In addition, some of the materials used in IQ tests may be totally foreign to certain cultures, thus creating inequalities and biases. It is interesting to note that IQ scores have increased so much over the 20th century that most of today's test takers would be considered 'geniuses' by 1900 standards.
Digital subscriber line (DSL; originally digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.
High Speed DSL. Some digital phone services use a digital service line (DSL) broadband connection. Ironically, DSL service works by splitting the broadband signal from regular voice traffic through the user's regular telephone jack.igh Speed DSL. Some digital phone services use a digital service line (DSL) broadband connection. Ironically, DSL service works by splitting the broadband signal from regular voice traffic through the user's regular telephone jack.