Cnit 176 Final Exam

Final Exam – CNIT 17600 – Summer 2011
Name: _______________________________
Multiple Choice (1 point each)
1. Which of the following is the technological advancement(s) that allowed the 4th generation of computing to begin?
a. Vacuum Tubes & Alternating Current Power Systems
b. Transistors & Alternating Current Power Systems
c. Transistors & Direct Current Power Systems
d. Integrated Circuits & VLSI
e. None of the Above
2. In the model of modern computing systems, applications that end uses directly interact with are located at which level?
a. Level 0 – Digital Logic
b. Level 1 – Control
c. Level 3 – System Software
d. Level 5 – High-Level Language
e. Level 6 – User
3. In the model of modern computing systems, the physical circuits and gates that actually perform the basic operations the computer are located at which level?
a. Level 0 – Digital Logic
b. Level 1 – Control
c. Level 3 – System Software
d. Level 5 – High-Level Language
e. Level 6 – User
4. Which of the following components of the central processing unit is responsible for retrieving instructions and then translating those instructions into executable operation codes and operands? a. Arithmetic Logic Unit
b. Control Unit
c. Registers
d. Program Counter
e. None of the Above
5. Which of the following is currently the most popular format for representing signed numbers in computing systems?
a. Signed Magnitude
b. One’s Complement
c. Two’s Complement
d. Nine’s Complement
e. None of the Above

6. The unsigned 8-bit binary value of 10410 is:
a. 1101000
b. 01101000
c. 11010000
d. 10010111
e. None of the above
7. The signed magnitude 8-bit binary value of 10410 is:
a. 1101000
b. 01101000
c. 11010000
d. 10010111
e. None of the above
8. What is the value of the two’s complement binary number 10011001?
a. 153
b. -153
c. -102
d. 103
e. None of the Above
9. Which of the following character codes is the international standard for representing data?
a. EBCDIC