You will write a new system call getreadcount() for xv6 os. the return type and parameters are: int getreadcount(void) the call returns the total number of times the read() system call has been invoked since the time the kernel was booted. note that the kernel does not keep a counter. you have to add it.

Gabe wants to move text from one document to another document. he should copy the text, paste the text, and open the new document highlight the text, select the cut command, move to the new document, make sure the cursor is in the correct location, and select the paste command select the save as command, navigate to the new document, and click save highlight the text, open the new document, and press ctrl and v

When using a public computer or network, you should always

Given int variables k and total that have already been declared, use a while loop to compute the sum of the squares of the first 50 counting numbers, and store this value in total. thus your code should put 11 + 22 + 33 + + 4949 + 50*50 into total. use no variables other than k and total.