en EKA1

EKA1
Developer	Psion; Symbian Ltd.
Written in	Assembly language, C
OS family	EPOC (Symbian)
Working state	Discontinued
Source model	Proprietary
Initial release	1989; 36 years ago
Marketing target	PDAs, mobile phones
Available in	English
Platforms	x86, ARM
Kernel type	Microkernel
Succeeded by	EKA2
Official website	developer.symbian.org/wiki/index.php/Category:Kernel_&_Hardware_Services

EKA1 (EPOC Kernel Architecture 1) is the first-generation kernel for the operating system Symbian OS.^[1] EKA1 originated in the earlier 32-bit operating system EPOC.^[2] It offers preemptive computer multitasking and memory protection, but no real-time computing guarantees, and a single-threaded device driver model.^[2]^[3] EKA1 was replaced by EKA2 as the default kernel starting with Symbian v9.^[3]

Much of EKA1 was developed by a single software engineer, Colly Myers, when he was working for Psion Software in the early 1990s. Myers went on to act as CEO for Symbian Ltd.,^[3]^[4] when it was formed to license this kernel and associated operating system to mobile phone makers.^[5]^[6]

References

^ Orlowski, Andrew (9 November 2010). "Why Symbian failed: developers, developers, developers". The Register. Retrieved 15 January 2025.
^ ^a ^b Sales, Jane (December 2005). Symbian OS Internals: Real-time Kernel Programming. Wiley. pp. 2, 13. ISBN 978-0-470-02525-3.
^ ^a ^b ^c Morris, Ben (2007). The Symbian OS Architecture Sourcebook: Design and Evolution of a Mobile Phone OS (PDF). John Wiley & Sons. pp. 18, 22, 25, 259, 284, 291. ISBN 978-0-470-01846-0. Retrieved 15 January 2025.
^ "Business: The Company File Mobile giants team up against Microsoft". BBC News. 24 June 1998. Retrieved 15 January 2025.
^ Orlowski, Andrew (29 November 2010). "Symbian's Secret History: The battle for the company's soul". The Register. Retrieved 15 January 2025.
^ Chan, Karen (19 February 2001). "Siemens License Deal Gives Symbian World's Top Five Handset Makers". Wall Street Journal. Archived from the original on 2 October 2024. Retrieved 15 January 2025.

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[1] Orlowski, Andrew (9 November 2010). "Why Symbian failed: developers, developers, developers". The Register. Retrieved 15 January 2025.

[:0-2] Sales, Jane (December 2005). Symbian OS Internals: Real-time Kernel Programming. Wiley. pp. 2, 13. ISBN 978-0-470-02525-3.

[:1-3] Morris, Ben (2007). The Symbian OS Architecture Sourcebook: Design and Evolution of a Mobile Phone OS (PDF). John Wiley & Sons. pp. 18, 22, 25, 259, 284, 291. ISBN 978-0-470-01846-0. Retrieved 15 January 2025.

[4] "Business: The Company File Mobile giants team up against Microsoft". BBC News. 24 June 1998. Retrieved 15 January 2025.

[5] Orlowski, Andrew (29 November 2010). "Symbian's Secret History: The battle for the company's soul". The Register. Retrieved 15 January 2025.

[6] Chan, Karen (19 February 2001). "Siemens License Deal Gives Symbian World's Top Five Handset Makers". Wall Street Journal. Archived from the original on 2 October 2024. Retrieved 15 January 2025.

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EKA1

See also

References

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