Computer Lecture – 5

Let’s start with discussion on Static and Dynamic IP address.

As the name suggests...

Static IP address is permanently assigned to a device which is not changed dynamically.

But a dynamic address is assigned temporarily which is assigned when the device is connected to the internet.

You know?

Generally, Dynamic IP address is used for devices.

In Computer – Science sometimes a term is used called Tuple.

What is tuple?

This term is used in Relational data base management system (which we discussed in earlier lecture.)

A tuple is basically a row of a table.

Simple...

Let’s come to know about ODBC:

ODBC stands for Open Database Connectivity.

It is basically a protocol which is used in order to connect DBMS like Oracle etc. with High level language like Java etc.  Commands have to be used in high level languages to work on database.

Thus, ODBC provides connection between high languages and data base management system.  

Many times ... we use a common term called “Protocol”.

What it is?

Protocol is basically a set of rules for various purposes like for communication.

In this context, sometimes a term is used called “VOIP”.

It’s the reason behind voice call etc.

VOIP stands for Voice Over Internet Protocol.

In Networking, a common term is used called gateway.

Do you know?

What it is?

Gateway is basically a gate or an interface between two networks that use different protocols.

Sometimes ... question is raised about NIC.

NIC means Network Interface Card.

It’s basically a device used in Computer.  

This device is used by computer to access network.  

Let’s wind up this lecture with one more concept known as “Repeater”.

Repeater: It’s basically a device which is used in networking.

Sometimes, signal that is transmitted in a network becomes weak.

Repeater takes this signal as input and as output it generates it again and provides it more strength so that it can be transmitted to longer distance.  

Many times, complex questions are asked on these terms. But until we are not aware about basic concepts of these terms we can never successfully tackle questions related to the basic concepts.  

In further lectures, we will explore more terms and concepts.