1.

Which of the followings is an unary Boolean function:

Select one:

a. Not

b. And

c. Or

d. Nand

2.

If you want to covert x to its negative value in 2s complement you should:

Select one:

a. invert (not) every bit in the number x.

b. invert the most significant bit of x.

c. invert every bit of x and add 1.

d. invert every bit of x and subtract 1.

3.

In the HDL implementation of the Bit chip, the output from the DFF is connected to the input of the Mux. This is done

Select one:

a. to convert the Mux into a sequential chip.

b. to ensure that the Bit value is retained after each clock cycle if load is off.

c. to ensure that the new input bit is stored on every clock cycle.

d. to ensure that the Bit value is retained after each clock cycle if load is on.

4.

If we want the ALU to compute the function y-1, what should be the value of the zx (zeroed) and nx (negated)?

Select one:

a. zx = 1, nx=1

b. zx = 0, nx=1

c. zx = 1, nx=0

d. zx = 0, nx=0

5.

The Screen and Keyboard chips have the same interface as RAM chips.

Select one:

True

False