Select the correct answer. In 1946, Peter Goldmark created a mechanical device for a color television system. How did the device work?
A.
A red-blue-green thread was waved in front of a series of discs.
B.
A red-blue-green tube was swung in front of a beam of light.
C.
A red-blue-green wheel was rotated in front of a cathode ray tube.
D.
A red-blue-green box was placed in front of a row of lamps.

i just did this question a few minutes ago! glad i can help! :

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability