Computer architecture problematic.

**NAME:**

CS610-151 MIDTERM 2

## I. TRUE OR FALSE

**1.** There are 70 tens in the number 679.

**2.** Although convenient for computers, the binary system is exceedingly hard for human beings.

**3.** Logical functions are implemented by the interconnection of decoders.

**4.** Boolean functions can be implemented in electronic form as a network of gates.

**5.** The instruction set is the programmer’s means of controlling the processor.

## MULTIPLE CHOICE

**6.** The unary operation _ inverts the value of its operand.

A. OR B. NOT C. NAND D. XOR

**7.** Which of the following is correct?

A. 25 = (2 x 102) + (5 x 101)

B. 289 = (2 x 103) + (8 x 101) + (9 x 100)

C. 7523 = (7 x 103) + (5 x 102) + (2 x 101) + (3 x 100)

D. 0.628 = (6 x 10-3) + (2 x 10-2) + (8 x 10-1)

**8.** There must be __ instructions for moving data between memory and the registers.

A. branch B. logic C. memory D. I/O

**9.** __ _ instructions provide computational capabilities for processing number data.

A. Boolean B. Logic C. Memory D. Arithmetic

10_________ instructions are needed to transfer programs and data into memory

and the results of computations back out to the user.

A. I/O B. Transfer C. Control D. Branch

**II.**

Discuss the strategies to solve Data Hazards, which one is the most efficient, can we always use it? Explain?

**III.**

a) Find all the dependencies in the above program, will those be Hazards?

b) Fill out the schedule for a classic pipeline with no forwarding of this program

c) Fill out the schedule for a classic pipeline with forwarding

**IV.**

**1.** Find 10111 + 1011 in binary notation then convert to decimal.

**2.** Write the Boolean expression corresponding to the circuit below:

**3.** Draw a circuit for the following Boolean expression:

**V.**

Read the section of the research article below, what computer architecture problematic this article discusses? Write your summary analyzes and reflection of the problem stated.