Why do we need dma, Computer Engineering

Assignment Help:

Why do we need DMA?

DMA is used to transfer the block of data directly among an external device and the main memory without the continuous intervention by the processor. 

 


Related Discussions:- Why do we need dma

What are disadvantages of eprom, What are disadvantages of EPROM? The c...

What are disadvantages of EPROM? The chip must be physically removed from the circuit for reprogramming and its whole contents are erased by the UV light.

How semaphores implement mutual exclusion, How semaphores implement mutual ...

How semaphores implement mutual exclusion? Mutual-exclusion implementation along with semaphores: Assume that there are n-processes and they share a semaphore, mutex (stan

Probabilistic hough transformation, The probabilistic Hough transform uses ...

The probabilistic Hough transform uses random sampling instead of an accumulator array. In this approach the number of random samples r, is not specified in the OpenCV call, but

What is pipelining, What is pipelining? It is a method of decomposing a...

What is pipelining? It is a method of decomposing a sequential process into sub-operations, with each sub-process being implemented in a special dedicated segment that operates

Define modem, Define Modem. A modem changes digital signals into audio ...

Define Modem. A modem changes digital signals into audio tones to be transmitted over telephone lines and also changes audio tones from the lines in digitals signals for machin

Simplify the expressions by using boolean postulates, Simplify the given ex...

Simplify the given expressions using Boolean postulates Y = (A + B)(A‾ + C)(B + C) Ans. Y = (A + B)(A‾ + C)(B + C) = (A A‾ + AC + B A‾ + BC) (B + C) = (AC + B A‾ + BC) (B + C)

What is mini frame size where propagation speed is 200 m µs, A CSMA/CD bus ...

A CSMA/CD bus spans a distance of 1.5 Km. If data is 5 Mbps, What is minimum frame size where propagation speed in LAN cable is 200 m µs. Usual propagation speed in LAN cables

Explain with the help of examples fifo algorithms, Explain with the help of...

Explain with the help of examples FIFO algorithms? FIFO policy: This policy easy removes pages in the order they arrived into the main memory. By using this policy we easily

Pre-os and runtime sub-os functionality, In a raw Itanium, a 'Processor Abs...

In a raw Itanium, a 'Processor Abstraction Layer' (PAL) is incorporated in system. When it's booted PAL is loaded in the CPU and provides a low-level interface which abstracts a nu

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd