~ WINDOWS HISTORY ~

1981, MS-DOS stands for Microsoft Disk Operating System. It is a single-area, single-user operating system for personal computers.

1985, It became popular thanks to its window-based graphical interface that gives it its name. Its desktop features included MS-DOS file handling, calendar, notepad, calculator and clock.

1987, its major innovation was the incorporation of a control panel to concentrate access to documents and applications, and the possibility of maximizing or minimizing the size of the windows on the screen. 

1990, Major user interface changes were introduced, along with improved exploitation of the memory management capabilities of the processors. The Program Manager and File Manager made their first appearance in this version, along with the redesigned control panel and some games such as Solitaire, Hearts and Minesweeper.

1994, Windows 95 was more consumer oriented, it had a completely new user interface and revolutionary features, such as the Start button, the Task Bar, the Notification Area, etc. It was also the first to include Plug and Play technology, which allows you to connect a device to your computer and use it immediately, without a prior configuration process.

1998, For example, the possibility of minimizing a window with a simple click on the icon of the toolbar, the buttons of navigation towards "Forward" and "Back", etc. With Windows 98 the recognition of peripherals such as scanners, mice, keyboards and joysticks was improved.

2000, Unlike W95 and W98 it lacked real DOS mode support. It was the first operating system to include a very useful feature called "System Restore" which allowed users to restore the OS to an earlier stable version.

2001, Windows XP introduced new features such as the use of a new user-friendly interface, the ability to use multiple user accounts at the same time, the ability to group similar applications in the taskbar, just to name a few.

2007, The main features implemented in this OS, have to do mainly with the new graphical interface that allowed transparency in the windows (Aero), the Flip-3D application that was activated with the key combination Win + Tab, and showing with a 3D effect the windows that were open could be switched from one to another. In addition, it allowed to have a preview of the open windows (Aero Peek), just by hovering the mouse over the buttons on the taskbar.

2009, Windows 7 stands out for offering a redesigned interface, a new taskbar, significant improvements in OS performance and also includes the Windows Touch feature, which allows the system to be used with touch screens.

2012, Its main difference with respect to its predecessors is the fact of replacing the home button by a menu with a new user interface that was modified to make it more friendly and easy to use with touch screens. Where Apps, show icons of different sizes that occupy the screen, can be grouped, show notifications. The file explorer now leaves functions that were previously hidden just a mouse click away.

2015, is recognized as a hybrid between Windows 7 and 8, which includes a new start menu, a virtual assistant called Cortana, a browser that replaces Internet Explorer called Edge, and finally the implementation of universal applications that can be modified more easily by developers, to be used on Windows 10 platforms such as PCs, tablets and smartphones.