1 The operating speed was quite slow. |
2 Power consumption was very low. |
3 They required large space for installation. |
4 The programming capability was quite low. |
A) 1, 3, 4
B) 1, 2, 3
C) 2, 3, 4
D) 1, 2, 4
E) None of these
Correct Answer: A
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