EC $1(2$ points$)$

We discussed two important jobs of the operating system. Describe the two.

EC $2(1$ point$)$

What is the name of the person that developed the C programming language?

EC $3(7$ points$)$

Match the following mask with the appropriate description of what the mask will accomplish.

a$.$ Num $\backslash$& OxFF

b$.$ Num $\backslash$&$(\backslash (\{\}^\{($N x F F$)\}\backslash )$

c$.$ Num $^(\backslash (\backslash$sim $0$ x F F$)\backslash )$

d$.$ Num $|0$xFF

e$.$ Num $^$ Num

f$.$ Num $\backslash (\backslash$wedge $\backslash )$ all $0$ s

g$.$ Num $\backslash (\{\}^\{\backslash$wedge$\}\backslash )$ all $1$ s

Gives Num Gives the last byte of Num Gives all but the least significant byte and works with $\backslash (\backslash$underline$\{32\}\backslash )$ and $64$ bit word sizes. Gives all zero's

Allows you to set the least significant byte to all $1\text{'}$s

Gives the complement of Num

Complements all but the least significant byte.