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Q. What is Input-output processors?
let's briefly summarize the development in area of input/output functions. These can be briefed as below:
1. CPU directly controls a peripheral device.
2. Addition of I/O controller or I/O interface: CPU employs programmed I/O with no interrupts. CPU was separated from details of external I/O interfaces.
3. Contained use of I/O controllers however with interrupts: CPU need not spend time waiting for an I/O operation to be executed, increasing efficiency.
4. Direct access of I/O interface to memory through DMA: CPU involvement decreased to at beginning and at end of DMA operation.
5. CPU directs I/O processors to execute an I/O program in memory. I/O processor fetches as well as executes these instructions with no CPU intervention. This permits CPU to specify a series of I/O activities and to be interrupted only when complete sequence has been performed. With this architecture a large set of I/O devices can be managed with minimum CPU involvement.
With last two steps (4 and 5) a main change takes place with introduction of concept of an I/O interface capable of executing a program. For steps 5 the I/O interface is frequently referred to as an I/O processor and I/O channel.
Main Objectives: Uploading codes into the microcontrollers Interfacing between both microcontrollers via I 2 C Reading and writing into various ports on the MCU Int
Control Dependence Segments or Instructions in a program may obtain control structures. Thus, dependency between the statements can also be in control structures. But the order
A COCOMO model is :- COCOMO:- Constructive Cost Estimation Model.
please suggest me ,how to write microopertions,and study for computer architecture
What is MASK OPERATION The mask operation is similar to selective-clear operation except which the bits of Aare cleared only where there are corresponding 0's in register B. th
The logic 0 level of a CMOS logic device is approximately ? Ans. The low level is 0 volts approx in CMOS logic device.
Can we define our own Match Code ID's for SAP Matchcodes? Yes, the number 0 to 9 are reserved for us to make our own Match Code Ids for a SAP described Matchcode object.
provide answers for Luminous Jewels - The Polishing Game?
Using each connected device is assigned a time slot whether or not the device has anything to send. (A) WDM (B) FDM
Search mechanisms in Prolog: Here we can needs this simple Prolog program to describe how Prolog searches as:president(X) :- first_name(X, georgedubya), second_name(X, bush).
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