The purpose of the operating systems is to provide an interface between the user and hardware. It's mange all resources, for example; memory, processors, and disk space. It's also mange how to file and store data in a computer system.
Answer:
Achieved Instruction per cycle rate is 
Solution:
As per the question:
Execution time, t = 1.4 s
No. of instructions being executed, n = 1.8 billion =
Clock speed of CPU, f = 3.2 GHz = 
Now, to calculate the actual issue rate achieved:
CPI (Cycle per Instruction) = 
CPI = 
Instruction per cycle is given as the reciprocal of CPI:
Instruction per cycle = 
When we say indirect perception checking, this is when we make confirmations about the information that we have gathered through passive perception. This is done by collecting information that may either support or negate our interpretation. Based on the given situations above, the one that makes a best exaple of what indirect perception checking is, is this: <span>observing your mother’s actions to see if she is angry. Answer is B.</span>
