tech revolutions Video: How Ajay Bhatt invented the USB and changed connectivity forever It has been 20 years since USB ports first appeared on personal computers and became the one connector to rule them all. Ramakrishnan M Jan 02, 2018 · 08:45 am Play Video Editor: Anmol Kanojia | Designers: Shruti Rego, Kimberly Pereira, Rubin D'Souza, Anirudh Ashar We welcome your comments at letters@scroll.in. Technology Computers USB