Diploma in Computer Application is the full form of the term DCA. An institution's curriculum and length can determine how long a diploma in computer applications (DCA) takes, however it typically lasts six months. For those aspiring to improve their proficiency with computer applications, it has been designed. Fundamentals of computer applications are the main topic of the course. The DCA course can last anywhere from six months to a year, however exact times will vary. Software engineering, web development, and computer assistance are just a few of the IT-related professions in which DCA graduates might find work.