generally include support for floppy disk drives, keyboards and other computer peripherals. Some models can also be connected to an emulator and have software testing and debugging features. The CD-I player 700 series, which consists of the 740 model, the most advanced player and featuring an RS-232 port. It was only released in limited quantities. There also exist a number of hard-to-categorize models, such as the FW380i, an integrated mini-stereo and CD-i player; the 21TCDi30, a television with a built-in CD-i device; the CD-i/PC 2.0, a CD-i module with an ISA interface for IBM-compatible 486 PCs. Other manufacturers In addition to Philips, several manufacturers produced CD-i players some of which were still on sale years after Philips itself abandoned the format. Manufacturers included: Magnavox (a Philips subsidiary) made rebranded players for the American market. GoldStar / LG Electronics, the LG GDI-700 (c. 1997) was a professional player with a Motorola 68341 processor, faster than the Philips model. GoldStar had a portable player, including another small one without an LCD screen. Digital Video Systems Memorex Grundig Kyocera made the portable Pro 1000S model Maspro Denkoh released a GPS car navigation system with a built-in CD-i player, released in Japan in 1992. Saab Electric Sony produced two models branded Intelligent Discman, a hybrid home/portable CD-i player released in 1990-1991 for professional use only. NBS International Interactive Media (I2m) released in 1995 a CD-i PCI expansion card for 486 PCs, Pentium PCs, 68k-based Macintosh and PowerPC-based Macintosh computers Vobis Highscreen Manna Space branded CD-i models (based on Magnavox's or GoldStar's version of Philips CDI 450) were made for a Japanese travel agency with the same name in 1995. Bang & Olufsen, who produced a high-end television with a built-in CD-i device (Beocenter AV5) on the market from 1997-2001. Before the actual commercial debut of the CD-i format, some other companies had interest in building players and some made prototypes, but were never released – this includes Panasonic (who were originally a major backer of the format), Pioneer, JVC, Toshiba, Epson, Ricoh, Fujitsu, Samsung and Yamaha. In addition, Sanyo showed a prototype portable CD-i player in 1992. Hardware specifications TeleCD-i and CD-MATICS Recognizing the growing need among marketers for networked multimedia, Philips partnered in 1992 with Amsterdam-based CDMATICS to develop TeleCD-i (also TeleCD). In this concept, the CD-i player is connected to a network such as PSTN or Internet, enabling data-communication and rich media