Identify a computer system you have recently had experience with and prepare a potential computer security problem related to that system.

According to alisa miller foreign news bureaus

On early television stations, what typically filled the screen from around 11pm until 6am? test dummies test patterns tests testing colors

Light travels at a speed of 186,000 miles a second. the distance light travels in a year is 5,865,690,000,000 miles/year 5,865,695,000,000 miles/year 58,656,950,000,000 miles/year 6,789,000,0000 miles/year