C# Class 1/25/10

We continue talking about the array. Instead of holding values in a database, we stored them in an array. Our array had seven elements. So referencing will be 0, 1, 2, 3, 4, 5, and 6. So to display that data being held in the array, I had to reference it location. Here is the code.



private void button1_Click(object sender, EventArgs e)
{
string[] value2 = new string[7];
int[] value3= new int[2];
int zip;
//int ph;
value2[0] = textBox1.Text; //fname
value2[1] = textBox2.Text; //lname
value2[2] = textBox3.Text; //address
value2[3] = textBox4.Text; //city
value2[4] = textBox5.Text; //state
value2[5] = textBox7.Text; //phone

zip = Convert.ToInt32(textBox6.Text); //zip

value3[0] = zip; //equal textbox6.text

label15.Text = value2[0];// fname
label16.Text = value2[1];// lname
label17.Text = value2[2];// address
label18.Text = value2[3];// city
label19.Text = value2[4];// state
label20.Text = Convert.ToString(value3[0]);// zip
label21.Text = value2[5];//phone
}

private void Form1_Load(object sender, EventArgs e)
{

}

private void button3_Click(object sender, EventArgs e)
{
textBox1.Text = ""; //fname
textBox2.Text = ""; //lname
textBox3.Text = ""; //address
textBox4.Text = ""; //city
textBox5.Text = ""; //state
textBox6.Text = ""; //zip
textBox7.Text = ""; //phone

label15.Text = ""; //fname
label16.Text = ""; //lname
label17.Text = ""; //address
label18.Text = ""; //city
label19.Text = ""; //state
label20.Text = ""; //zip
label21.Text = ""; //phone
}

private void button2_Click(object sender, EventArgs e)
{
this.Close();
}

A+ Class 1/21/2010 EXPANSION SLOTS

Today in class, we picked up our discussion from last Tuesday. Today's topic: expansion slots. Our discussion was about the five different types of expansion slots listed below.

PCI - is a computer bus for attaching hardware devices in a computer.

Accelerated Graphics Port (AGP) - is a high-speed point-to-point channel for attaching a video card to a computer’s motherboard's, primarily to assist in the acceleration of 3D computer graphics.

PCI Express (Peripheral Component Interconnect Express) (PCIe) - is a computer expansion card standard designed to replace the older PCI, PCI-X and AGP standards.

AMR (Audio/Modem Riser) - specification defines a hardware scalable OEM PC mother board riser card and interface, which supports both audio and modem functions. An MR slot will provide a Modem function, while an AMR slot will provide both an Audio and Modem function. The modem is a WinModem.

CNR (Communication and Networking Riser) - The Specification defines a hardware scalable Original Equipment Manufacturer (OEM) mother board riser and interface that supports the audio, modem, and local area network (LAN) interfaces of core logic chipsets.

Please note that Intel has two chipset and they the North Bridge and the South Bridge. The surprise of the day came when he took out some computers and had us in the class to dissemble the different components off the motherboard. Then remove the motherboard and re-install everything in its proper order.

Now I know how Dr. Frankenstein felt. “It’s Alive”!!!!

Net+ Class 1/20/2010 OSI Model

Today in class, we discuss in more details about the OSI model. What is happening at each of the seven layers? We also talked about de-capsulation and encapsulation.





The instructor had a surprise for the class after our discussion. He had us to breakdown into two groups of threes so that we could build a P2P network. This is a peer-to-peer network. They had to share resources between them. We use two computers and a switch. We were also given two Ethernet cables to connect them.

Once they were connected together, I ping them to see if they was able to communicate with one another. We had to give each unit an IP address manually and a subnet address. Then we had to bring up the wizard to create a connection. Last, we designated one of the computers as a master to allow file sharing.

NET+ Week #2 -- LAN

C# What is UML and how is it used?

It is a graphical language that allows people who design object-oriental software system to use an industry-standard notation to represent them.

Otherwise you can say that it is graphical shorthand to explain what the programmer’s objective of the purpose of the program that they are coding. This concept would be employed doing the Design stage.

A+ Class 1/19/10 COMPUTER COMPONENTS

Today, (Stardate 20100119) we started on the talk about the backbone of the class. The Computer! What is a COMPUTER and what COMPONENTS are in it? We started with the motherboard.

1. Three different names
o Motherboard
o system board
o planar board)

2. Two different types
o Nonintegrated
o Integrated

3. The four different Form Factors
o Advance Technology Extended (ATX)
o Micro ATX or Mu ATX
o New Low-Profile Extended (NLX)
o Balanced Technology Extended (BTX)

4. Bus Architecture
o It is a subsystem that transfers data between computer components inside a
computer or between computers (WAN).

5. Motherboard Components
o Chipset
o Expansion slots and buses
o Memory slots and external caches
o CPU/Processor slots in sockets
o Power connector
o Onboard disk drive connector
o Keyboard connector
 Keyboard = purple
 Mouse = green
o Peripheral ports and connectors
o BIOS
o CMOS battery
o Jumpers and Dip switches

6. Two major function group of the chipset
o Northbridge
o Southbridge

It was starting to get real fun then, class was over. We ran out of time. Until next time people, “Same Bat-time, Same Bat-channel”.

A+ Changing the Setting for Multiple Monitors

1). Right-click a blank portion of the Desktop.
2). Click Personalize.
3). Click the Display Setting link.
4). Click on the picture of the monitor with the number 2 on it.










5). Check the Extend The Desktop Onto This Monitor box.



6). Click and Drag the second monitor to the desired virtual position around the primary monitor.


7). While the second monitor is still selected, chang it refresh rate and resolution, if necessary, as outlined in the previous section.