Here I am giving you name of some best computer courses in that you can take admission after passing B com course below :

Master of Computer Applications
Master of Computer Application in Commerce
Master of Computer Application in Software Systems
Master of Commerce in Computer Applications
Master of Commerce in Finance and Computer Applications
Post Graduate Diploma in Business Statistics and Computer Applications
Master of Philosophy in Computer Applications
Master of Science in Computer Applications
Master of Science in Finance and Computer Applications
Master of Science in Computer Application and Information Technology
Post Graduate Diploma in Computer Application
Post graduate diploma in software engineering (PGDSE)
Post Graduate Diploma in Computer Aided Design
Post Graduate Diploma in Computational Mathematics and Statistics
Post Graduate Diploma in Computer Management
Post Graduate Diploma in Front Office

Post Graduate Diploma in Computer Software Technology(PGDCST)
Advance Diploma in Computer Software Technology(ADCST)
Post Graduate Diploma in Computer Applications / Information Technology
Advanced Diploma in Computer Applications / Information Technology
Computer Teacher’s Training
Advanced Diploma in Telecom
Diploma in Computer Hardware
Advanced Diploma in Hardware & Networking (ADCHMN)
Diploma in Networking Technology(DNT)

Advanced Certification course in Computer Application (ACCA)
Certificate course in Desktop Publishing
Certificate course in Computer Application
Certificate course in Computer Operation and Application (CCOA)
Certificate course in C++ and Java (CPCJ)

Java
C
C++
Oracle
MS office
Office Automation
Tally
Desktop Publishing