Chandrasekhar (Chandra) Narayanaswami  Chandrasekhar (Chandra) Narayanaswami photo         

contact information

Distinguished Research Staff Member, Member IBM Academy of Technology, Member IBM Industry Academy
Thomas J. Watson Research Center, Yorktown Heights, NY USA


Professional Associations

Professional Associations:  ACM Fellow  |  American Association for the Advancement of Sciences  |  Fellow, IEEE  |  IBM Academy of Technology  |  IBM Industry Academy  |  INFORMS

more information

More information:  Publications - Google Scholar  |  Issued Patents - Google Patents  |  LinkedIn

Below is a collections of pictures from some of my past projects (in some order of societal impact).

The Linux Watch aka WatchPad 1998-2002

First Linux Watch Prototype Linux Watch Prototype with OLED display Linux Watch Prototype jointly built with Citizen Watch Company.

iWatch ComparisoniWatch Comparison Linux Journal Cover Page


Personal Mobile Hub and Connected Health 2002-2004

Personal Mobile Hub


 GeoCam - Navigation with Street Photos 1996-1998

Photos from 1997

1993 -  OpenGL 3D Softgraphics 



Soulpad - Mobile Personalization - 2005

three layer virtualizationusage sequence

EnterpriseMobile Loyalty - In Store Coupons via Mobile Checkin - 2008


BlockChain Based Maintenance Repair and Operations 2017


A variant of this picture appears in SHIELD SUPPLY CHAIN ASSURANCE TECHNOLOGY presented at the 2018 Electronics Resurgence Summit.

Enterprise Mashups Event Maps - 2010-11

Event MapsEvent Maps Location

Event Maps Heat MapEvent Maps Mobile

Mobile apps available currently for conferences organized by scientific associations including IEEE, ACM, AAAS, SIAM, INFORMS, ASME, etc., and commercial apps like EventPilot, Attendify, Eventbase for large events routinely provide several of the attendee experience features we first deployed and demonstrated. 

 Enterprise Mashups Oganization Maps - 2008-09


Screen Phone 1998 (Interactive Voice Response Unit Menu shown on Screen)

By extending the IBM Mwave Modem Dialer (IBM RealPhone) on IBM ThinkPad 755 CX, the interactive voice response menu was displayed and clickable, allowing callers to avoid having to listen to voice prompts and speed ahead - US Patent 6104790. Yes, this was before everything was on the web! Back then per min charges for 800 numbers were around 12-20c/min and such a system had cost benefits for the business too. This idea is currently instantiated in what is referred to as "Visual IVR" by several companies such as Jacada, Genesys, etc. Example video, and another example video.

Pictures from 1998


String Based Interfaces - 2005