hi 
test bed includes all the things required for testing
like software hardware etc

Hi

Test Bed Means Ready To Test With All Equipments(Test 
Environement)

Test bad means test environment and set of executable test cases

it means the thing we require before performance

an environment which contains software, hardware and all 
other equipments which are necessary for doing testing....

A Test bed is nothing but a representation of live 
database.Testing is performed on a barticular Test bed

A testbed is a platform for experimentation of large
development projects. Testbeds allow for rigorous,
transparent and replicable testing of scientific theories,
computational tools, and other new technologies.

The term is used across many disciplines to describe a
development environment that is shielded from the hazards of
testing in a live or production environment. It is a method
of testing a particular module (function, class, or library)
in an isolated fashion. May be implemented similar to a
sandbox, but not necessarily for the purposes of security. A
testbed is used when a new module is tested apart from the
program it will later be added to. A skeleton framework is
implemented around the module so that the module behaves as
if already part of the larger program.

In software, the hardware and software requirements are
known as the testbed.[dubious – discuss] This is also known
as the test environment.

Testbeds are also pages on the internet where the public is
given the opportunity to test CSS or HTML they have created
and are wanting to see the outcome.