C# Class - Week 7 - Control Statement

C# Class - Week 5 - Classes, Objects, and Methods.

C# Class - Week 4 - SOA

Net+ Week 4 Subnetting powerpoint

NET+ Subnetting

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Net+ Class 02/10/10 Quiz

Today we had a suprise quiz over the OSI model and cabling.

C# Class 02/10/10 Review

We are continuing our discussion on var, list, arrays. These are found in both chapter 8 and 9 of out textbook.

C# Class 02/08/10 Review

A+ Class 02/09/10 Operating Systems

NET+ Week 3 Networking Cables

A+ Class Week 3 Assignment - Memory

NET+ Class 02/03/10 SUBNETTING

Subnetting 101

Object:

• What is subnetting
• Benefits of subnetting
• IP address
• Default Subnet Mask
• Subnet formula

IP

• 32 bits
• has Host bits
• has Network bits

*******EXAMPLE********

IP = 192.168.1.1

Subnet Mask = 255.255.255.0

Class = C

n-bits (network) vs. h-bits (host)

• nnnnnnnn.nnnnnnnn.nnnnnnnn.hhhhhhhh = 32 bits
• nnnnnnnn = 1 octet

CLASS BEGIN RANGE END RANGE

A 0 126

B 128 191

C 192 223

D 224 239 (multasking)

E 240 255 (Science & Research)

LOOPBACK 127 =127.0.0.1

Subnet Formula

Network = 2 * n power (n = number of network bits)

Host = 2 * h power -2 (h = number of host bits)

C# Class 02/03/10 LINQ Continue

Today's assignment was a quiz to write a program that would take information for NBA.COM and arrange it to query for the top twenty player in the league that was in scoring, rebounding, steals and turnovers.

To do assignment, I will require four database to hold each of the respected information.

A+ Class 2/02/10 KEYBOARD AND MORE

Pages covered in todays class is 26 -32.

Subject:

• keyboard connectors
• peripheral ports and connectors
• motherboards
• BIOS and POST
• CMOS and CMOS Battery

Keyboard

• 5 pins DIN
• AT Connector
• PS/2 (6 pins)
• color code is purple

*********************NOTE************************

The most popular connector today for a keyboard is the PS/2, but it is quickly being replace by USB connections.

7 most common type of port on a computer are

• Serial
• Parallel
• USB (Universal Serial Bus)
• Video (channel 3)
• Ethernet
• Sound In/Out
• Game port

1. DA-15F
2. 15 pin female D-subminiature (D-sub)

Motherboard

• header
• peripheral port (direct-solder method)

BIOS and POST

• BIOS: Basic Input/Output System (ROM BIOS Chip)
• contain system software that boots the system and allows the OS to interact with certain hardware in the computer in lieu of requiring a device driver to do so.
• POST: Power -On Self Test ( a series of system check performed by system BIOS and other components, such as the SCSI BIOS and the Video BIOS.

CMOS and CMOS Battery

• date
• time hard drive configuration
• memory
• integrated ports
• boot sequences
• power management

C# Class 02/01/10 LINQ

Todays class covered the following information.

LINQ - Chapter 9 page 405.

LINQ: Language Integrated Query

Used for: to query arrays and Lists, Databases, variable.

Concept:

• pre-package data structures apart of .NET Framework


• reusable


• reliable


• known as list

What do a list

• element are dynamic, increase in size at execution to accommodate additional element

Syntax

• built into C#


• libarays are known as providers

LINQ

• declarative programming


• specifies not the steps necessary to get the result, but rather the conditions that selected element must satify

Example

NET+ WEEK 2 Hubs, Routers and More