Cookie is small piece of data added by website to client browser. When user, using the browser want to browse the same website, this website can load stored information from the cookie. This information such as user past activity in that website, any page that has been accessed, user login information, etc.
See google chrome cookie can be done using some ways : 1. Viewing using chrome browser menu
1. Using option icon in chrome (upper-right corner), choose setting
Chrome Setting
2. Show advanced setting in chrome (u can find the link by navigating to the bottom of the page)
Show advanced setting in chrome
3. Choose “content setting” in Privacy section
content setting in google chrome
4. In Cookies part, choose “all cookies and site data”
alt cookies and site data in chrome
5. New window will appear listing all cookies stored in chrome, you can choose to delete it by selecting the cookies and choose remove. However your action is very limited because you can only view and remove the cookie
Cookies and site data in chrome
2. viewing using extension
you can also see google chrome cookie using extension such as Edit This Cookie. It has some feature such as :
delete cookies
add cookies
edit cookies
search cookies
block cookies
protect cookies
export and import cookies in JSON
limit expiration date of any cookies
However this browser extension has option to add ads or behave like an adware. It is said that it is used to support the extension and unicef but, if found out it is not needed you can just opt-out it in extension setting.
Converting video files to mp3 is needed if you want to extract sound from video file. This application i used to extract capture sound from mp4 video files and convert it to mp3 files.
THis can be done easily using Free Video to Mp3 Converter “FreeStudio”. I ve been using this software for converting my video files to mp3
this free video to audio converter also has some output options in different mp3 quality
Free Video to Audio Converter
from the explanation in its website this software can perform many actions such as :
– convert video and audio files between different formats as well as iPod, PSP, iPhone, BlackBerry and all other popular mobile phones and devices;
– burn and rip DVDs and audio CDs;
– upload and download YouTube videos and music to your computer, iPod, PSP, iPhone or BlackBerry;
– perform basic editing of audio and video files;
– record videos and make snapshots;
– create 3D videos and images.
It is really complete software package and its nice to use it because it is free,
Download it Here 🙂
Host file in windows is used to map ip address into the its name. By using hosts file we can refers any particular IP address by using the name we specified.
the hosts file contains lines of ip address and its name for example
127.0.0.1 localhost
so every time we use ‘localhost’ in any networking activities in our laptop, this will be translated into 127.0.0.1, which is our loopback ip address, ip address belongs to our own laptop/pc/device.
How to edit hosts file
editing host file in windows is as simple as adding new lines containing ip address, space, and name we want to refer.
for example i want to add ip address 167.205.1.34 which i want it be referred by college.
just add it below the existing line
1. the hosts file is located in C:/Windows/System32/Drivers/etc/
it is file with no extension
2. To open this file, you will need administrator privilege, so you need to open it using any word processor that has administrator privilege confirmed.
for example we can use notepad, but when we want to run notepad,
first, do the right click on notepad icon, then choose ‘run as administrator’, choose yes when dialogue appear
3. in menubar choose File > Open, look for C:\Windows\System32\drivers\etc
if you don’t see any file, make sure you choose *All File in file type option
How to edit hosts file in Windows 7
4. You will find the hosts file, choose it, and open. Add the ip address and name you want and save those notepad using Ctrl+S.
Blocking web address using host file
Other simple use of Hosts file in windows and other operating system is to block web address. This can be done by pointing any web address which is inn their domain name, to our local ip address. for example, we want to block google.com and facebook.com. Then just add in our hosts file
127.0.0.1 google.com
127.0.0.1 facebook.com
it will point google.com to 127.0.0.1, our own ip address. so it will not reach the real google.com and display nothing in the web browser
have you experienced a moment when you use command prompt and it feels not comfortable? if yes, then the answer is maybe because by default we can not do copy paste in windows command prompt. To enable Copy and Paste function in CMD, we just need 3 step.
1. Open/Run CMD
2. Right Click in Windows Border, choose properties Enable copy paste in Windows Command Prompt
3. In new properties window, check the “Quick Edit Mode” and click OK Enable copy paste in windows cmd
Now you can easily copy paste any text in Command Prompt using right click.
simply do the right click will paste any previous text stored in clipboard.
while pointing any text by blocking any text will copy the text in cmd to clipboard.
How to see your windows product key?. How to see your windows 7 serial number? Windows product code once installed, this information will be saved by windows in registry, there is no common utilities provided by windows to look or to view this product key or serial number. However if you want to see this windows product key or you want to see your windows serial number. there are many free programs available to download.
one of those program is belarc advisor.
Using this belarc advisor you can get more information that you need. Belarc Advisor will not only provide you your windows (windows 7, vista, xp) product key/serial number. It will also give you any product key from application program that you have installed into your PC.
It gives you more for less expectation, in fact, it will display our computer profile summary, haha its scary actually because it can reveal our sensitive data such as our windows security update status, any used application in some past days, and any media storage that we had plugged in into our computer
This is How Belarc Advisor shows me my windows 7 product key
How to see your windows product key
It may take several minutes for belarc advisor to get all of this data, but it is very informative and very easy to use :).
If you want to see your windows 7 product code / serial code, just Download it here
Installing different version of windows in one computer may be needed to get one advantage that other version dont offer.
Usually the default boot loader version will be windows version that is installed last. This default boot loader however can choose which windows to load when the booting started. however, You can modify it through msconfig.
by using msconfig you can change default boot order in you windows PC
1. click windows logo
2. type “msconfig” in search form
3. in msconfig window choose boot menu
4. click the OS you want to set to be default OS to boot.
Change default boot order in windows using msconfig
Tier 1 network terms is usually used when we talk about computer networking, from meriam webster dictionary the definition of tier is :
a : a row, rank, or layer of articles; especially : one of two or more rows, levels, or ranks arranged one above another
b : a group of political or geographic divisions that form a row across the map (the southern tier of states)
Tier 1 network can be understood as rank 1 network, Tier 1 ISP then refers to Rank 1 ISP. from wikipedia the tier 1 network is an internet protocol network that participate in the internet via settlement-free interconnection called settlement free peering.
Tier 2 network / ISP is network that still needs tier 1 ISP reach some portion of (global) internet. This tier 2 ISP pays for unequal traffic flows between them, the term fee-based peering or transit is usually used to refers to this kind of settlement. Tier 2 network may connected through same size network with settlement free peering (tier 2 to tier 2)
While Tier 3 network / ISP is network that is connected to global internet through Tier 2 ISP. as the customer of bigger ISP, they pay for the transit fee to its Tier 1 or Tier 2 ISP.
You can observe the network hierarki from this image Tier Network Hierarchy
From IDC White Paper (Tier 1 ISPs : What Are They And Why They Are Important) there are some characteristics that represent Tier 1 Network :
1. Tier 1 Networks Dont Pay for the trafic between similiar size networks
2. Tier 1 Networks Have access to all routing tables from their peering networks
3. Tier 1 Networks peer on one or more continent
4. Tier 1 Networks own or lease transoceanic fiberoptic transport
5. Tier 1 Networks deliver packet to and from customer and to and from peers around the world
Peering
in computer networks, peering means voluntary interconnection between separately internet network in purpose for exchange traffic between the customer of each network. Each participant doesn’t pay for the traffic, instead they get the money from their own customer. The term peering is used when two participant shared the same link with same size (equivalent sized partner).
The biggest internet provider that connected accross continent is example of tier 1 ISP. some of them will have underground oceanic backbone to ensure it can deliver the highest data rate.
There are 3 basic form of interconnection rules : public peering, private peering, and transit.
private peering refers to direct interconnection between two ISP. this connection is built via layer 1 and layer 2 link between ISP with similar networks capacity and traffic level. Its exclusive and expensive
public peering refers to multiple interconnection of network through internet exchange. it is the predominant model for exchanging traffic between ISP. The term public implies that many tier 1 or tier 2 networks can connect through it. The service itself can be free and commercial. the commercial one tough, tries to give the experience equal with private peering, they move incredible amount of traffic, without loss.
Transit refers to selling dedicated access through ISP network via private lease-line telecommunications circuits. Transit cost comes from circuit cost and variable cost associated with the traffic carried upstream to the internet.
Internet 10 is ie accompanion for windows 8, but it can be downloaded freely and run well in windows 7. Whats new about internet explorer is that internet explorer 10 offers new performance, much better than its predecessor, other older ie version
some site has displayed benchmark result of some most used browser such as firefox, google chrome, opera. And among these browsers internet explorer 10 has showed really good result loh 🙂
Plus :
1. Some old system/application in corporate environment is built browser based
you will meet some application and system that can only run in Internet Explorer, so using internet explorer 10 will still offers u ability to access the application while having better user experience
2. Better performance in javascript and html 5
Internet Explorer 10 has known to have better performance in javascript and html 5, its in the best 2 among other browser. Now, internet explorer upper rival is google chroome, cool isn’t it
1. Minimized tab representation
one thing i hate from this browser is that this browser still showing multiple icon in our windows taksbar for each tab we open.
somehow this kind of representation makes me think that i had open many programs separately and drives me to think that my laptop works much harder to run each internet explorer tab
here is the picture showing how browser tabs resulted in minimized IE icons in taksbar..
Internet explorer 10
2. right click menu
beside those disadvantages there is still right click menu option that is missing, there is no ‘show image’ or ‘open image in new tab’
internet explorer 10 right click menu
so its harder for me to take images url source or to open images in new tab
to download the internet explorer 10 you can open here
Probability and statistics is very important in real life application, it is very useful for analysis in business process and market research. here i write some term usually used in probability and statistic in order to make us more familiar and to review/remember it.
1. Random Experiment : Experiment that its outcome can’t be measure for certainty for ex, the result when we toss the dice in contrast with biology experiment that usually comes up with general result, provided we control the variable under alike conditions
2. Sample Spaces : A set S that contains of all possible outcome from random experiment. when we toss a dice than sample space is (1,2,3,4,5,6) or all possible outcome of each side of the dice
-Sample points : Each outcome in sample spaces.
-Finite sample space : if sample space has finite number of points (discrete sample space ex= integer)
-Countably infinite sample space : if it has as many points as natural number
-Uncountably infinite sample space : if it has as many points in some interval in x axis 0<=x<=1 = (nondiscrete sample space ex= real number)
3. Event : is subset A of sample space S, a set of possible outcomes
-Elementary set : single points/posible outcome
-Certain set : set S, where any of S can occure
-Empty set : if element can not occur in S
-Union : if either A or B or both occure = A U B
-Intersection : if both A and B occurs = A and B
-complement of A : A' = Not A = Sample space - A
-A but not B represented by = A-B or A and B'
-Mutually Exclusive : If A and B can not both occur (A and B = 0)
4. Axiom of Probability
Supposed we have discrete set S then all subsets corresponds to event,
Conversely we have nondiscrete set S, only special subsets called measurable correspond to event,
To each event A in the class C of event, we associate a real number P(A).
P is called probability function, and P(A) the probability of event if the following axiom is satisfied
[caption width="500" align="aligncenter"] axiom of probability[/caption]
Harddisk and Other Input Device Aren’t Detected During Booting. It happened right after i tried to modify bios setting. actually i just want to change the boot order but somehow i slipped, so in order to keep the last setting i choose to activate the optimized default options. but after its restarted it opened the bios setting directly without any button pressed. I also couldn’t find booting priority options.
harddisk, flash usb, and dvd writer were also not detected by my laptop. i tried optimized default menu once again but i still couldn’t make it right. it didn’t show any input device during booting.
after struggling for a while i found the secure boot options
i wasnt sure about this option actually and i hadnt looked for it in internet, but after i disable it
tadaaaaaaaaaaa.
my laptop worked well like before 🙂
so if you somehow have some problem with me, make sure to check for secure boot option in your bios and disable it, it may solve your problem.
axiom of probability[/caption]
