The Series 90 (S90, formerly ''Hildon'') is a platform for

mobile phone A mobile phone or cell phone is a portable telephone that allows users to make and receive calls over a radio frequency link while moving within a designated telephone service area, unlike fixed-location phones ( landline phones). This rad ...

s that use the

Symbian 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 OS ...

operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

(OS). It was developed by

Nokia Nokia Corporation is a Finnish multinational corporation, multinational telecommunications industry, telecommunications, technology company, information technology, and consumer electronics corporation, originally established as a pulp mill in 1 ...

together with Psion. It was released in 2003 and was to be the platform for the Nokia 7700 which was cancelled, but S90 made it to market eventually in the Nokia 7710. 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

graphical user interface A graphical user interface, or GUI, is a form of user interface that allows user (computing), users to human–computer interaction, interact with electronic devices through Graphics, graphical icon (computing), icons and visual indicators such ...

(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 cancell ...

user interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine fro ...

in the

Maemo Maemo is a Linux-based software platform originally developed by Nokia, now developed by the Free software movement, community, for smartphones and Internet tablets. The platform comprises both the Maemo operating system and Software development ...

shipped with

Nokia Internet Tablet Nokia Internet Tablets is the name given to a range of Nokia mobile Internet appliances products. These tablets fall in the range between a personal digital assistant (PDA) and an Ultra-Mobile PC (UMPC), and slightly below Intel's Mobile Internet ...

Compatibility

Series 90 is fully incompatible with

Series 60 The S60 Platform, originally named Series 60 User Interface, is a discontinued software platform and graphical user interface for smartphones that runs on top of the Symbian operating system. It was created by Nokia based on the 'Pearl' interfa ...

(S60) and UIQ, the most popular platforms for Symbian

smartphone A smartphone is a mobile phone with advanced computing capabilities. It typically has a touchscreen interface, allowing users to access a wide range of applications and services, such as web browsing, email, and social media, as well as multi ...

s. However, some applications from Nokia Series 80 Communicator devices, such as the

Nokia 9300 The Nokia 9300 is a Nokia Series 80 Symbian mobile phone 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 ...

, will function under Series 90.

History

Essentially, Series 90 is a development of the Psion Eikon GUI as used on the

Series 5 Series 5 may refer to: * Aston Martin V8 Series 5, an automobile model * BMW 5 Series, a line of automobiles * GeForce 5 Series, a line of video cards * Psion Series 5, a line of handheld computers * South African Class 6E1, Series 5, a series o ...

, Series 5mx, Revo, netPad, Series 7 and

netBook A netbook is a small-sized laptop computer; they were primarily sold from 2007 until around 2013, designed mostly as a means of accessing the Internet and being significantly less expensive than regular-sized laptops. At their inception in l ...

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