There were many names mentioned in this section. Give a brief description for the person named in problem, telling how they were related to the development of computers.
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Douglas Engelbart
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A. 1st working computer, ENIAC
B. founder of Microsoft
C. invented computer mouse
D. cofounder of Apple
E. founder of I.B.M computers
Answer: C
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = 10xi + 10yj + 10zk , S is the surface of the sphere x2 + y2 + z2 = 1 in the first octant, direction away from the origin
A. 0
B. 
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C. 
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D. 5?
Use De Morgan's law to write an equivalent statement for the sentence. It is false that cats are lazy or dogs are not friendly.
A. Cats are lazy and dogs are friendly. B. Cats are not lazy or dogs are friendly. C. Cats are not lazy or dogs are not friendly. D. Cats are not lazy and dogs are friendly.
Express the set using the roster method. the set of odd natural numbers less than 21
A. {2, 4, 6, . . . , 20} B. {1, 3, 5, . . . , 19} C. {0, 1, 3, 5, . . . , 19} D. {1, 3, 5, . . . , 21}
Identify the terms in the polynomial.6n4 - 14n3 - 8n + 21
A. 6n4, 14n3, -8n, 21 B. 6n4, -14n3, -8n, 21 C. 6n4, -14n3, 8n, 21 D. 6, n4, -14, n3, -8, n, 21