1. Today’s Agenda 1.Answer questions on Research Paper –Rough draft due Wed Feb. 13 –Final version due Wed, Feb. 20 2.Attendance 3.Hands-on Binary Numbers 4.Hands-on Computer Representations 5.Guest Speaker – Cara Giancola, Pacific Northwest National Laboratory – Hebeler 121

2. Explore the Possibilities CS 112: Foundations of Computer Science

3. 10100101011000111 01011001010110001 1001001010110001 1101111010110001 11001010111011001 10101001010110001

4. Finger Counting

5. B inary Dig it s

6. alpha bit

7. ASCII BinaryCharacter 100 0001A 100 0010B 100 0011C 100 0100D 100 0101E 100 0110F 100 0111G 100 1000H 100 1001I 100 1010J 100 1000 100 1001 100 0100 100 0001 100 0100 101 1001

8. ASCII BinaryCharacter 100 0001A 100 0010B 100 0011C 100 0100D 100 0101E 100 0110F 100 0111G 100 1000H 100 1001I 100 1010J 0100 1000 1100 1001 0100 0100 0001 0100 0101 1001

9. Picture Elements ( Pixels )

10. 4, 11 4, 9, 2, 1 4, 11 4, 9 5, 7 0, 17 1, 15 Compression