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Q. What is Command Prompt Interface?
Operating System gives a text based interface called command prompt. With the help of command prompt commands can be issued to perform file and disk management and to run program. Results of these commands are shown to the user as text message.
C:\>-
The command prompt can be an alphabet followed by one back slash (\), one colon (:), one greater than sign (>) and one blinking element called cursor (_).
Where C: represents the Drive letter (Current Drive)
\ represents the current folder / Directory
> represents the prompt's end
_ blinking element represents the Cursor
Always a cursor position decides that the recent typed letter from the keyboard will appear on that position.
Program to calculate the value of the series 1+x+x2+x3+.... +xn. Read the values of ''x'' and ''n'' from the keyboard.
With LDB one can change the pre-generated selection screen to their needs Yes with LDB one can alter the pre-generated selection screen.
What is the draw back of micro programmed control? It leads to a slower operating speed because of the time it takes to fetch microinstructions from the control store.
What are the special unit related fields and methods? The most significant method (in fact pseudo method) related to units is get_enclosing_unit(). The mostly used field in
what are the featrures of doubly link list.??????/
File History.d1 contains a brief history of computing. There are no indentations in this file. Write a program to read this file, inserting five blank spaces at the beginning of ea
What is a symbolic constant? How it is defined ? Symbolic constants are constants of any type declared by using the #define compiler directive. It is a preprocessor directive.
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What is an I/O buffer? What is the advantage of buffering? Is buffering always effective? Justify your answer with help of an example. One type of I/O requirement arises from
Explain Message switching. Recourse computer sends data to switching office that stores the data into buffer and seems for a free link. Sends link to other switching office, if
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