explain the differences between SDTV and HDTV. Explain how the pixel count of each scan line, the number of lines, and the scanning method (interlaced or progressive) contribute to "high-definition.

Discuss the ways in which electronic information associated with payments is addressed in terms of security. include encryption, secure sockets layers, and secure electronic transactions in your discussion. are there any other ways that consumers and businesses can keep their payment information secure in an electronic commerce environment? do you feel that your information is safe when conducting electronic business? why or why not?