Windows 98 is a graphical operating system released by Microsoft on June 25, 1998 as the successor to Windows 95. An updated version, Windows 98 Second Edition (SE), was released on May 5, 1999 with improved USB and Internet Explorer support as well as features like Internet Connection Sharing. Windows 98 SE had system requirements including a 486 processor, 16MB RAM, 500MB hard drive space and CD-ROM drive. It included applications and system tools like Notepad, Calculator, Media Player, and ScanDisk for file system maintenance.