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When the user is inputting commands into your shell, it should properly handle delete and backspace. When one of these characters is detected, you will need to remove one character from the screen. For this, you can simply print a "\b" character to the screen. This will act as the backspace. Remember also to remove the character from the buffer you are using to store the
input. Here are the byte values for the delete and backspace characters:
delete --> 127
backspace --> 8
When the user presses delete or backspace, it should remove a character from the screen. But, it should not remove any of the prompts. For example, if the console looks like the following after the user typed the character "a",
/home/ p r o j e c t s / cs200 / spring12 / s h e l l >a
then if the user presses the backspace twice, the console should still look like:
/home/ p r o j e c t s / cs200 / spring12 / s h e l l >
Notice that the prompt is still intact.
Define Input-Output Interface. I/O interface gives a method for transferring information among internal storage and external I/O devices
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Which technique is an encryption technique? Ans. Block cipher technique and also Steam cipher technique is an encryption technique.
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An established communication session among a server and a workstation.
Explain CMOS Inverter with the help of a neat circuit diagram. Ans: CMOS Inverter: The fundamental CMOS logic circuit is an inverter demonstrated in Fig.(a). For above
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