Why vb is known as the front-end tool?
VB is basically a programming language. For keeping records, generally we use a database like Oracle, MS ACCESS, etc. dedicatedly to store data. These databases are not good enough to code a program to develop software. Hence we need to develop software where VB is used for the programming part and database is used for the data storage part. Thus VB makes a bridge between user and database. The database cannot be directly accessed by the user but through VB. Hence the database is the back-end tool and VB is a front end-tool.