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2. ACC stands for? A. Accumulator B. Arithmetic Control Counter c. Active Character Counter D. Active Current Volume 3. What is the most important function of the CPU? A. does arithmetic B. fetches data from RAM to operate on, and stores results back into RAM C. controls the rest of the computer D. processor that makes decisions and decides what to do next based on the outcome, and without human operators 4. What will the function = UPPER(MID(K23,FIND("K",K23)-3,8) return if cell K23 contains York University? A. UNIVERSITY B. YORK U C. Y UNIVERSITY D. YORK UNI E. UNI 5. Which of these Excel functions will omit the first 3 characters from a text string in cell A3 while printing some other characters of the string? A. =LEFT(MID(A3, 3, 3, 4)) B. =LEFT(A3, 1) +1 C. =MID(A3, 3, 3, 4) D. =LEFT(A3, 3) E. =MID(A3, 3+1, 3) 6. A flag character is necessary to implement A. Run-length encoding B. Huffman encoding C. Keyword encoding D. Morse code E. both Morse code and Huffman encoding 7. Which of the following is an example of a register? A. Laptop B. Tablet C. PC D. AC E. Apple