CHENNAI: Tamil Nadu Science and Technology centre is organising a certificate course on computer awareness programmes in Windows and MS office at Periyar Science and Technology Centre Campus. The classes will commence on January 28. The duration of the course is 30 hours. The classes will be conducted between 4 and 6 pm. As the entries are restricted per batch, enrolments will be made on first come first serve basis. For more details call 24410025, 24402894 and 24915250.