Straight Through & Cross Over

28th April 2012, We were given our second activity which involved with making RJ45 (Twisted Pair) cable into Straight Through and Cross Over cable.

Twisted pair is A type of cable that consists of two independently insulated wires twisted around one another. The use of two wires twisted together helps to reduce crosstalk and electromagnetic induction. While twisted-pair cable is used by older telephone networks and is the least expensive type of local-area network (LAN) cable, most networks contain some twisted-pair cabling at some point along the network.

RJ45

The clip for RJ45 wires

Cut the end of the wire with long nose pliers

CROSS-OVER COLOR CODING

STRAIGHT CROSS COLOR CODING

After we finish with rearrange the color, we need to connect the wires with the clip.

World War 1 Technology

Big Bertha

The Big Bertha was a German initiative put into action before and during the First World War, where artillery started becoming more mobile than in previous wars. the name itself "Big Bertha" is usually associated with many World War 1 large caliber guns.

The female name "Bertha" comes from the descendant of Krupp steel which an arms manufacturer. The Big Bertha could lob 2,200lb shells over 9 miles. The Big Bertha took a crew of 200 men over six hours to assemble and disassemble the weapon.

Its most notable action was against a series of undefeatable Belgium forts. the Big Bertha's lay waste to the forts, demoralizing the allied forces and convincing the Germans to continue exploration into more mobile and more powerful howitzers which included the "Paris Gun where though highly inaccurate which the mighty howitzer that terrorized Parisians from over 70 miles away showing French countrymen that their country was not safe from the war.

This was so effective, the Big Bertha fire killed hundreds and thousands of men. It also blew the ground, which made hiding much more difficult.

Technical Data

•     Caliber: 420mm (16.5 in)
•     Range: 12.5Km (7.7 miles)
•     Projectile Weight: 1763 lbs
•     Muzzle Velocity: 400 meters/second
•     Length: 6.72 meters
•     Crew: 285 men
•     Fire speed: 8 rounds per hour 

 This is the Big Bertha shell:

PC tools

This is the PC tools that we use in our CLASS ACTIVITIES which we borrowed it from the college.

PC TOOLS

Below is the name of each tools.

Extra Screw
Uses: Provided extra screw for PC

Long nose pliers
Uses: To pull out the wires

adjustable spanner
Uses: To Fasten/detach nuts or bolts

Tweezer
Uses: To extract any small items

Chip Inserted
Uses: Insert chip into the Motherboard with its flat surface

Tweezer
Uses: To extract any small items

Pick Up tools

Uses: To extract any small items

Tweezer
Uses: To extract any small items

Wire Cutter
Uses: To cut wires

Soldering iron
Uses: For soldering reel or any CPU parts required

 Flat Head Screwdriver
 

Socket Screwdriver

Phillip Screwdriver

Our Third HT Assignment

Assignment 3

 Here, We been given our third assignment. On this assignment assignment, we were required to do 2 task. Our first task is we need to do a CLASS ACTIVITIES which given by our instructor, Sir Ahmad Muzhaffar. For this Class activities, we were required to work as a group to assembling and disassembling of CPU. This Class Activities was held on 14th April 2012. As you know, I from One Brunei group along with Akmal Hafizh, Sarinah and Fiona.

Class Activities- Assembling and Disassembling the CPU component 

Each group can choose only one CPU

Front VIew

Back View

We using PC tools to assembling and disassembling all the component in the CPU. The PC tools was provided by college. I will explain the uses of each tools in next post.

PC tools

First, we open the CPU case by removing all the screw that attach in the CPU case with provided tools. We open the CPU on the table so that make our work more easier by remove all the component inside the CPU except Motherboard and Power supply.

View from inside the CPU

Before we take out the component, make sure you take picture all the component inside the CPU so that it we wont forget where to connect the component. Because it will make you confuse just looking at cable. After that we remove the 5 component inside the CPU.

 Here is the component that we already take out from the CPU.

Floppy Disk Drive

CD Drive

Harddisk

Heat Sink

CPU Fan

 Next, after all the component been take out, we need to assembling back the component into the CPU.

 

Finally, after we assembling all the component in right order, we need to check either it work or not.