If you press the key corresponding to letter A on the keyboard, what process is carried out inside the CPU to display the letter on the screen? A. The CPU stores the keystroke as the letter ‘A’ and displays it on the screen. B. The keyboard transfers the letter ‘A’ directly to the monitor, without passing through the CPU. C. ‘A’ is converted to binary code, which the CPU processes. The computer then converts the code back ‘A’ for display. D. ‘A’ is converted to special characters, which the screen translates back to ‘A’ for display.

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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