1. From Wikipedia:

“Technology has more than one definition. One is the development and application of tools, machines, materials and processes that help to solve human problems. As a human activity, technology predates both science and engineering.

The term technology thus often characterises inventions and gadgets using recently-discovered scientific principles and processes. However, even very old inventions such as the wheel exemplify technology.

Another definition — used by economics — sees technology as the current state of our knowledge of how to combine resources to produce desired products (and our knowledge of what can be produced). Thus, we can see technological change when our technical knowledge increases.”

2. From Merriam-Websters:

Etymology: Greek technologia systematic treatment of an art, from technE art, skill + -o- + -logia –logy

1 a : the practical application of knowledge especially in a particular area : ENGINEERING 2 <medical technology > b : a capability given by the practical application of knowledge <a car's fuel-saving technology >

2 : a manner of accomplishing a task especially using technical processes, methods, or knowledge <new technologies for information storage>

3 : the specialized aspects of a particular field of endeavor <educational technology >

3. From the Oxford English Dictionary:

1. a. A discourse or treatise on an art or arts; the scientific study of the practical or industrial arts.

     b. transf. Practical arts collectively.

     c. With a and pl. A particular practical or industrial art.

     d. high-technology applied attrib. to a firm, industry, etc., that produces or utilizes highly advanced and specialized technology, or to the products of such a firm. Also (unhyphened) as n. phr. Similarly low-technology . Cf. high tech s.v. TECH 3 1.

2. The terminology of a particular art or subject; technical nomenclature.

3. = Gr. : see etym. Obs. rare 1 .

4. Special Combs.: technology assessment , the assessment of the effects on society of new technology; technology transfer , the transfer of new technology or advanced technological information from the developed to the less developed countries of the world.

4. From UK Technology Education Center (http://atschool.eduweb.co.uk/trinity/watistec.html):

What Counts as Technology?

Throughout the twentieth century the uses of the term have increased to the point where it now encompasses a number of “classes” of technology:

1. Technology as Objects:
Tools, machines, instruments, weapons, appliances - the physical devices of technical performance

2. Technology as Knowledge:
The know-how behind technological innovation

3. Technology as Activities:
What people do - their skills, methods, procedures, routines

4. Technology as a Process:
Begins with a need and ends with a solution

5. Technology as a Sociotechnical System:
The manufacture and use of objects involving people and other objects in combination