what is computer enginner?

Answer 1

A computer engineer is one who works in the field of computer engineering.

Computer engineering (sometimes also called electronic and computer engineering) is a discipline that combines elements of both electrical engineering and computer science[1]. Computer engineers are electrical engineers that have additional training in the areas of software design and hardware-software integration. In turn, they focus less on power electronics and physics. Computer engineers are involved on all aspects of computing, from the design of individual microprocessors, personal computers, and supercomputers, to circuit design, as well as the integration of computer systems into other kinds of systems (a motor vehicle, for example, has a number of subsystems that are computer and digitally oriented)[2]. Common computer engineering tasks include writing embedded software for real-time microcontrollers, designing VLSI chips, working with analog sensors, designing mixed signal circuit boards, and designing operating systems. Computer engineers are also well-suited for research in the field of robotics, which relies on using computers together with other electrical systems.

Answer 2

Computer engineers work with the hardware and software aspects of systems design and development. They usually apply the theories and principles of science and mathematics to design hardware, software, networks, and processes and to solve technical problems. Whereas their work emphasizes the application of theory, computer engineers are also involved in building prototypes. They often work as part of a team that designs new computing devices or computer related equipment, systems or software.
http://www.delta.edu/jobplace/CareerProfiles/computerengineerprofile.html
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Answer 3

a computer programmer, they write software.

Answer 4

they write software