It is the set of technology from Microsoft, on which all
other Microsoft technologies will be depending on in future.

i think i m not sure , but .net is a collection of
foundation classes, linker,loader and compilers.The .net
provides us an environment in which we can build an application.

.NET is the microsoft product using .net we can create 
either window based applications(c# and GUI),and web based 
applications(asp.net,c#) and console applications(c#).
we can create mobile applications also.

From my point of view .net is a set base classes and 
namespaces such as sql connection,text, 
drawing,Configuration,Security,etc... which provides us an 
environment(Framework).With the help of this framework we 
can create web applications,console applications and mobile 
applications.

.NET is the microsoft product using .net we can create 
either window based applications(c# and GUI),and web based 
applications(asp.net,c#) and console applications(c#).
we can create mobile applications also.

.NET is a framework or technolgy..Net is both a business 
strategy from Microsoft and its collection of programming 
languages support for what are known as Web services, the 
ability to use the Web rather than your own computer for 
various services..NET applications will only run on 
Microsoft platforms, such as Windows Server or Windows XP.

.net is a framework developed by the MS.

using this we can develop web services 

and 

>>>console applications
>>>window based application
>>>and web based applications

Dot Net is feature rich platform for development,execution 
and deployment of distributed applications over the web

The .NET Framework is Microsoft's comprehensive and
consistent programming model for building applications that
have visually stunning user experiences, seamless and secure
communication, and the ability to model a range of business
processes.

.net is a collection of languages technologies&services.it 
providesd langs like c#.net,vb.net,vc++.net by 
microsoft.Other type of lang are restricted for developing 
one perticuler application,but .net is not restricted any 
one perticuler application &by using .net we can develop 
atmost any type of application.

.net is network enable technology.
the place where we can develop the applications .It contains several base class libraries .
.net is a frameworks  it means it contains the predefined class for re-usability and common language specification and common type specification .Using the predefined libraries we can develop our applications  using any one of the .net languages .