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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.
Describe the essential properties of the Real Time operating systems. Real time operating system has following essential properties: Time constraint result Priority
Q. Find simplified function F and implement that function using only NAND gates. 1. F(A,B,C) = (A+B) (A'+B+C') (A'+B'+C') 2. F (A,B,C) = A'B'C'+B'CD'+A'BCD'+AB'C' 3. F(X,Y
ARQ is transmitted in the event of: (A) Loss of signal (B) Error in received data (C) Improve reliability (D) During time out
Describe the operation of voltage to frequency ADC. Ans: A voltage-to-frequency converter i.e. VFC is an oscillator that frequency is linearly proportional to a control volt
Which of the memories stores the most number of bits ? Ans. 5Mx8 = 5 x 220 x 8 = 40M (max).
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An experts system has knowledge that lets it reason about its own operations plus a structure that simplifies this reasoning process. For example if an expert system
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