1. Define the following terms:
A) bit: A binary digit.
B) byte: 8 bits
C) nibble: 4 bits
2. Regarding computer architecture, name 3 different ways you might you use to describe the state that a bit may be in?
A) true and false
B) 1 and 0
C) +5volts and Grounded, also set and unset
3.Concerning the characteristics of Main Storage. Answer the following questions as "True" or "False".
a) The Hard-Drive's storage is volatile. __FALSE__
b) The Hard-Drive's storage costs more per/MegaBytes than main-memory. __FALSE__
c) Main-memory has a slower access time than the Hard-Drive._FALSE_
d) Main-Memory's storage is volatile. _TRUE_
4.What do these abbreviations stand for:
KB __KiloByte__ kb __KiloBit__
MB __MegaByte__ GB __GigaByte_
5. Do the base two addition:
1 0 1
+ 1 0 1
=========
1 0 1 0
6. Do the base two subtraction:
1 1 0 1
- 0 1 1 0
============
0 1 1 1
7. Do the base two addition:
0 1 1 1
+ 1 0 0 1
=============
1 0 0 0 0
8) Convert 0 0 1 1 1 0 1 (base 2) to base 10.
29
9. Do the base two subtraction:
1 0 1 1 0 1 0 1
- 0 0 0 1 1 0 0 0
==================
1 0 0 1 1 1 0 1
10. Do the base two addition:
1 0 1 1 0 1 1 1
+ 0 0 1 0 1 0 0 1
=================
1 1 1 0 0 0 0 0
11) Convert 0 0 1 0 1 0 0 1 (base 2) to base 10.
41
12) Convert the the following base two number to base 16 using column grouping ( 1 0 1 0 1 1 0 1).
8 4 2 1 8 4 2 1
= = = = = = = =
1 0 1 0 1 1 0 1
10 13 = "A D" in base 16
13) Convert the 19 (base 10) to base 8.
16 8 4 2 1
== = = = =
1 0 0 1 1
Is 19 in base 10.
Grouping by 3's we get...
4 2 1 4 2 1
= = = = = =
0 1 0 0 1 1
2 3 = "23" in base 8
14) Convert the 19 (base 10) to base 16.
16 8 4 2 1
== = = = =
1 0 0 1 1
Is 19 in base 10.
Grouping by 4's we get...
8 4 2 1 8 4 2 1
= = = = = = = =
0 0 0 1 0 0 1 1
1 3 = "1 3" in base 16
15. What kind of logic gate is represented by this symbol?
an AND gate.
Complete the truth table for the above logic gate:
A | B | C
========
1 | 1 | 1
1 | 0 | 0
0 | 1 | 0
0 | 0 | 0
16. What kind of logic gate is represented by this symbol?
an OR gate.
Complete the truth table for the above logic gate:
A | B | C
========
1 | 1 | 1
1 | 0 | 1
0 | 1 | 1
0 | 0 | 0
17. What kind of logic gate is represented by this symbol?
an NAND gate.
Complete the truth table for the above logic gate:
A | B | C
========
1 | 1 | 0
1 | 0 | 1
0 | 1 | 1
0 | 0 | 1
18. What kind of logic gate is represented by this symbol?
an NOR gate.
Complete the truth table for the above logic gate:
A | B | C
========
1 | 1 | 0
1 | 0 | 0
0 | 1 | 0
0 | 0 | 1
19. What kind of logic gate is represented by this symbol?
an XOR gate.
Complete the truth table for the above logic gate:
A | B | C
========
1 | 1 | 0
1 | 0 | 1
0 | 1 | 1
0 | 0 | 0
20. What kind of logic gate is represented by this symbol?
an NOT gate, also called an inverter.
Complete the truth table for the above logic gate:
A | C
========
1 | 0
0 | 1
21. Perform an AND operation on these two number:
1 0 1 1 0 1 0 1
0 0 0 1 1 0 0 0
================
0 0 0 1 0 0 0 0
22. Perform an OR operation on these two number:
1 0 1 1 0 1 0 1
0 0 0 1 1 0 0 0
================
1 0 1 1 1 1 0 1