GATE Overflow Test Series | Computer Organization and Architecture | Test 1 | Question: 9

Question

Two computers use register windows with the following characteristics. Determine which computer is using more number of the total number of registers and find their absolute difference.
$$\begin{array}{|l c c|}
\hline
& \text{Computer A} &\text{Computer B}\\
\hline
\text{Global registers} & 10 & 9\\
\text{Local registers} & 9 & 8\\
\text{Common registers} & 6 & 7\\
\text{Number of windows} & 8 & 4\\
\hline
\end{array}$$

• A. $B, 130$
• B. $A, 69$
• C. $A, 61$
• D. $B, 61$

Comments

Reference: https://www.philadelphia.edu.jo/academics/kaubaidy/uploads/ACA-Lect3.pdf

Answer 1

Register file size of $(A) = (L + C)W + G = (9+6)\times 8 + 10 = 130$
    
    Register file size of $(B) = (8+7)\times 4 + 9 = 69$
    
    Difference $= A - B = 61.$
    
    So, Option (C)

Comments

any reference to study this?

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@Rajat Maheshwari

Reference: https://www.philadelphia.edu.jo/academics/kaubaidy/uploads/ACA-Lect3.pdf

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See Pg – 7 (according to chrome) of the above resource