1. Computer Tech Math The “Numbers” Overview Mr. Orioli 9/20/2010

2. Number Conversions The Decimal System Binary Hexadecimal

3. The Decimal System Powers of “Ten” 0,1,2,3,4,5,6,7,8,9 152

4. Binary Powers of “Two” 0, 1 0110

5. Hexadecimal Powers of “Sixteen” 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F 1B

6. Measurement Data Prefix Conversion Data Transfer Rates Downloading Rates

7. Converting Data Prefixes: 13.2 MB = _________ KB 153 Kb = __________Mb

8. Data Transfer Rates 15 Mb/s = _______ Kb/s.145 Gb/s = _______ Mb/s

9. Downloading Rates: File size / Downloading rate: 12MB file / 15KB/s 12MB /.015MB/s = 800 s 800s / 60 s/m = 13. 33 min 13 min 20 seconds

10. ISP cost comparison  Monthly cash flow analysis  Cost/MPS  Speedtest.com (exploration)  Consultant reports  Communicating your ideas

11. IP Addressing and Subnetting  Address Classification  Network & Host Identification  Network Addresses  Default Subnet Masks  Subnetting, Custom Subnetting

12. Other Topics  Class projects Design an internet configuration for a new building Suggest enhancements to improve an existing configuration  Games to build skills The Binary Game Subnetting Game