Download Gray Code Research Task

Gray Code Research Task
This lesson you will be working on your independent learning and research skills.
You need to answer the following questions, stating the URL(s) of the sites where you found your
information for each question.
You have 30 minutes to complete this task!
Exercise: Gray Code
Explain how Gray Code works:
Explain why we might want to use Gray Code.
What piece of hardware found in a PC uses Gray code?
Complete the following sequence of Gray Code states:
0 = 000
1 = 001
2 = ...
3 = ...
4 = ...
5 = 111
6 = 101
7 = 100
Task 2 – Programming!
Copy the following code in to a new vb.net console program:
Module Module1
Your first task is to annotate the
code to explain what is happening.
Sub Main()
Dim binaryarray(3) As Integer
Dim i As Integer
Dim answer As Integer
Dim binarystring As String
Then edit the code to work with 8bit binary numbers, instead of 4 bit
binary numbers.
answer = 0
binarystring = ""
For i = 1 To 4
Console.WriteLine("Enter binary number - digit " & i)
binaryarray(4 - i) = Console.ReadLine
Next
For i = 0 To 3
If binaryarray(i) = 1 Then
answer = answer + 2 ^ i
End If
Next
For i = 0 To 3
binarystring = binarystring & binaryarray(3 - i)
Next
Console.WriteLine(binarystring & " in base 2 is " & answer & " in base 10")
Console.ReadLine()
End Sub
End Module