Hello aspirant
Diploma in computer application is a one year course in the field of computer applications. It can be pursued after 10+2 or post graduation. After this you can pursue your careers in being a web designer, software developer, c++ developer, accountant, computer operator etc.
Copa is also a one year course which one can pursue after 10. It provides employment opportunities like assistant programmer, faculty member, computer operator, dtp operator, sales person etc.
Out of the two dca is a better option because, firstly it a graduation, secondly it also provides better and interesting job opportunities.
Hope this helps
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