What is a MotherBoard

A Motherboard or Main board is a major and the most important part of a computer it is Printed Circuit Board  PCB which holds many of the crucial components of the system.Cpu, Ram, Video Card, NIC, Hard Drive, DVD Rom etc. is connected to the motherboard. A motherboard provides the electrical connections by which the other components of the system communicate. Unlike a backplane, it also connects the central processing unit and hosts other subsystems and devices.

Here is close look of a motherboard

MotherBoards are Aviable in different forms and Sizes but every board is different then other and every form has it on case for example you can fit BTX MotherBoard into a ATX case because BTX is large in size.

Form Factor

Form factor is great way of describing a motherboard’s size and shape, impoertan because it involves industry-wide standards and ties with the computer case and power supply unit PSU.The most common motherboard is ATX(Advanced Technology eXtended).

Motherboard Sizes

ATX             = 305mm X 244mm

MiniATX   = 284mm X 208mm

MicroATX =  244mm X 244mm

FlexATX    =  229mm X 191mm

Balanced Technology eXtended

BTX             =  265mm X 325mm

MicroBTX  = 267mm = 263mm

PicoBTX     = 267mm X 203mm

Here is close look of a ATX motherboard

And here is a close look of a BTX moterboard

Thats it i hope you have learn the basic  information about motherboard.

How to install Autocad 2012

AutoCAD was one of the first Computer Aided Design programs to be made available on personal computers. It is built to help people design buildings, products, or public spaces, without having to draw up plans by hand. It was released in 1982 by Autodesk, Inc., and offered a personal solution to software that was before then released only for larger workstations. While CAD programs prior to AutoCAD required massive amounts of computing power in the form of gigantic computers, AutoCAD streamlined its operating and optimized it for the IBM PC, allowing people to work from home or on their own work computers. AutoCAD is easy to use Software design for engineers & designer for designing a product AutoCAD save its file in Dwg format which means drawing, this format is supported by many cad Software, you can download the latest version  of AutoCAD from Autodesk right Know the latest version is AutoCAD 2012 you can download the 30 days trial version or you can buy the Software i recommend that you just download the trial version right know if you like the Software and found this Software very useful then you can buy it.

How to Download and install AutoCAD

To Download AutoCAD fallow the following Steps.

  • Visit the Autodesk Website.
  • Create an account if you have already made an account just login.
  • Go to the product Section and click AutoCAD or you can search AutoCAD in the search bar.
  • Then click on download if you want to buy the Software you can click the buy Button.
  • After click on the download button you would see a download box click on save to download the software on to your Computer Memory.
  • It will take some time depending on the speed of your internet Speed.
  • After the Software has downloaded locate the AutoCAD setup file and double click on it.
  • Soon you would be promoted with AutoCAD installation setup when the setup has done loaded the necessary installation files.
  • Click on install.
  • Choose your region and accept the license agreement and click next.
  • Choose your license type and product information in this case i am choosing standalone license type and the software will be 30 days trial.

  •  After that browse your desire location or leave it to default and click install to install the Software on to the Computer memory.it will take 10 or 15 minutes to install, till then grab yourself a nice sandwich or potato chip.
  • When the software has install click cancel to close the setup box.
  • Click on the AutoCAD icon on the desktop or you can open the software from Start menu>programs>Autodesk>autocad2012>autocad.exe
  • After this AutoCAD would start to load the necessary files after few seconds you will be promoted to the AutoCAD interface.

Getting knowing the AutoCAD interface

AutoCAD 2012 is a very user friendly Software, and its interface is very neat and polished.

The tools in AutoCAD are located in the ribbon and are divided into tabs and each tab is dived in to panels and some tools are located in the fly out. you can see the image of the ribbon below.

To be continued

How you make your first video game in Unity3d

The unity 3d game engine allows you to make games for iPhone, mac and pc

etc.A user can download.The good news is that the basic version is free. A user can Download fully functional version of  Unity3d for nono-commerical use for free from unity3d.com.

Once you download and install it run the Software, after execution It opens up angry robot demo by defults.

You need to download all resource files from unity web site. You can download first person shooter game source file from this link file name is FPS_Tutorial.zip.

Starting with very basic step i.e. Terrain

Terrain is the ground, filed, land, soil. So Terrain is the place or platform where you make a game.

Create a Terrain

Open up unity3d game engine and go on file tab and click on a new scene .after that go to the Terrain tab and click on the create terrain it simple and easy . If your terrain is too big you can set its size by Clicking on Terrain tab go to set Resolution.Now your terrain is ready as you want.

Add a light

Add a light on a terrain is so easy. Just open the Game object tab than go to create other and simply Select the light style from here and adjust it at any point where you want by moving through the vector Arrows red, green and blue on the light. You can also increase and decrease the intensity of light through inspector Colum which can be visible near the Hierarchy and project Colum. The Inspector displays detailed information about your currently selected Game Object.

Add a texture of the land

Selecting the terrain from the Hierarchy Colum.

Than go to the inspector Colum which displays detailed information about your currently selected terrain .From here you pick the paint terrain texture button

Then click on the edit texture

A new window is open click on the dropdown (picture) and selects the texture for the terrain.

Add trees in a Terrain

To add trees in a terrain first select the terrain from Hierarchy Colum after that go to inspector Colum

And pick the place tree button than go to click the edit texture button at here a new box is open i.e. add tree. In this box select the (bend factor = 1) and click on the dropdown button and select the tree. You can also change the brush size, tree density, tree width, tree height from inspector Colum.

functional of Unity 3d for non-commerical use for free. Once you download and install it. It opens up with basic island demo.

You need to download all resource files from unity web site. You can download FPS_Tutorial.zip.

And all other packages which you need to make a game.

Starting with very basic step i.e. Terrain

Terrain is the ground, filed, land, soil. So Terrain is the place or platform where you make a game.

Create a Terrain

Open up unity3d game engine and go on file tab and click on a new scene .after that go to the Terrain tab and click on the create terrain it simple and easy . If your terrain is too big you can set its size by Clicking on Terrain tab go to set Resolution.Now your terrain is ready as you want.

Add a light

Add a light on a terrain is so easy. Just open the Game object tab than go to create other and simply Select the light style from here and adjust it at any point where you want by moving through the vector Arrows red, green and blue on the light. You can also increase and decrease the intensity of light through inspector Colum which can be visible near the Hierarchy and project Colum. The Inspector displays detailed information about your currently selected Game Object.

Add a texture of the land

Selecting the terrain from the Hierarchy Colum

Than go to the inspector Colum which displays detailed information about your currently selected terrain .From here you pick the paint terrain texture button

Then click on the edit texture

A new window is open click on the dropdown and selects the texture for the terrain.

Add trees in a Terrain

To add trees in a terrain first select the terrain from Hierarchy Colum after that go to inspector Colum

And pick the place tree button than go to click the edit texture button at here a new box is open i.e. add tree. In this box select the (bend factor = 1) and click on the dropdown button and select the tree. You can also change the brush size, tree density, tree width, tree height from inspector Colum.

Add Mountains

To add Mountains in a terrain first select the terrain from Hierarchy Colum after that go to inspector Colum and pick the Rise/lower terrain after that pick the brush size and  put the mouse on the scene

Press and hold the left mouse button and move the mouse up and down and see the results. If you need any change just press and hold the left mouse button with shift key.


Add sky box

To add sky box first go to the Assets tab than  go to import package and select the sky boxes. If you have already the sky boxes in your project Colum than skip from this step.

After importing the package go to Hierarchy and select the main camera than go to the component tab

Go to the sub link i.e. rendering from here select the skybox as the component of main camera

Adding the first person controller

To add the first person controller in the game view .just go in project Colum or panel and use the search button and type the first controller this bring you the first person controller prefab. We explain you about prefab in detail later on. The first person controller is given to us by unity to make game quickly and easily.  You just simply drag first person controller prefab into the scene view.

Adding the weapon

To add the weapon to first person shooter first we go to the project panel and go to the object folder

And open the weapons folder and select the Gun as a weapon and drag it into the scene view. After that

Go to the Hierarchy panel click on to the Gun and drag it into the main camera as child object of main camera the reason  is if the Gun is the child object of main camera it will follow the player all time.

 

How to use my MySQL Server”Basics”

MySQL is a database to store the user information MySQL is free and Opensource  it is very easy to use,SQl stand for “structure query language.”

What is Database ?

This is one of the hardest topic to define but i will enplane you as easy as possible lets go, imagine an excel sheet on your mind then divide them into rows and columns and give the row a name like a,b,c,d and give the columns 1,2,3,4 then i want you to store “apple” in a1 if you did it then when you need a apple you would go to a1. this is like an array where the data is stores in specific memory and then pointing that memory to access that data.if you understand this then you know what is a database, a database is used to store large amount of data then application or web pages  use that database to access that data,a user can store there picture,music in a database a user can also password protect the data in a database.

How to install Mysql ?

To install MySQL Server on a windows here is the process you can choose your platform.

  • Download MySQL by visiting here .
  • Download the MySQL windows installer.
  • after Downloading install it on the computer.
  • Locate the directory where MySQL is installed and open it up.

after the above process it would open a console window ,type in password if you have entered any  in the installation process.so lets get started to use MySQL first enter the “help” command basically it will print the list of MySQL commands. To see the Databases enter this command “show databases;”   remember to put semi-colon at the end of the command or statement because it means the command or statement has ended.after typing this command you will see some databases that are created to use these databases we will use the “use” command and the name of the database(e.g. use test).to see tables inside the database we will use the “show tables;” remember we are using the test database, To see which database are you using use the “status;” command to see the current status of the database.under the current database you can see your current database that you are using.this command also shows which database server are you using which TCP port are you using and many more things.to create a database we will use “create database” command and the name of the database (e.g.”create database hello;”) this will create a hello database to see your database type the “show databases” command,To delete a database we will use the “drop database” command and the name of the database(e.g.”drop database hello“)this will completely remove every thing of the database that you have chosen remember to use this command with caution.to use our database that we have created we will then again use the “use” command.Let’s create a Table if you don’t know what is a table you can think of this way think a folder is a database and the files inside that folder are tables,to create a table we will use the ‘create’ command,(e.g.”create table infor (name varchar(25), address varchar(100), age int, pnumber varchar(12));”)so it will create a fields named info and inside that it will create varchar(variable character) which is 25 character long and it will create another varchar which is 100 character long then  int(integer) age and then varchar which is 12 character long.to see your tables that you have created type the “show tables” command it will the show your tables.if you want to see the content of  the infor table use the “describe” command and the name of the table(e.g.”describe infor;”)to erase a table we will use the “drop” command and the name of the table(e.g.”drop table infor”).to insert something in to a table for example our name, address etc.. we will use the “insert into” command and the name of the table.(e.g.”insert into infor values (“sik”, ” fake address”, 14, “5555-555-103”); “) remember string would be in quotes.after that we will select every thing using the “select * from” command and the name of the table(e.g.”select * from infor“) it will basically select every thing from infor table that is inside the “hello” database.if you want to see only address not the name and any other fields the we will use “select”command name of the field and the table name (e.g.”select address from infor”)it will echo the address that is stored in infor.to delete something from the table we will use the “delete from” command and table name then we will type “where” and the name of the field which is equal to content in the field.(e.g.”delete from infro where address=” fake address”).then enter this command “select * from infor” to see if the fake address has deleted or not.

End of MySQL Basics.

Storage Devices

In this topic we will discuss about Storage Devices and backup media which are as fallows

– HDD (hard Drive Disk)

  • Solid-State Disk
  • Magnetic Disk

-FDD (floppy Drive disk)

Optical Drives

  • CD
  • DVD
  • RW
  • blu-Ray

-Removable Stroage

  • Flash Drives(SD CARD, thumb drives, USB, Flash)
  • External CD-RW and hard-drive
  • Tape Drive
  • HOT & Non- Hot Swappable devices.

FDD (floppy Drive Disk)

in these days FDD does not use to much and they are very hard to fine Fdd comes in many different sizes and Memory the most popular is the 1.44 Megabytes (MB) an a 3.5 (90mm) disk.

some Computer have built in Floppy drive but some Computer dose not if you have floppy and you need to connect it with a modern Computer that dose not have a floppy drive then you will probably need a USB  floppy drive .in  floppy drive you can save data that are 1.44  MB in memory floppy drive contain magnetic disk to store data know a days people flash dive to store data in Gigabyte’s that why floppy drive are not use to much .

—————————————————————————————–

What is HDD ?

HDD (Hard-drive disk)

hard drive are used to store  an write data they are connected to mother Board or Main board operating System and programs are stored inside the hard drive they are 3 types of hard drive SATA & ATA, PATA, Scuzzy Drive  or SCSI Drive.

SATA (Serial Advanced Technology Attachment) & ATA

Modern computer use ATA drive to store large amount of data.

PATA or IDE Drive

PATA or IDE drive are old and not use to much in computer.

SCSI (Small Computer System interface)

SCSI drives offer faster data transfer speeds than it competitors ATA and IDE. Although ATA and IDE are common for desktop users, these drives do not offer as many features as SCSI which can foster the connection of multiple interfaces.

How Hard Drive Works ?

Hard drive is made of metal and it is very strong hard drive are tightly pack so no dust particles can get it hard drive contain a “platter” in which the data is stored this platter is a magnetic disk,data written and read by”head”,the “arm” move the head back and forth to write the data or read in the “platter”, the platter is move by “spindle” ,An “Actuator” is responsible for the move meant of the arm.So the spindle is spinning the platter and the actuator is reading  and writing  binary’s in the platter.Data are arrange in track in a platter,there are many track on a platter and track contain sectors a sector contain 512 byte’s of information there are million of sectors on a  platter, and those sectors make up the cluster.

SSD or Solid State Disk.

Solid state Disk is modern technology of storing data it is very fast and last longest then any other storing devices, a Solid State Disk contain Flash chips to store data,but hard drive use platter to store data solid state is much expensive the hard drive.

A hard Drive needs to know where to start the system it uses master boot record or MBR it is the first sector of the hard drive, in that tiny little sector boot signature and booting info stored it also contain info for your operating system for where to boot from,if your operating system does’t boot up then there is a problem in the MBR this problem can be fix by rewriting the MBR.

Optical Drives

CD or Compact disk are use to store data and to share it with others it is circular disk a cd has a storing capacity of 700mb.

DVD or Digital Versatile Disk  are used in the same way as CD but it can store a large amount of data as compare to cd. A dvd has a storing capacity of 4.4 Gb for Single layer and 8.5 Gb for dual layer.

Blu-ray Disk are used for sharing data but it has a lot of storage capacity a single layer blu-ray Disk has a storing capacity of 25 Gb and dual layer has a storing capacity of 50 Gb.it is expensive then the other disk as it can store a large amount of data.

Removable Storage 

Removable Storage are very useful for storing data,we can store data in Flash Drive or Memory stick and can plug and remove from the system and can plug into another system.

SD CARD

SD card are very small in size and can store large amount of data they are commonly used in cell phones, cameras,audio devices etc SD card comes in many different shapes and also with different storage capacity.

External Hard-drive

External hard drive are very useful if you need to transfer data from one computer to another. External hard drive have a usb port and a power connection but there are also external hard drive multi adapter where a user can connect ide or sata into that adapter and then connect’s the hard drive or Disk Drive then plug-in a usb cable in to a computer it is very useful if you have a laptop.

Multi External Drive Adapter

Tape Drive

Tape Drive are very use full if you have large scale of data it commonly used in industry or company to store a huge amount of data a user can use a tape drive to copy or backup all the data of all the computer or server automatically at night so if something happens then user can recover that data it also store data in a encryption so other people can’t access the data,a tape drive contain a magnetic tape where the data is stored it can contain up to 16 ,32 or more tape disk so users’s can save a lot of data.

End of Storage Chapter

How to Create a Free Website in 5 minutes.

Well you are probably wondering how would you make website in 5 minutes, if you fallow the steps you would have your own website in 5 min for free.

first we will get a domain name a domain name is the name of the website(e.g WWW.example.com)

to get a free domain visit com.nu and click on signup to create an account enter your personal information and click register know after that you are promoted with an email verification after verifying your account you can login in to your account, at the left side of the web page click on new project to set up your domain name; You will see 2 option Create redirect, Web space in this case click on web space so we can store our web pages in it, give the project a name and a description and choose your desire categories and hit Next then you will see a box that says enter a domain name give your desire name (http://www.chaosbit.eu.gp)  and hit next after few seconds your domain would be set up.

at bottom of  the web page you can see the ftp information if you don’t know what is a ftp it is file transfer protocol which is used to transfer file from the server to client. we would use an online ftp

client to send our webpages visit ftplive and copy your ftp information and paste it in to the text boxes and hit launch ftp browser after that you will see a file browser ,click on the www directory this is the folder in which we will upload our web pages to upload a web page click on browse select your html file or php file if you don’t know HTML or php you can learn it from w3schools .after uploading a web page visit your domain name and you can see  your website after few days your website would be index into search engines like bing, Google.yahoo.that all it

How to install backtrack and how to customize it plus installing ubuntu Software Center.

BackTrack is a Linux-based penetration testing arsenal that aids security professionals in the ability to perform assessments in a purely native environment dedicated to hacking.to install backtrack you need to download it from http://www.backtrack-linux.org/downloads/ choose your flavour (i am choosing gnome) and download it once you have download the iso you can alos run it on virtualbox or vmware or you can burn it on to dvd or usb Flash drive.in this case i am using DVD burn the bootable iso into a DVD with windows burner or use any kind of iso extracting  Software. i assume that you have burn it, then reboot the computer then a backtrack boot screen well come choose to run in defult text mode then a processing screen well came after that it will ask you for a user name and password user name is “root” and password is “toor”

after entering this backtrack desktop will open,there will be an icon to install backtrack on the desktop to install backtrack into the harddrive or to dual boot it with windows or any operating system click on the icon then a language screen will come choose the your language and click forward.

then it will ask your location and time zone give your defult location and TimeZone

 

Then choose the keyBoard layout and click forward

 

 

 

i am choosing USA.click Forward then prepare disk space screen will appear

 

if you whant o erase entire disk then choose the first Radio Button if you whant to install in Separate partion or to embed it with windows then choose the second Radio Button Agust the size of your Operating System and click forward then prepare partion screen will come

 

you can create,choose, format or delete the partion in this screen do what ever you like after that click Forward then Who are you screen will appear enter you login info and click forward.

then install screen will appear click install to install Backtrack in the harddrive.after that it will restart. after that backtrack will load from the harddrive if you have dual boot it with windows then you will see the choose operating System screen you can choose what ever operating system to boot

choose backtrack in this case(backtrack is ubuntu base operating system if you see ubuntu instead of backtrack don’t worrie its normal)then it will boot from the harddrive then enter username and passwaord that you have enter,

After that backtrack Desktop will appear you have at this point you have install backtrack successfully.

 

 

How to install Software Center to install application into backtrack?

 

 

Software Center is easy to use tool that helps user to install or to unstall software from there linux Distro.To install Ubuntu Software Center into BackTrack, then open the terminal

inside the terminal enter this line of command “apt-get install software-center” to Download and install Software Center intside the BackTrack (requires internet Connection).

 

It will ask that do you whant to continue or not, press y and hit enter to continue installation.

after that close the terminal.Then click on application which is located at left up,left of the desktop you will see ubuntu Software Center “open it”.

Then ubuntu Software Center will open

 

Type unity in the search menu and click install after that type “dock” and install avant Windows navigator or you can choose Docky.

when install make it you startup application to do that fallow the image

it will opeen startup program window click on add and type the name of the program and browse the location of the program.when you next time boot the operating system it will open the same program that you have install.you can also change the theme by slecting Appearance from the system>Preferences choose the them you whant.to change Wallpaper left mouse click and slect change backgraound choose the location of the image file then backtrack will automatically change the backgraound of the desktop.you can also install compiz from the Software Center and many other application for education or Developing.

Backtrack is same as Ubuntu the only difference is that backtrack has alot of crcking and hacking tools and other cool stuff.

How to boot and run linux from USB Flash drive.

To boot linux from usb flash drive you need a USB Flash Drive around 2GB and you need to download some of the following Software.

1==>Download Universal USB Installer from here.

2==>Download a linux distro in this case i am using Kubuntu .

after that run the Universal USB Installer then it will ask you to agree the License Agreement click “a Agree” to agree the license agreement after that setup your slections page will appear

Then select your linux Distro that you have Downloaded e.g. “kubuntu”

Browse the linux distro that you have downloaded e.g.”kubuntu-11.10-desktop-i386″

Then Slect USB Drive the e.g.”H”

Then click “Create” to extract the content of the iso into the USB Flash Drive.

This process will take 4 or 5 minutes after that it will say completed “click cancel to close the  window” then restart the computer “Rember to plug the USB Drive into the computer”

then a boot screen will show(if boot screen dosen’t show go to your bios and select boot option and change to usb first or  you can go to boot option and select the USB Drive to boot )

Select Run linux to run the linux Operating System.

Know you run linux operating system from your USB Flash Drive .

How to use linux Commands.

To use Linux commands you need to understand the Linux command terminal or Linux Shell as some say, to start using Linux commands open the Shell or the command terminal you would see a console window in that window you type the Linux commands to do your works some Linux commands are as fallows.

 

File Commands

  • ls – Directory listing
  • ls -al -Show listing with hidden files
  • cd dir – change directory to dir
  • cd- change to home
  • pwd – show current directory
  • mkdir file – create a directory with a name file
  • rm file – remove a file
  • rm -r file – delete a directory file
  • cp file1 file 2 – copy file1 to file2
  • touch file – create a file
  • cat > file – places stander input into file

System Commands

  • date – show the current date and time
  • cal -show the calender
  • uptime – show current up time
  •  w – display who is online
  • whoami – who you are logged in as
  • finger user – display information about user
  • uname -a – show kernel information
  • cat /proc/cpuinfo – shows cou information
  • cat /proc/meminfo – shows memory information
  • man command – shows manual of a command
  • free – show memory and swap usage

Net Work

  • ping host – ping host and output the results
  • whois domain – get the information for the domain
  • dig domin – get DNS information for the domain
  • wget -x host – reverse look up host
  • wget file – download a file
  • wget -c file – continue a stopped download

Installation

  • install from source file
  • ./configure  – software configurations
  • make
  • make install – install the software
  • dpkg -i pkg.deb – install a debian package
  • rmp -uvh pkg.rpm – install a package (Rpm)

Process management

 

  • ps – display currently active processes
  • top – display all  running processes
  • kill – kill process
  • killall – kill all process

Search Commands

  •  grep pattern files – search for patterns in files
  • locate file – find all instances of files

Face Recognition “lock the PC”

Face Recognition is a method for recognition images and face of animal or human, there are a lot of face recognition Software on the internet.Some face recognition Software help you to lock your computer or password protect it to unlock the Computer you need to view the image or face in-front of the camera.there is Software that i have use to do that its called “Key Lemon” to download the Software visit KeyLemon.com and click download after downloading it install it on the Computer after installing it click on the icon of the key lemon Software then click on settings and create a new model and also enter your desire password and click on update model,When ever you lock your computer it will show you the face recognition System instead of user logon Screen.

view your face in front of the camera and the Software will allow you the access if i doesn’t recognition your face type in the password.