Give the Linux bash pipelined command that would take the output of the "cat /etc/passwd" command (that lists the contents of the system "password" file) and give us the single number showing how many accounts are configured in this file and store this information into the variable NUM_ACCOUNTS. Put only single spaces between commands, flags, piping operators, etc.

Many everyday occurrences can be represented as a binary bit. for example, a door is open or closed, the stove is on or off, and the fog is asleep or awake. could relationships be represented as a binary value? give example.

Why were most movies from the late 1890s until the early 1930s only filmed in black and white? there were only a few people who could afford the technology to produce color motion pictures back then. audiences did not want color motion pictures until later. the film used to make color motion pictures often overheated, which was a safety hazard, so it was generally not allowed. color films had to be hand-colored, frame by frame.

The basic work area of the computer is it screen that you when you first fire up your computer