GIMP or GNU Image manipulation program is an open source photo editor similar to Adobe Photoshop and Lightroom.
Its a free photo editing software, somewhat like Adobe Photoshop. You can do absolutely anything with the picture selected or even create your own art!
Following PARC the first GUI-centric computer operating model was the Xerox 8010 Information System (Xerox Star) in 1981, followed by the Apple Lisa (which presented the concept of a menu bar and window controls) in 1983, the Apple Macintosh 128K in 1984, and the Atari ST and Commodore Amiga in 1985.
it was renamed iOS on June 7, 2010, as, with the introduction of the iPad, and the existence of the iPod Touch, the iPhone was no longer the only device to run the mobile operating system. iOS 4 was the first major release to reflect this change. Apple licensed the "iOS" trademark from Cisco Systems.
Oldest version of iOS is 1.0 which was released on 29th June 2007 with build 1A543a and baseband of 03.11.02_G.