A handheld game console is a portable game console that has it's own built-in screen, game controls, speakers and replaceable and/or rechargeable batteries or battery pack.

The very first handheld, digital video game console was the Mattel Auto Race. This was released in 1977 and was the first of many Mattel Electronics games. Mattel Auto Race was a built in game, so on it's release, there were no other games available for hand held use. The Mattel Auto Race waas not very popular, but shortly after it's release the game, Mattel Football was released and this was highly successful.

In 1979 the Microvision was released by the Milton Bradley Company. It was the first ever hand held console to be released that had interchangable cartridges. This was very popular in the first year of it's release, but in 1981 was lead to it's demise aloong with the entirity of handheld gaming due to home consoles.

On April 21st 1989, handheld gaming was revived by Nintendo with the release of the Gameboy. The Gameboy had interchangable cartridges and was run on AA-batterys that could last up to 35 hours if they were of a high power and a good brand. The gaboy had a Dightial operation system and had a multiplayer option available if you purchased a link cable.The Gameboy The Game Boy also contains optional input and/or output connectors. On the left side of the system is an external power supply jack that allows users to use an external rechargeable battery pack or AC adapter instead of four AA batteries.The Game Boy requires 6 V DC of at least 150. A 3.5 mm stereo headphonejack is located on the bottom side of the console which allows users to listen to the audio with headphones or speakers. Some of the reasons why this
Nokia released snake on a mobile device which was a monochrome phones game. The graphics consisted of black squares, and it had 4 directions. It was programmed in 1997 by Taneli Armanto, a design engineer in Nokia and introduced on the Nokia 6110n 
Nintendo's Gameboys successor the Game Boy Colour and was released on October 21, 1998. The processor is twice as fast as a Game Boy's and has twice as much memory. It also had an infrared communications port for wireless linking. The resulting product was backward compatible, a first for a handheld console system, and leveraged the large library of games and great installed base of the predecessor system. The console was capable of displaying up to 56 different colors simultaneously on screen from its palette of 32,768, and could add basic four-color shading to games that had been developed for the original Game Boy. It could also give the sprites and backgrounds separate colors, for a total of more than four colors.
The Nintendo DS, is a dual screen handheld game console developed and released by Nintendo. It was released on November 21, 2004. The DS, short for dual screen introduced new features to handheld gaming: an LCD screen working in tandem with a touchscreen, a built-in microphone, and support for wireless connectivity.Both screens are encompassed within a clamshell design. The Nintendo DS also features the ability for multiple DS consoles to directly interact with each other over Wi-Fi within a short range without the need to connect to an existing wireless network. Alternatively, they can interact online using the Nintendo Wi-Fi Connection service.The PlayStation Portable is a handheld game console manufactured and marketed by Sony Corporation. DThe system was released in Japan on December 12, 2004
The PlayStation Portable is the only handheld video game console to use an optical disc format, Universal Media Disc (UMD), as its primary storage medium. Other distinguishing features of the console include its large viewing screen, robust multi-media capabilities, and connectivity with the PlayStation 2, PlayStation 3, other PSPs and the Internet.
The Nintendo 3DS is a portable game console produced by Nintendo. The device is able toproject 3D effects without the use of 3D glasses oThe Nintendo 3DS features backward compatibility with Nintendo DS series software, including Nintendo DSi software. The console succeeds the Nintendo DS series of handheld systems.The Nintendo 3DS has three cameras: a single camera on the front/inside of the system that cancapture standard 2D images and two rear facing cameras on the back of the system which can be used together to capture 3D images. These photos can be edited with various effects.The outer camera and inner camera have an ability to zoom. The cameras can shoot pictures up to 0.3 mp.The PlayStation Vita is a handheld game console manufactured and marketed by Sony ComputerEntertainment. It is the successor to the PlayStation Portable as part of the PlayStationbrand of gaming devices.The handheld includes two analog sticks, a 5-inch multi-touch touchscreen, and supports Bluetooth, Wi-Fi and 3G.













