‘.mpg’ extension refers usually to what kind of file

Codes consisting of light and dark marks of various thickness which may be optically read is known as:

A device that modulates signals to encode digital information and demodulates signals to decode the transmitted information :

A computer program that is used to convert an assembly language to machine language is:

 An attempt to criminally and fraudulently acquire sensitive information, such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic communication is termed as:

Who is considered to be the first programmer