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History of Operating Systems
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First Operating System Created MS-DOS
Microsoft creates the first operating system , a software that software that manages, or runs, the computer hardware and also serves to bridge the gap between the computer hardware and programs. It's the foundation on which programs can run. THey called it the MS-DOS -
Windows 1.0 Released
Now instead of typing MS‑DOS commands, you just move a mouse to point and click your way through screens.There are drop-down menus, scroll bars, icons, and dialog boxes that make programs easier to learn and use. You're able to switch among several programs without having to quit and restart each one. -
Windows 2.0
On December 9, 1987 Microsoft releases Windows 2.0 with desktop icons and expanded memory. With improved graphics support, you can now overlap windows, control the screen layout, and use keyboard shortcuts to speed up your work. -
Windows 3.0
Windows now has significantly better performance, advanced graphics with 16 colors, and improved icons. A new wave of 386 PCs helps drive the popularity of Windows 3.0. Manager, File Manager, and Print Manager arrive in Windows 3.0. -
Windows NT
Unlike Windows 3.1, Windows NT 3.1 is a 32-bit operating system, which makes it a strategic business platform that supports high-end engineering and scientific programs -
Windows 95
Windows 95 has built-in Internet support, dial-up networking, and new Plug and Play capabilities that make it easy to install hardware and software. The 32-bit operating system also offers enhanced multimedia capabilities, more powerful features for mobile computing, and integrated networking. -
Windows 98
With Windows 98, you can find information more easily on your PC as well as the Internet. Other improvements include the ability to open and close programs more quickly, and support for reading DVD discs and universal serial bus (USB) devices. -
Windows 2000
Among other improvements, Windows 2000 Professional simplifies hardware installation by adding support for a wide variety of new Plug and Play hardware, including advanced networking and wireless products, USB devices, IEEE 1394 devices, and infrared devices. -
WIndows ME
Designed for home computer use, Windows Me offers numerous music, video, and home networking enhancements and reliability improvements compared to previous versions. -
Mac OS X Public Beta
Apple released its Mac OS X Public Beta, a limited-time trial run of the ultra-modern, groundbreaking operating system that would replace the old Mac OS. Priced at $30 for a CD distributed via Apple’s online store, the beta gave the general public their first taste of the operating system -
Mac OS X 10.0 Cheetah
On March 24, 2001, Apple released OS X 10.0 (Cheetah). Available for $129, OS X marked the beginning of the end for the classic Mac OS, and the rise of a new OS based on a UNIX underpinning. In order to maintain compatibility with the large number of OS 9 applications in use, OS X was able to run a special 'Classic' compatibility mode that allowed OS 9 apps to run. -
Mac OS X 10.01 Puma
Released in September 2001, OS X 10.1 was a much improved version, with many bug fixes, plus features, such as the ability to play back a DVD, that the original version lacked. OS X 10.1 was a free upgrade for 10.0 users, and $129 for new users. -
Windows XP
For Microsoft, Windows XP will become one of its best-selling products in the coming years. It’s both fast and stable. Navigating the Start menu, taskbar, and Control Panel are more intuitive. -
Mac OS X 10.2 Jaguar
Jaguar marked the first version of OS X with hefty performance gains as well as many features we now take for granted, including the first version of iChat (now called Messages) and Address Book (now called Contacts). It also included support for what was then pretty impressive graphics, on ATI or NVIDIA AGP-based graphics cards. -
Mac OS X 10.3 Panther
Panther was released on October 24, 2003, and once again, the OS delivered remarkable performance increases. Some of its new features were also quite remarkable, including built-in video conferencing with iChat AV and the introduction of Safari for web browsing (earlier versions of OS X used Internet Explorer for the Mac). -
Mac OS X 10.4 Tiger
On April 29, 2005, Apple introduced Tiger. Among the new features introduced with Tiger were Spotlight, Smart Folders, QuickTime 7, and Automator, along with Core Image and Core Video (APIs that developers could use to create image- and video-rich applications). -
Windows Vista
. User Account Control helps prevent potentially harmful software from making changes to your computer. In Windows Vista Ultimate, BitLocker Drive Encryption provides better data protection for your computer, as laptop sales and security needs increase. Windows Vista also features enhancements to Windows Media Player. -
Mac OS X Leopard
Leopard introduced Time Machine, Boot Camp, for running Windows, and Spaces. However, it also bid goodbye to the Classic environment, leaving many older Mac OS applications unable to run under Leopard, and many sad gamers. -
Windows 7
Windows 7 includes new ways to work with windows—like Snap, Peek, and Shake—that improves functionality and makes the interface more fun to use. It also marks the debut of Windows Touch, which lets touchscreen users browse the web, flip through photos, and open files and folders. -
Mac OS X 10.6 Snow Leapord
Snow Leopard received a rewrite of the Finder using native Cocoa API instead of the much older Carbon API. The switch to Cocoa provided a more responsive Finder. Snow Leopard also received improvements through the use of multiple processors and cores, with a central service (Grand Central Dispatch) taking care of CPU utilization for developers. Snow Leopard also introduced the Mac App Store, an online store for purchasing Mac-based applications, much like the iTunes App Store for iOS devices. -
Mac OS X 10.7 Lion
Released on July 20, 2011, Lion marks the point where OS X and iOS started to converge. Apple used Lion to start bringing elements of iOS to the Mac, including Launchpad (a type of application launcher), disappearing scroll bars, natural scrolling, Resume, and Auto-Save. iCloud, which began life as a replacement for Mobile Me, also made its official appearance as part of the OS instead of a separate service. -
Mac OS X 10.8 Mounatin Lion
Mountain Lion changed application names to more closely resemble their iOS counterparts. Address Book became Contacts, iCal became Calendar, iChat became Messages, and Notes became a stand-alone app, instead of being part of Mail. -
Windows 8
Windows 8 is a reimagined operating system, from the chipset to the user experience, and introduces a totally new interface that works smoothly for both touch and mouse and keyboard. It functions as both a tablet for entertainment and a full-featured PC for getting things done. -
Mac OS X 10.9 Mavericks
Perhaps the biggest change to the OS, other than the new naming convention, was the focus on reducing power consumption and extending battery life on portable Macs. To help with this goal, Mavericks contains two new core features: Timer Coalescing, which reduces CPU usage by synchronizing tasks so the CPU doesn't need to wake for any single minor task; instead, it schedules them to occur together. The other new core feature is App Nap, which puts applications to sleep when they aren't active, or -
Mac OS X 10.10 Yosemite
New features of OS X Yosemite include Continuity, which allows you to continue working with an app or document across multiple Apple platforms by leveraging Wi-Fi and Bluetooth connectivity. You can even answer and make calls from your Mac, using your nearby iPhone. -
Windows 10
The operating system delivers an upgraded Windows interface, focusing on the iconic Start menu and building an intuitive experience from there. Windows 10 introduces a new Microsoft voice that's more conversational and approachable than before. Cortana—the first digital personal assistant from Microsoft—makes her first appearance on a PC with Windows 10.Learning from the behaviors and preferences of each person she interacts with,
