that carried up to 500 television channels. The first MP3 player, the MPMan, is released in the late spring of 1998. It came with 32 MB of flash memory expandable to 64 MB. By the mid-2000s, the MP3 player would overtake the CD player in popularity. The first GSM network is launched in Finland in 1991. Digital single-lens reflex cameras and regular digital cameras become commercially available. They would replace film cameras by the mid-2000s. IBM introduces the wide Microdrive hard drive in 170 MB and 340 MB capacities. Apple Computer in 1998 introduces the iMac all-in-one computer, initiating a trend in computer design towards translucent plastics and multicolour case design, discontinuing many legacy technologies like serial ports, and beginning a resurgence in the company's fortunes that continues to this day. CD burner drives are introduced. The CD-ROM drive became standard for most personal computers during the decade. The DVD media format is developed and popularized along with a plethora of Flash memory card standards in 1994. Pagers are initially popular but ultimately are replaced by mobile phones by the early-2000s. Hand-held satellite phones are introduced towards the end of the decade. The 24-hour news cycle becomes popular alongside the outbreak of the Gulf War between late 1990 and early 1991, and is solidified with CNN's coverage of Desert Storm and Desert Shield. Though CNN had been running 24-hour newscasts since 1980, it was not until the Gulf War that the general public took notice, and others imitated CNN's non-stop news approach. Portable CD players, introduced during the late 1980s, became very popular and profoundly impacted the music industry and youth culture during the 1990s. Software Microsoft Windows operating systems become virtually ubiquitous on IBM PC compatibles. Microsoft introduces Windows 3.1, Windows 95, and Windows 98 to the market, which gain immediate popularity. Macintosh System 7 was released in 1991. For much of the decade, Apple would struggle to develop a next-generation graphical operating system, starting with Copland and culminating in its December 1996 buyout of NeXT and the 1999 release of Mac OS X Server 1.0. The development of web browsers such as Netscape Navigator and Internet Explorer makes surfing the World Wide Web easier and more user-friendly. The Java programming language is developed by Sun Microsystems (later acquired by Oracle in 2009–2010). In 1991, development of the free Linux kernel is started by 21-year-old Linus Torvalds in Finland.