System 7 also included AppleTalk networking and file sharing software in the form of system extensions and control panels. PowerPC Macintoshes included Graphing Calculator. System 7 was developed for Macs that used the Motorola 680x0 line of processors, but was ported to the PowerPC after Apple adopted the new processor. Engst's Internet Starter Kit for Macintosh. With the release of version 7.6 in 1997, Apple officially renamed the operating system 'Mac OS', a name which had first appeared on System 7.5.1's boot screen. Click on any of the games below to play directly in your browser. Since System 7 was introduced before the Internet came to popular attention, software such as MacTCP, FreePPP and Netscape were not included at first, but was later available on disk from Internet service providers and bundled with books such as Adam C. 247 Games offers a full lineup of seasonal Word Search games. Later, the Macintosh Performa series added various software bundles including third-party software such as ClarisWorks, The New Grolier Multimedia Encyclopedia, Microsoft Bookshelf, Spectre VR and Power Pete. Newly purchased Macintosh computers had System 7 installed and were often bundled with software such as HyperCard, At Ease and Mouse Practice. Unlike earlier systems, System 7 itself did not come bundled with major software packages. System 7 was the first Apple operating system to be available on CD, although it shipped on a set of 15 floppy disks initially.