Computer System pleases answer as much as you can from 14.5 to 16.7 Homework Num
ID: 3713373 • Letter: C
Question
Computer System
pleases answer as much as you can from 14.5 to 16.7
Homework Number 7 14.5 In recent years, much of the storage and communication of data has been in digital form, even if the source data is actually analog. Even most television is now transmitted digitally. What benefits and advantages are gained by using digital storage and signaling? 15.3 Concurrency, of course, is a requirement for modern operating systems. What are the major challenges that an OS designer faces in supporting efficient concurrency that she would not face if the operating system could just run one program at a time? 15.8 What is the difference between the logical description of a file and the physical description? 16.6 Explain piping. What additional capability does piping add to a command language? 16.7 Explain the concept of redirection. Illustrate your answer with an example of a situation where redirection would be useful.Explanation / Answer
{14.5 }
16.6}
As we see water flow from a pipe is in some orderly manner .the same way concept of piping is in coumputer system .it is related to data processing . in this data is processed in orderly manner . it contain register and combinational circuit .register keeps the data and circuit performs funtion /operations .
here output of one segment / part is input to other part .so the whole system is inter connected
If we talk in UNIX operating system .we use so many commands to complete variable tasks .so in this pipe is a way of passing information from one program to other.The output or result of the first command is served as the input to the second command sequence . hence it helps and make the process easier as you dont have to repeat the command and you can directly fetch data from one command to other .
in this commands are separated by “|”, which is tcalled as the pipe operator.
example :
ls -la | head >> new_folderfile
in first command , we listed all the contents of our directory that is ls,command then we grab the top ten listed and in third command we added them to the file new_folderfile. so by use of pipe operator and piping concept this becaome easier and faster else you would have to type three different commands .
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