Computer Application. Software, also known as a set of instructions or code created in a program to carry out a task or function on a computer, is referred to as an "application." Applications are end-user programs that assist users in performing several tasks on a computer, hence they play a significant part in a computer. The knowledge required to use application software on a computer is provided by a computer applications program. Word processing, spreadsheets, databases, desktop publishing, the Internet, and Windows operating systems are examples of applications. A computer is a handy instrument that can be used for decision-making, processing student data, creating manuals and references, and teaching and learning. Online learning also makes use of computers. occupations. Computers are used for budgeting, process control, and industrial research. Any computer's operating system is the most crucial piece of software. An operating system governs the operation of every computer system. Applications for computers facilitate communication, workflow, and efficiency. It makes sense that companies would wish to exploit them. However, all programs require intelligent users, as we well know. Companies seek qualified personnel who can reach their full potential. A utility system is a business-oriented system, such as a public ledger. DEMATEL (Decision-Making Trial and Evaluation Laboratory). They are divided into analyses using the Computer Application of the Reliability, Security, Data Storage, Data location, Mobility Evaluation Parameters Reliability, Security, Data Storage, Data location, Mobility in the value. Reliability, Security, Data Storage, Data location, Mobility. Reliability, Security, Data Storage, Data location, Mobility. Data Storage has the highest rank whereas Data location has the lowest rank.