Complex sentence: SEC has a 100-seat audio-visual room complete with all facilities such as LCD projector, computers, PA system and overhead projector, seminars and workshops etc. are carried out in this room.
Split into simpler sentences: SEC has a 100-seat Audio-Visual room complete with all facilities such as LCD projector, computers, P.A. System and Overhead Projector (OHP). Seminars and workshops etc. are carried out in this room.