a Dolby/Bose multi-channel theatrical sound system, the tradition has continued unchanged for decades. A second tradition is less obscure; if there is an annoying technical problem with the screening (e.g. bad focus, bad sound, a botched film reel switchover), eventually an annoyed patron will yell out "Focus!" (for example), and "LSC...Sucks!", with the crowd chiming in loudly on the second word. This outcry alerts the projectionist, who might not have noticed the defect, to fix the problem. Student Information Processing Board The Student Information Processing Board (SIPB) is a computing and information technology student group at MIT. SIPB was founded in 1969 by Bob Frankston. The organization helps MIT students access computing resources and use them effectively. SIPB has funded, developed, and maintained several important software projects at MIT, including a dynamic web hosting service, a course planning assistant, a virtual machine service, and an instant messaging client. SIPB has contributed extensively to Project Athena, the distributed academic computing environment used at MIT today. TechX TechX is a student group that organizes events that bring technology, new ideas, and tech-industry innovators to MIT's campus. These events include: HackMIT, the university's largest annual hackathon xFair, a job fair and technology expo MakeMIT, a hackathon dedicated to hardware and making Blueprint, a hackathon for local high school students THINK, a STEM educational outreach initiative ProjX, a program that provides funding for MIT student projects Miscellaneous MIT has many student groups. Other notable ones include: MIT EMS — student-run ambulance MIT Outing Club — student-run outdoors club Pi Tau Sigma — Mechanical Engineering honorary society Eta Kappa Nu — Electrical Engineering and Computer Science honorary society MIT Science Fiction Society — claims to have the "world's largest open-shelf collection of science fiction" in English. MIT Assassins' Guild — a live-action roleplaying group Sloan Business Club — Largest undergraduate business club Competitions $100K Entrepreneurship Competition The annual MIT $100K Entrepreneurship Competition has supported the creation of at least 60 companies worth a combined $10.5 billion since it started in 1990. Harvard–MIT Mathematics Tournament The Harvard–MIT Mathematics Tournament (HMMT) is a mathematics competition for high school students. It is held twice each year in February and November. IDEAS Global Challenge MIT IDEAS Global Challenge encourages teams to develop and implement projects that make a positive change in the world. Entries are judged on their innovation, feasibility, and community impact. One component of the competition is