# Event Details - **Event Name**: Hybrid: Lisp Machines: Hardware and Software Architecture Influence - **Event Start and End Date**: Thu, 19 Nov, 2026 at 02:30 pm – Thu, 19 Nov, 2026 at 04:30 pm (+00:00) - **Event Description**: Lisp was initially implemented as an function, often monolithic, system on conventional hardware.About this EventSpeakerStephen KaislerSynopsisLisp was initially implemented as an function, often monolithic, system on conventional hardware – the IBM 700 and 7000 series, the DECsystem 10 as the primary workhorse, and other mainframes.Designers and computer architects realised that direct execution could yield substantial performance improvement. As a result, two classes of Direct Execution of Lisp machines were developed: Xerox PARC Interlisp D-Machines and Common Lisp variants of the MIT CADR machine.Each class of machines explored different aspects of the residential environment in which all software development, testing, and deployment was performed without resort to external software.This talk will examine the different directions each class developed, the class architectures, their influence on software engineering, and why they were overtaken by technology and exited the hardware stage in the 1990s to 2000s.About the speakerDr Stephen Kaisler is a semi-retired program manager and research scientist in Defence and Intelligence. He is currently associated with SHK & Associates, where his current research areas are natural language processing, advanced analytics, and computational consciousness and awareness. He was Technical Advisor to the Sergeant at Arms of the U.S. Senate, where he was responsible for systems architecture and modernisation of business operations for the U.S. Senate. He has been Adjunct Professor of Engineering since 2002 in the Department of Computer Science at George Washington University.He teaches graduate courses in Big Data and Analytics, Software Engineering, Guided Research Methods, and Symbolic AI Systems in the Dept. of Computer Science. He earned a D.Sc. (Computer Science) from George Washington University, where he wrote a dissertation: Making Concurrency Explicit: Converting Object-Oriented to Process-Oriented Programs. He also earned an M.S. (Computer Science) and B.S. (Physics) from the University of Maryland at College Park.He has authored 19 books and published over 50 technical papers. He has been Primary co-Chair for two minitracks at the Hawai'i International Conference on Systems Sciences (HICSS).Our events are for adults aged 16 years and over.This meeting is conducted in accordance with the BCS Code of Conduct for Meetings.BCS is a membership organisation. If you enjoy this event, please consider joining BCS. You’ll be very welcome. You’ll receive access to many exclusive career development tools, an introduction to a thriving professional community and also help us Make IT Good For Society. If you are attending in person, please familiarise yourself with the Visitor Instructions for the BCS London Office.Please note, if you have any accessibility needs, please let us know via groups@bcs.uk, and we’ll work with you to make suitable arrangements.BCS privacy notice: your data will be processed by BCS in accordance with our data privacy notice.Photography: by attending this event, you may be photographed or filmed. Please speak to a member of staff if you do not wish to be included.For overseas delegates who wish to attend the event, please note that BCS does not issue invitation letters.This event is brought to you by: Computer Conservation Society - **Event URL**: https://allevents.in/london/hybrid-lisp-machines-hardware-and-software-architecture-influence/100001994144611213 - **Event Categories**: workshops, science-fair, meetups, art, nonprofit, business, conferences - **Interested Audience**: - total_interested_count: 0 - **Event Highlights**: - Duration: 2 hours - Location: BCS, The Chartered Institute for IT - Languages: English ## Ticket Details - **Ticket Price Range**: min: 0, max: 0, currency: GBP ## Event venue details - **city**: London - **state**: EN - **country**: United Kingdom - **location**: BCS, The Chartered Institute for IT - **lat**: 51.5168719 - **long**: -0.0877157 - **full address**: BCS, The Chartered Institute for IT, 25 Copthall Ave, London, United Kingdom ## Event gallery - **Alt text**: Hybrid: Lisp Machines: Hardware and Software Architecture Influence - **Image URL**: https://cdn-az.allevents.in/events1/banners/86b45997d16cf9aa06c7c68028f0bb97ba8ee196f7566d50cdc5d1f8c7b29fc5-rimg-w1200-h600-dc006b41-gmir.jpg?v=1785067813 ## FAQs - **Q**: When and where is Hybrid: Lisp Machines: Hardware and Software Architecture Influence being held? - **A:** Hybrid: Lisp Machines: Hardware and Software Architecture Influence takes place on Thu, 19 Nov, 2026 at 02:30 pm to Thu, 19 Nov, 2026 at 04:30 pm at BCS, The Chartered Institute for IT, 25 Copthall Ave, London, United Kingdom. - **Q**: Who is organizing Hybrid: Lisp Machines: Hardware and Software Architecture Influence? - **A:** Hybrid: Lisp Machines: Hardware and Software Architecture Influence is organized by BCS, The Chartered Institute for IT. - **Q**: What has been the experience of attendees at BCS, The Chartered Institute for IT's events? - **A:** Attendees have given BCS, The Chartered Institute for IT a rating of 4/5 based on reviews from early attendees on AllEvents. BCS, The Chartered Institute for IT has a verified profile on AllEvents where you can read reviews and explore their upcoming events. - **Q**: Who is this event for? Is it right for me? - **A:** Hybrid: Lisp Machines: Hardware and Software Architecture Influence is ideal for curious learners, students, and skill-builders looking to gain hands-on knowledge and practical expertise in a focused, interactive setting. Whether you're a first-time attendee or a longtime enthusiast in London, this event is thoughtfully curated to deliver a standout experience worth every moment. 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