of the screen) to darken.Linux was developed by Linus Torvalds and a band of programmers who voluntarily developed the core program of the system (aka, the kernel). That program was originally compatible for an other operating system called Minix, but later development made it usable with wil debeest software. GNU is pronounced like the animal and stands for GNUs non Unix. It was a project conceived by Richard Stallman in 1983 in response to the increasing tendency of software companies to copyright their software under terms that prohibited sharing. GNUs purpose to develop a wholly free system.It had achieved significant work up toward this goal by the time that Linus and others had developed their kernel in the 1990s. While many people refer to the combination of the two as Linux, this is not correct. The kernel combined with GNUs free software is properly called GNU/Linux. some(prenominal) the kernel and the software are freely available under licensing that is sometimes called copyleft. Where traditional copyright was meant to restrict usage and ownership of a copyrighted item to as few people as realistic, inhibiting development and growth, GNU/Linux is different.It is released under terms designed to ensure that as many people as possible are allowed to rece ive, use, share, and modify the software. That license is called the GPL (GNU Public License). Ubuntu depends on the Linux kernel and includes many GNU applications. So, when someone speaks of the Ubuntu kernel for a computer, they are actually talking about a recent version of the Linux kernel. virtually of the applications that are available for Ubuntu are either part of the GNU army or are released under the GPL. For apple not much information was found.However, they provide a timeline of the OS. 1978 In June of 1978 apple introduces apple DOS 3. 1, the first operating system for the Apple computers. 1984 Apple introduces System 1. 1985 Apple introduces System 2. 1986 Apple introduces System 3. 1987 Apple introduces System 4. 1988 Apple introduces System 6. 1991 Apple introduces System 7 operating system May 13, 1991. 1995 Apple allows other computer companies to clone its computer by announcing it is licensed the Macintosh operating system rights to Radius on January 4. 199 7 Apple introduces Mac OS 8. 997 Apple buys NeXT Software Inc. for $400 million and acquires Steve Jobs, Apples cofounder, as a consultant.1999 Apple introduces Mac OS 9. 2001 Apple introduces Mac OS X 10. 0 code named Cheetah and becomes available March 24, 2001. 2001 Apple introduces Mac OS X 10. 1 code named Puma and becomes available on family 25, 2001. 2002 Apple introduces Mac OS X 10. 2 code named mountain lion and becomes available on August 23, 2002. 2003 Apple introduces Mac OS X 10. 3 code named Panther October 25, 2003. 2004 Apple introduces Mac OS X 10. code named Tiger at the WWDC on June 28, 2004. 2007 Apple introduces Mac OS X 10. 5 code named Leopard October 26, 2007. 2008 Apple introduces Mac OS X 10. 6 code named Snow Leopard and MobileMe at the WWDC on June 9, 2008. Factors that may take users to upgrade the OS they use is stability, performance and security. Windows Vista had many issues in these areas making users switch back to XP. For other OS not instead sure if any had serious issues, though the newer versions gave more reason to upgrade. My in-person use of OS has only been with Windows and Apple IOS on a stall phone.Never a caramel brown of Apple but Windows I like. It has been so long since I used XP that I am unsure of why I switched other than I had to because my new PC had a different version. Despite the problems with Vista I was like Sheldon when using 7 the first time, 7 is too user friendly. However, I love Windows 7 and do not intend on upgrading until I have no choice. For Apple use on a cell phone there may be a chance I do not like this IOS because it is only through a phone and they have not to date made phones run just like PCs.I do plan on buying an Apple computer soon so I can get more experience with the OS. Linux is an OS I am not even sure if I ever used, it is possible I did when computers first came out because my neighbor was a computer fan and was also the person that got me into technology. That was so long ago that I scarcely recall anything I did through her computers, all I remember is I had to tell the PC what to do like command prompts. If Linux OS is the same, than I do enjoy this system.