EECS 1520 FINAL EXAM UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

EECS 1520 FINAL EXAM UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. What decimal numbers represent decimal Arabic numbers?
Answer:
48-57 48 represents 0

Question:
2. What is the earliest ancient computing device?
Answer:
Abacus

Question:
3. When and where did the abacus originate?
Answer:
5000 years ago Babylonia

Question:
4. Algorithm
Answer:
A methodical, logical rule or procedure that guarantees solving a particular problem.

Question:
5. Euclidean algorithm
Answer:
Finding the greatest common divisor of two numbers

Question:
6. Sieve of Eratosthenes
Answer:
Algorithm for finding prime numbers named for a Greek mathematician

Question:
7. Name a manual calculating machine
Answer:
Slide rule

Question:
8. What did Jacquard Loom create that was later used to code?
Answer:
Punch cards to create patterns for textiles Weaving Loom

Question:
9. How was a punch card used to represent information?

,Answer:
The presence and absence of holes

Question:
10. George Boole
Answer:
created boolean algebra and laid the foundation of digital computing circuitry

Question:
11. What existing concept did Claude Shannon introduce to computing machines?
Answer:
Boolean logic

Question:
12. Who is considered the father of modern information age?
Answer:
Claude Shannon

Question:
13. Who introduces the th CPU - memory operating system?
Answer:
Von Neumann

Question:
14. What instruction cycle did Von Neumann create?
Answer:
Fetch, decode, execute

Question:
15. What contribution did Alan Turning have in WWII?
Answer:
Decrypting the code for the German Enigma machine

Question:
16. What was the Enigma machine?
Answer:
the most sophisticated code system of its day, and a priority for the Allies to break it as the Germans
believed it was unbreakable

Question:
17. Who created the Turning machine?
Answer:
Alan Turning

Question:
18. What is ENIAC and what was its signifigance?significance

, Answer:
Electronic Numerical Integrator And Computer The first general purpose computer

Question:
19. What was ENIAC first used for?
Answer:
commissioned by the United States Army for computing ballistic firing tables

Question:
20. What two qualities did ENIAC have?
Answer:
Huge scale and redundant design

Question:
21. What did ENIAC use to control electrical signals?
Answer:
Vacuum tubes

Question:
22. True or false: ENIAC used Von Neumann Architecture?
Answer:
False. Manual programming of boards, switches and "function table"was used

Question:
23. What were the cons of vacuum tubes?
Answer:
large, generated a lot of heat in use, and prone to failure

Question:
24. Who created the first complier and what did it do?
Answer:
Grace Murray Hopper Improved the speed and efficiency of programming

Question:
25. Complier went from -- level language (----) to -- level language (---)
Binary code Low High Source code
Answer:
High Source Low Binary

Question:
26. What was the most important invention of the 20th century for computers?
Answer:
The transistor

Question:
27. What are 4 improvements the transistor had on technology?