There are four factors that influence computing performance. Write the number

$($a$,$b$,$c$,$d$)$ of the corresponding element in the blank to properly describe how each

element affects performance.

$($a$)$ Algorithm $($b$)$ Programming language, compiler, architecture $($c$)$ Processor and memory systern $($d$)\frac{\frac{?}{?}}{0}$

system $($including OS$)$

$1-(1)$

$1-(2)$

determine$($s$)$ how fast ifstructions are executed.

$1-(3)$

determine$($s$)$ how fast $\frac{1}{0}$ operations are executed.

$1-(4)$

determine$($s$)$ number of operations executed.

determine$($s$)$ number of machine instructions executed per oparation.