History




Towards the end of the 20th century, mobile phone ownership became ubiquitous in the industrialised world - due to the establishment of industry standards, and the rapid fall in cost of handset ownership, and use driven by economies of scale. As a result of this explosion, technological advancement by handset manufacturers became rapid. With these technological advances, mobile phone games also became increasingly sophisticated, taking advantage of exponential improvements in display, processing, storage, interfaces, network bandwidth and operating system functionality. The first such game that demonstrated the desire for handset games was a version of Snake that Nokia had included on its devices since 1997.

The launch of Apple's iPhone in 2007 and the App Store in 2008 radically changed the market. The iPhone's focus on larger memory, multitasks, and additional sensing devices, including the touchscreen in later model, made it ideal for casual games, while the App Store made it easy for developers to create and post apps to publish, and for users to search for and obtain new games. With several games released at launch of the App Store featured as rags to riches stories, developers drove to the iPhone and App Store. Further, the App Store added the ability to support in-app purchases in October 2009. This allowed games like Angry Birds and Cut the Rope to find new monetization models away from the traditional premium "pay once" model. Meanwhile, Apple's disruption caused the market to stabilized around iPhone devices and Google's Android-based phones which offered a similar app store through Google Play.

A further major shift game with 2012's Candy Crush Saga and Puzzle & Dragons, games that used a stamina-like gameplay feature found in social-network games like FarmVille to limit the number of times one could play it in a single period, but allowed optional in-app purchases to restore that stamina immediately and continue playing. This new monetization brought in millions of players to both games and million of dollars in revenue, establishing the freemium model that would be a common approach for many mobile game going forward. Mobile gaming grew rapidly over the next several years, buoyed by rapid expansion in China. By 2016, top mobile games were earning over US$100 million a year, and the total revenue for the mobile games sector had surpassed that of other video game areas.

Other major trends in mobile games have include the hyper-casual game such as Flappy Bird and Crossy Road and location-based games like Pokémon Go.

Calculator gamesedit

Calculator gaming is a form of gaming in which games are played on programmable calculators, especially graphing calculators.

An early example is the type-in program Darth Vader's Force Battle for the TI-59, published in BYTE in October 1980. The magazine also published a version of Hunt the Wumpus for the HP-41C. Few other games exist for the earliest of programmable calculators (including the Hewlett-Packard 9100A, one of the first scientific calculators), such as the long-popular Lunar Lander game often used as an early programming exercise. However, limited program address space and lack of easy program storage made calculator gaming a rarity even as programmables became cheap and relatively easy to obtain. It was not until the early 1990s when graphing calculators became more powerful and cheap enough to be common among high school students for use in mathematics. The new graphing calculators, with their ability to transfer files to one another and from a computer for backup, could double as game consoles.

Calculators such as HP-48 and TI-82 could be programmed in proprietary programming languages such as RPL programming language or TI-BASIC directly on the calculator; programs could also be written in assembly language or (less often) C on a desktop computer and transferred to the calculator. As calculators became more powerful and memory sizes increased, games increased in complexity.

By the 1990s, programmable calculators were able to run implementations by hobbyists of games such as Lemmings and Doom (Lemmings for HP-48 was released in 1993; Doom for HP-48 was created in 1995). Some games such as Dope Wars caused controversy when students played them in school.

The look and feel of these games on an HP-48 class calculator, due to the lack of dedicated audio and video circuitry providing hardware acceleration, can at most be compared to the one offered by 8-bit handheld consoles such as the early Game Boy or the Gameking (low resolution, monochrome or grayscale graphics), or to the built-in games of non-Java or BREW enabled cell phones.

Games continue to be programmed on graphing calculators with increasing complexity. A wave of games appeared after the release of the TI-83 Plus/TI-84 Plus series, among TI's first graphing calculators to natively support assembly. TI-BASIC programming also rose in popularity after the release of third-party libraries. Assembly remained the language of choice for these calculators, which run on a Zilog Z80 processor, although some assembly implements have been created to ease the difficulty of learning assembly language. For those running on a Motorola 68000 processor (like the TI-89), C programming (possible using TIGCC) has begun to displace assembly.

Because they are easy to program without outside tools, calculator games have survived despite the proliferation of mobile devices such as mobile phones and PDAs.

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