Software bus

Short description: Software architecture model

A software bus is a software architecture model where a shared communication channel facilitates connections and communication between software modules. This makes software buses conceptually similar to the bus term used in computer hardware for interconnecting pathways.[1]

In the early microcomputer era of the 1970s, Digital Research's operating system CP/M was often described as a software bus.[2][3] Lifeboat Associates, an early distributor of CP/M and later of MS-DOS software, had a whole product line named Software Bus.[4] D-Bus is used in many modern desktop environments to allow multiple processes to communicate with one another.

## Contents

* 1 Examples
* 2 See also
* 3 References
* 4 External links

## Examples

* Lifeboat Associates Software Bus-80 aka SB-80, a version of CP/M-80 for 8080/Z80 8-bit computers
* Lifeboat Associates Software Bus-86 aka SB-86, a version of MS-DOS for x86 16-bit computers.
* Component Object Model for in-process and interprocess communication.
* D-Bus for interprocess communication.
* Enterprise service bus for distributed communication.

## See also

* Bus (computing)

## References

1. ↑ "Definition of software bus" (in en). https://www.pcmag.com/encyclopedia/term/software-bus.
2. ↑ Clarke, A.; Eaton, J. M.; David, D. Powys Lybbe (October 26, 1983). CP/M - the Software Bus: A Programmer's Companion. Sigma Press. ISBN 978-0905104188.
3. ↑ Johnson, Herbert R. (July 30, 2014). "CP/M and Digital Research Inc. (DRI) History". https://retrotechnology.com/dri/d_dri_history.html.
4. ↑ Duncan, Ray (1988). The MS-DOS Encyclopedia. Microsoft Press. p. 27. https://books.google.com/books?id=fVEPAQAAMAAJ&q="Software+bus". "Further complications arose when Lifeboat Associates agreed to help promote MS-DOS but decided to call the operating system Software Bus 86. MS-DOS thus became on of a line of trademarked Software Bus products, another of which was a product called SB-80, Lifeboat's version of CP/M-80."

## External links

* Microsoft MSDN: Microsoft on the Enterprise Service Bus (ESB)

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