Does the Technological Industry have any negative or positive externalities the industry produces?...?

Question

Does the transaction of a buyer and seller directly affect a third part and is the effect a negative or positive externality? How does the externality impact the economy? Does the Technological Industry produce publice goods, private goods, or is it a natural monopoly? Are the goods or resources rival, excludable, or neither? Explain...

Or does anyone have any great website where I can further my research on the Technological Industry that is creditable?

Answer 1

There are numerous companion products to most of the technological products that consumers purchase.  

Examples:

Software & external add ons for computers

cables for cars, songs & videos for Ipods

videos,Cable systems & sound systems for televisions

There seem to be many alternatives for each of the products created by the technological industries.  

example:

There are many competing PDA type devices.

Such a situation is not monopolistic.  Patents give a leg up to some people for a period of time, but after the patent runs out society in general can use the technology.  So in a sense there is a private goods aspect that is then followed by a public goods aspect.