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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.
Register-to-Register Architecture In this organization results and operands are not accessed straight from main memory by scalar or vector registers. The vectors that are neede
How many flip-flops are required to construct mod 30 counter ? Ans. Mod - 30 counter +/- requires 5 Flip-Flop as 30 5 . Mod - N counter counts overall ' N ' number of state
You will write a program that will solve a version of the common newspaper puzzle \word search." In the puzzle you are given a grid lled with characters and a list of words to nd
A 6-bit R-2R ladder D/A converter has a reference voltage of 6.5V. It meets standard linearity.Find (i) The Resolution in Percent. (ii) The output voltage for the word 011100.
Q. Definition of Lists? Another type of list is a definition list. Definition lists have a heading and text appears below that. EXPERTSMI
A graph with n vertices will definitely have a parallel edge or self loop of the total number of edges are More than n(n-1)/2
Q. What are the types of Instructions? Computer instructions are translation of high level language code to machine level language programs. So from this point of view machine
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composition of two shm in right angles to each other to havingg time period in the ratio 1:2
A script kept information on potential subjects for an experiment in a vector of structures known as "subjects". The following show an example of what the contents may be: >> subj
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