Editing Sega Dreamcast

Sega constructed numerous Dreamcast models, most of which were exclusive to Japan.  A refurbished Dreamcast known as the R7 was originally used as a network console in Japanese pachinko parlors.  Another model, the Divers 2000 CX-1, possesses a shape similar to Sonic's head and includes a television and software for teleconferencing.  A ''[[Hello Kitty]]'' version, limited to 2000 units produced, was targeted at Japanese female gamers. Special editions were created for ''Seaman'' and ''[[Resident Evil Code: Veronica]]''. Color variations were sold through a service called "Dreamcast Direct" in Japan. [[Toyota]] also offered special edition Dreamcast units at 160 of its dealers in Japan. In North America, a limited edition black Dreamcast was released with a Sega Sports logo on the lid, which included matching Sega Sports-branded black controllers and two games.

The Dreamcast controller includes both an analog stick and a digital pad, four action buttons, and two analog triggers. The system has four ports for controller inputs, although it was bundled with only one controller. The design of the Dreamcast's controller, described by the staff of ''[[Edge (magazine)|Edge]]'' as "an ugly evolution of [[Nights into Dreams...#Release|Saturn's 3D controller]]," was called "[not] that great" by 1UP.com's Sam Kennedy and "lame" by ''Game Informer''<nowiki>'</nowiki>s Andy McNamara. The staff of [[IGN]] wrote that "unlike most controllers, Sega's pad forces the user's hands into an uncomfortable parallel position." In contrast to the Sega CD and Sega Saturn, which included internal backup memory, the Dreamcast uses a 128 kbyte [[memory card]] called the [[VMU]] (or "Visual Memory Unit") for data storage. The VMU features a small [[Liquid crystal display|LCD]] screen, audio output from a one-channel [[Pulse-width modulation|PWM]] sound source, [[non-volatile memory]], a directional pad, and four buttons. The VMU can present game information, be used as a minimal handheld gaming device, and connect to certain Sega arcade machines. For example, players use the VMU to call plays in ''NFL 2K'' or raise virtual pets in ''Sonic Adventure''. Sega officials noted that the VMU could be used "as a private viewing area, the absence of which has prevented effective implementation of many types of games in the past." After a VMU slot was incorporated into the controller's design, Sega's engineers found many additional uses for it, so a second slot was added. This slot was generally used for vibration packs providing [[Haptic technology|force feedback]] like Sega's "Jump Pack" and Performance's "Tremor Pack", although it could also be used for other peripherals including a microphone enabling voice control and player communication. Various third-party cards provide storage, and some contain the LCD screen addition. [[LenovoEMC|Iomega]] announced a Dreamcast-compatible [[zip drive]] that could store up to 100 MB of data on removable discs, but it was never released.

Various third-party controllers from companies like [[Mad Catz]] include additional buttons and other extra features; third-parties also manufactured arcade-style joysticks for fighting games, such as Agetech's Arcade Stick and Interact's Alloy Arcade Stick. Mad Catz and Agetec created racing wheels for racing games. Sega decided against releasing its official light gun in the U.S., but some third party light guns were available. The Dreamcast supports a Sega fishing "reel and rod" [[motion controller]] and a keyboard for text entry. Although it was designed for fishing games such as ''[[Sega Bass Fishing]]'', ''Soul Calibur'' was playable with the fishing controller, which translated vertical and horizontal movements into on-screen swordplay in a manner that was retroactively cited as a predecessor to the [[Wii Remote]]. The Japanese Dreamcast port of Sega's ''[[Cyber Troopers Virtual-On Oratorio Tangram]]'' supported a "Twin Sticks" peripheral, but the game's American publisher, [[Activision]], opted not to release it in the U.S. The Dreamcast could connect to [[SNK Playmore|SNK]]'s [[Neo Geo Pocket Color]], predating Nintendo's [[Nintendo GameCube–Game Boy Advance link cable|GameCube–Game Boy Advance link cable]]. Sega also produced the [[Dreameye]], a digital camera that could be connected to the Dreamcast and used to exchange pictures and participate in [[Videotelephony|video chat]] over the system's Internet connection. Sega hoped developers would use the Dreameye for future software, as some later did with Sony's similar [[EyeToy]] peripheral. In addition, Sega investigated systems that would have allowed users to make telephone calls with the Dreamcast, and discussed with [[Motorola]] the development of an Internet-enabled cell phone that would have used technology from the console to enable quick downloads of games and other data.

The console can supply video through several different accessories.  The console came with [[RCA connector|A/V cables]], considered at the time to be the standard for video and audio connectivity.  Sega and various third parties also manufactured [[RF modulator]] connectors and [[S-Video]] cables. A [[Dreamcast VGA|VGA adapter]] allows Dreamcast games to be played on [[visual display unit|computer displays]] or [[Enhanced-definition television]] sets in [[480p]].