The Series 90 (formerly ''Hildon'') is a

platform Platform may refer to: Technology * Computing platform, a framework on which applications may be run * Platform game, a genre of video games * Car platform, a set of components shared by several vehicle models * Weapons platform, a system or ...

for

mobile phone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive calls over a radio frequency link whil ...

s that use

Symbian OS Symbian is a discontinued mobile operating system (OS) and computing platform designed for smartphones. It was originally developed as a proprietary software OS for personal digital assistants in 1998 by the Symbian Ltd. consortium. Symbian ...

. It was developed by

Nokia Nokia Corporation (natively Nokia Oyj, referred to as Nokia) is a Finnish multinational corporation, multinational telecommunications industry, telecommunications, technology company, information technology, and consumer electronics corporatio ...

in collaboration with Psion. It was released in 2003 and was going to be the platform for the Nokia 7700 which was cancelled, but did eventually make it to market with the

Nokia 7710 The Nokia 7710 is a smartphone developed by Nokia and announced on 2 November 2004. It was the first Nokia device with a touchscreen (4 years ahead of Nokia 5800 XpressMusic), and first Nokia branded device with 2:1 aspect ratio display (14 year ...

. Nokia discontinued Series 90 as a platform, but merged its technology into S60.All About Symbian -Series 60 and 90 merged
/ref>
/ref> Although only one production Series 90 device was made, a form of the GUI continued on as Nokia's

Hildon Hildon is an application framework originally developed for mobile devices (PDAs, mobile phones, etc.) running the Linux operating system as well as the Symbian operating system. The Symbian variant of Hildon was discontinued with the cancellati ...

user interface in the

Maemo Maemo is a software platform originally developed by Nokia, now developed by the community, for smartphones and Internet tablets. The platform comprises both the Maemo operating system and SDK. Maemo played a key role in Nokia's strategy to com ...

shipped with Nokia Internet Tablets.

Compatibility

Series 90 is completely incompatible with

Series 60 The S60 Platform (formerly Series 60 User Interface) was a software platform for smartphones that runs on top of the Symbian operating system. It was created by Nokia based on the 'Pearl' user interface from Symbian Ltd. It was introduced at ...

(S60) and

UIQ UIQ (formerly known as User Interface Quartz) was a software platform based upon Symbian OS, created by UIQ Technology AB. It is a graphical user interface layer that provides additional components to the core operating system, to enable the deve ...

, the most popular platforms for Symbian smartphones. However, some applications from Nokia Series 80 Communicator devices – such as the

Nokia 9300 The Nokia 9300 is a Nokia Series 80 Symbian Smartphone introduced in 2004. It is used as a normal though bulky mobile phone in closed mode, when it is flipped open it can be used like a very small notebook computer with a 640×200 screen. The p ...

– will function under Series 90.

History

Essentially, Series 90 is a development of the Psion

Eikon Eikon is a set of software products provided by Refinitiv for financial professionals to monitor and analyze financial information. It provides access to real time market data, news, fundamental data, analytics, trading and messaging tools. It p ...

GUI The GUI ( "UI" by itself is still usually pronounced . or ), graphical user interface, is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, inste ...

as used on the Series 5,

Series 5mx Series may refer to: People with the name * Caroline Series (born 1951), English mathematician, daughter of George Series * George Series (1920–1995), English physicist Arts, entertainment, and media Music * Series, the ordered sets used i ...

, Revo, netPad,

Series 7 Series 7 may refer to: *The seventh season of any of many shows or series; see and *Series 7 exam, officially the General Securities Representative Exam, the most comprehensive financial securities exam offered by the FINRA *'' Series 7: The Conte ...

and

netBook Netbook was a commonly used term that identified a product class of small and inexpensive laptops which were sold from 2007 to around 2013. These machines were designed primarily as cost-effective tools for consumers to access the Inte ...

machines. It has been modified to be controlled entirely through the touchscreen, supplemented by the 77x0's seven hardware buttons and rocker-dial. The Nokia 7700, which was never released, had only an on-screen keyboard for text input; the 7710 added basic handwriting recognition. Applications now have only a single menu tree, accessible from the title bar at the top of the screen; there is no Exit or Quit option in most apps; and a button bar has been added to the right hand side of the screen, resembling that of the Nokia Communicator smartphones.

References

{{Mobile operating systems Nokia platforms Smartphones