Describe the ISDN

Q 5 (a). Describe the ISDN ?

Integrated Services Digital Network (ISDN)

Integrated Services Digital Network (ISDN) is a telephone system network. It is a wide area network which is widely available. Before to the ISDN, the telephone system was viewed as a way to transport only voice, with some special services available for data. The key feature of the ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system.

Database relationship

Microsoft Access is an example of relational database. In relational data base we can join a table to more than one table which makes relationship. With this capability our access database becomes more powerful than non-relational data base category. Consistency of database become easy and easily achieve by database on automatically.  If you want to make relationship in access database then you need at least two tables and one field must be common in both tables. For example, we are going to make relationship between two tables’ student and canteen. Student table store record of student and canteen stores what the products students are having. So in this type of relationship student is master table and canteen is related table. So student table need a primary key which uniquely identified a record from student table. Canteen table must have a key which match the data type of student table primary key which further known as foreign key.

January 2016 M2-R4 INTERNET TECHNOLOGY AND WEB DESIGN

January 2016  INTERNET TECHNOLOGY AND WEB DESIGN

Answer Key

Core Java Assignment 25

A10.1-R4: INTRODUCTION TO OBJECT ORIENTED PROGRAMMING THROUGH JAVA.

Assignment 25

Some combined bath-showers have two faucets and a lever for controlling the flow of the

water. The lever controls whether the water flows from the showerhead or directly into the

tub. When the water is first turned on, it flows directly into the tub. When the lever is