In the 1960s, AT&T created a service known as ____, which multiplexed digital data and digitized voice onto a high-speed telephone line with a data rate of 1.544 megabits per second.?

Find out how many employees are managed by “James Adam.”

What will be an ideal response?

When your screen displays all formatting marks in a document, the dots between words represent ____.

A. margins B. punctuation errors C. spaces D. periods