Identify and briefly discuss two primary causes of computer-related health problems.
What will be an ideal response?
Two primary causes of computer-related health problems are a poorly designed work environment and failure to take regular breaks to stretch the muscles and rest the eyes. The computer screen can be hard to read because of glare and poor contrast. Desks and chairs can also be uncomfortable. Keyboards and computer screens might be fixed in place or difficult to move. The hazardous activities associated with these unfavorable conditions are collectively referred to asworkstressors.Although these problems might not be of major concern to casual users of computer systems, continued stressors such as repetitive motion, awkward posture, and eye strain can cause more serious and long-term injuries. If nothing else, these problems can severely limit productivity and performance.
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A feature that adds to the UML vocabulary of shapes to make them more meaningful for the reader is called a(n) ____.
A. stereotype B. use case C. scenario D. extension
List three Microsoft operating systems and components that are compatible with SNMP.
What will be an ideal response?
The ____ adjustment allows you to manipulate the intensity level of shadows, midtones, and highlights using sliders and histograms.
a. Levels b. Gradients c. Threshold d. Color balance
Suppose a variable is passed by reference to a parameter of a Sub procedure, and the parameter has its value changed inside the Sub procedure. What will the value of the variable be after the Sub procedure has executed?
(A) It will have the newly modified value from inside the Sub procedure. (B) Its value can’t be determined without more information. (C) It will retain the value it had before the call to the Sub procedure. (D) None of the above