When does the ALU get activated? Choose the most appropriate answer. O once an instruction that involves a calculation comes to the CPU
O once an instruction comes to the computer and needs to be compiled
O once an instruction comes that needs to be converted to machine language
O once an instruction comes to the CPU and needs to be timed

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.