Quiz TWO and Final Exam Study Guide - 810:023 - 04/03/2010

1. BINARY: Converting from decimal base ten to binary base two. Converting from binary to decimal. Show your work. No calculators allowed.

   Files: bin023.txt and binaryConvert080.txt and binary.txt are resources to look at.

2. Moore's Law and the history of computers. Honey, I shrunk the transistors. The four generations of computers were each characterized by a certain electronic component, such as vacuum tubes for the 1st generation, transistors for the 2nd generation, integrated circuits for the 3rd generation, and microprocessors for the 4th generation.
3. Computer history and E F E R A and folding sheets of paper in half - review of week one. The four octets of IP addresses - w.x.y.z and class A, B and C networks. Konrad Zuse and Helmet Schreyer, The ABC computer - John Vincent Atanasoff and Clifford Berry and Iowa State College, the ENIAC computer and Mauchly and Eckert.
4. Video tutorial: Playing an external sound file in Flash - ActionScript 3.0 pattern and the four simple statements that are needed.
5. Video tutorial: Audio, animation using Classic Tweens, creating and using BUTTONS in Flash. Learn shortcuts too. F6, F8, Control-K, Control-L, Alpha property, KF Keyframes. UP, OVER, DOWN, HIT - see also the invisibleButtonSymbol JPG file screen snapshot from http://www.uni.edu/jacobson/023/fla/snow/snow023.html February 10th lab.
6. Hamming codewords for error detection and correction. Practice, practice, practice and use your knowledge of parity and of binary.

   Hamming codeword Flash application is a very useful tool and illustration of how to create a hamming codeword to send out on the network.

7. The basic components of a computer.

              Central        Main        Auxilary    Input     Output
              Processing     Memory      Memory      Device    Device
              Unit           Mp          Ms
                |              |           |           |         |
                V              V           V           V         V
              ----------------------------------------------------------
                              Bus
              ----------------------------------------------------------  
  

8. Understand ports and the UDP, TCP, IP packet formats as far as where IP address goes, and the port numbers. 22 = ssh and 80 = web server port is enough.
9. P D N T S P A = Please Do Not Throw Sausage Pizza Away - 7 layers OSI model...

   OSI 7 layer model
    
    Application
    Presentation
    Session
    Transport     port numbers such as port 80, port 22, and port 2345
    Network       32 bit IP address
    Data Link     48 bit NIC/NAC/MAC address
    Physical
   
         arp protocol - given as input an IP address, find the MAC address
                        for the machine with that IP number.
   
   For two machines on a given network to communicate, they must know the 
      other machine's physical (or MAC) addresses. By broadcasting Address 
      Resolution Protocols (ARPs), a host can dynamically
      discover the MAC-layer address corresponding to a particular IP 
      network-layer address.
   
      Note:  Mac address is the NIC or NAC address.
   
             MAC = Media Access Control, also is 
                                the name of a sublayer of the Data Link Layer
   
             NIC = Network Interface Card
             NAC = Network Adapter Card
   
   
   Ethernet adapter Local Area Connection 2:
   
    Description . . . . : Marvell Yukon 88E8057 PCI-E Gigabit Ethernet Controller
    Physical Address . : 00-1D-72-C1-F2-9A
   
   
    Physical Address . : 00-1D-72-C1-F2-9A
                         -- -- -- -- -- --
                          1  2  3  4  5  6  = 6 bytes = 48 bits MAC 
                                                             or NIC 
                                                             or NAC address.
   
   Ethernet adapter Local Area Connection 2:
   
      Connection-specific DNS Suffix  . : mshome.net
      Link-local IPv6 Address . . . . . : fe80::8be:9346:5b36:42d3%12
      IPv4 Address. . . . . . . . . . . : 134.161.128.33
      Subnet Mask . . . . . . . . . . . : 255.255.128.0
      Default Gateway . . . . . . . . . : 134.161.128.1
   
      ARP would currently resolve my laptop computer's IP address 
   
                  134.161.128.33   to    00-1D-72-C1-F2-9A
          i.e. 
                  ARP(134.161.128.33) -----> 00-1D-72-C1-F2-9A
   
                     on the local area network here in Wright Hall today.