Question:
Which of the following frees the CPU from having to deal with transfer of memory to or from I/O device?
Which of the following frees the CPU from having to deal with transfer of memory to or from I/O device?
Show Hint
DMA helps in offloading data transfer tasks from the CPU, improving overall system efficiency, especially in high-speed applications.
Updated On: Jun 16, 2025
- Interrupts
- Direct Memory Access
- Buffer cache
- Device Driver
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Direct Memory Access (DMA) allows peripherals to transfer data to and from memory without involving the CPU. This frees the CPU from handling the memory transfer process and allows it to focus on other tasks. Interrupts notify the CPU when attention is needed, but DMA handles the data transfer itself.
Was this answer helpful?
0
0
Top Questions on Computer Architecture
- In general, there will be _______ inodes than directories in Unix File system.
- AP PGECET - 2025
- Computer Science & Information Technology
- Computer Architecture
- In FCFS, I/O bound processes may have to wait long in the ready queue waiting for a CPU bound job to finish. This is known as _______ .
- AP PGECET - 2025
- Computer Science & Information Technology
- Computer Architecture
- Which of the following is not a three-address code statement?
- AP PGECET - 2025
- Computer Science & Information Technology
- Computer Architecture
- The output of a syntax-directed translation scheme is _______ .
- AP PGECET - 2025
- Computer Science & Information Technology
- Computer Architecture
- Inherited attributes in SDTs are used for _______ .
- AP PGECET - 2025
- Computer Science & Information Technology
- Computer Architecture
View More Questions
Questions Asked in AP PGECET exam
- The probability distribution of a random variable \( X \) is given below:
\[ \begin{array}{|c|c|c|c|c|c|} \hline X = x & 10 & 20 & 30 & 40 & 50 \\ \hline P(X = x) & k & 2k & 3k & 4k & 5k \\ \hline \end{array} \] Then, \( P(X = 50) - \dfrac{P(X < 30)}{P(X > 20)} \) = ...........
- AP PGECET - 2025
- Probability
- The values of a function \( f(x) \) at discrete values of \( x \) are given in the following table:
\[ \begin{array}{|c|c|c|c|c|c|} \hline x & 0 & 1 & 2 & 3 & 4 \\ \hline f(x) & 1 & 4 & 8 & 10 & 15 \\ \hline \end{array} \] Using Trapezoidal rule, the value of \( \int_0^4 f(x)\,dx \) is ...........
- AP PGECET - 2025
- Numerical Methods
- If \( X \) is a continuous random variable with the probability density function \[ f(x) = \begin{cases} K(1 - x^3), & \text{if } 0 < x < 1 \\ 0, & \text{otherwise} \end{cases} \] Then, the value of \( K \) is ..........
- AP PGECET - 2025
- Probability
- The complex-valued function \( f(z) = iz - |z|^2 \) is analytic at ...........
- AP PGECET - 2025
- Complex numbers
- Convert the non-linear equation \( xy' + y = x^4 y^3 \) into a linear one using the transformation \( z = y^{-2} \).
The linear equation is ...........- AP PGECET - 2025
- Differential Equations
View More Questions