You are in desperate need of cash, and you go see Nicky Eyes…

You are in desperate need of cash, and you go see Nicky Eyes (“What’s up, guy?”) to borrow $1000. He demands that you pay him back $1250 in exactly one week, or bad things will happen. What is the EAR/EFF of this loan? There are 52 weeks in a year. (Hint: calculate the APR of this loan, then use the EFFECT function.)

Consider that we are utilizing an application and we needed…

Consider that we are utilizing an application and we needed to deal with a file I/O operation. Consider that the system is currently in the user mode. Explain what happens in the next steps to allow us deal with I/O. Describe the scenario from the system’s perspective (so explain underlying mechanism).