A software developer is a person concerned with facets of the software development process. Their job includes designing, implementing, and testing the software. A software engineer, on the other hand, is a...

SMS sends a message phone to phone. IM send messages from computer to computer via the internet.

An LCD uses liquid crystals that are sandwiched between two sheets of polarizing material. DLP technology uses a digital micromirror device which comprises around 2 million hinge-mounted microscopic mirrors....