ls Noah Mendelsohn's Home Page

Noah Mendelsohn

Professor of the Practice
Office hours will be scheduled once the spring term begins. In the meantime, you are welcome to email me if you want to arrange to meet at some mutually convenient time. This term "meetings" will mostly be via video conference or phone, though I may occasionally arrange to meet students in person if a safe arrangement can be found. Tufts University Department of Computer Science


Spring term of 2021 I will be co-teaching COMP 11 with Professor Mark Sheldon. Plans beyond that are not set, but most years I teach Fall of 2020 I will teach COMP 117: Internet-Scale Distributed systems at least one term. That course was until 2017 numbered COMP 150-IDS.

Contacting me

Due to concerns about the COVID-19 virus I will rarely, if ever, be on campus this year. The best way to reach me is via e-mail to I read that regularly, including when I am away from home or office.

When I return to campus my Tufts office will be:

Halligan Hall 214
161 College Ave
Medford, MA, 02155

I prefer e-mail whenever that's quick enough for you, but for cases where it's urgent that you speak to me, I have established a Google Voice number 617-506-3994 that you can call or text. When you call, it will ask your name, and then it will try ringing my mobile, my home, etc. Be patient, it can take a minute or so while it tries my phones.

Office hours

During Spring term of 2021 I will be holding office hours at:

Days: Tuesdays and Thursdays
Time: 4:30 - 5:30 PM US Eastern Timezone

Meetings will be conducted in Zoom at the following location:

Meeting ID: 975 9536 3011 PW: MeetNoah
Direct link

When you connect you will be placed in a Zoom waiting room and I will find you there when I am done with other students. Tufts authentication is required to connect. Note that if you connect at times other than the ones advertised above you will likely wind up in the waiting room with nobody noticing.

If some problem comes up and I can't make office hours I will, if practical, make a posting on the COMP 11 Piazza site alerting you to the change.

If you are from outside the Tufts community (and thus can't authenticate with the Zoom room) or are in a timezone that makes the usual meeting times impractical, email me and we will work out some arrangement to meet.

Work outside of Tufts

Until summer of 2013 I was for several years the chair of the World Wide Web Consortium's Technical Architecture Group; the TAG is the senior steering committee responsible for the architectural integrity of the World Wide Web. I retired from IBM in 2010, and I hold the honorary title of IBM Distinguished Engineer Emeritus.

More information

Those of us who worked at W3C tend to find a lot of our specification drafts and e-mails posted publicly on the Web. That greatly increases our search karma so... if you do a Web search for my name, most of what comes back will indeed be about me. Other sources of information about my work, hobbies, etc. outside of Tufts can be found at:

The Web site includes my work history, a list of my publications and talks, and a page describing some CS papers that I particularly like.