Bitcoins : Part 2

-

In the previous blog post we were looking at the problems with physical forms of money. So now according to our agenda lets talk about the solutions to those problems...

Solutions...

  • Plastic money like credit cards to make money portable.
    • But the above solution still go as the physical form of money.
  • Solution # 2 is that we make something that is digital. Where there is no need to have any middle man while doing transaction of money. no need for any central authority for check and balance. The system should be distributed as well as decentralized. (What this system is? Is it about bitcoins? Or Something else? )
    • But again many problems are associated with this system...
I am pausing this session here, now if you are really concerned about crypto-currency then what you need to do is: Go here (bitcoin.org/bitcoin.pdf), read this paper and write in the comment section what you found from this paper. Also think about some of the problems associated with Solution # 2.

(To be continued.....)

Comments

Post a Comment

Popular posts from this blog

PHP chess board : how to make ?

-
Image
As we have learned much of the basics of  HTML and CSS . Let us now learn how can we make our web applications more user friendly, flexible and versatile, using php . Today we will see how to make a chess board using php in collaboration with HTML and CSS .  So, Let's start: BASIC php SYNTAX: Starting Closing Tags: <?php ?> Php code must be written in these tags. Variables:              Start with "$" sign e.g. $num=3;               ; is really important to put after every statement. Functions:              Functions start with the keyword "function". E.g. function power(){} Print:             echo "printing by using echo";             echo ("printing by using echo");             print "pri...
Read more

Good Pieces of Advice for Freshers

-
Image
To let you know a few useful things, I asked some experienced people, and here is what they have for you... Be open to changes. Focus on improving your soft / people skills. It will be hard sometimes but believe in yourself. You have got it. ( Rahat-Undergraduate ) Try to do good in quizzes and OHTs (One hour test or mids) cause when finals don't go well, these can help in getting good gpa which are comparatively easy then finals. ( Ayesha Munir-Undergraduate )   A few years later when you would look back at this time, GPA won't make you happy, but the memories of these 4 years will. Your career is important but so is having a good time. So work hard, party harder! ( Haris-Undergraduate ) From the start try to build your connections with seniors because they know more than you and.. are best counselors.. Focus on your quizzes and assignments because they are the building blocks of your Grade.. Your Good Image play some important part for favoritism points in exam....
Read more

Applications of Data Engineering

-
Image
In a previous blog post about data engineering, we went through several many concepts related to data engineering such as data modeling, and then we went through different types of databases, for example, relational databases and we also got a glimpse of relational as well as NoSQL databases. And in today's blog post we will be writing about data engineer applications. Which are basically the use cases of data engineering 1st let's see what data engineering applications mean; so basically when we have data and we have engineered it then there are several things that we can do with that data and these things that we can do with processed data are the use cases of the data engineering. For example: If we have filled our containers with the data then it's not of any good use if it is not clean and well-formed. If your data is well-formed and if there are no logical mistakes, missing values, and garbage then we can easily perform the use cases and applications of data enginee...
Read more

Elasticsearch and Redis : NoSql

-
Image
The colorful  bubble logo  is of Elasticsearch , while the redish logo is of Redis . First let's talk about Elastic search.. Elasticsearch is an open source search engine. Now, what is a search engine? Search engine is basically a website, for example: google.com, yahoo.com, bing and MSN. What we look as Google chrome, Safari or Internet Explorer is basically a Web browser. Let's say we type "www.facebook.com" in a web browser's address bar , then the web browser will take us directly to the website "facebook.com". As for search engine, if we type in its search bar , "www.facebook.com", then it will open up different links according to the search algorithm. So Elasticsearch is like a search engine. But it is different from traditional search engines. Like in most of the search engines, tables are used to store data, while elasticsearch is no schema based search engine. In place of tables, JSON documents are used in Elasticsearch. I...
Read more

UI / UX Designs

-
Image
Is there any website or an application that you enjoyed to use ? If I ask you why you like this particular application then most of you would say that it is fluent, it's easy to use or the theme is so soothing.  So what is behind all these user friendly themes and designs ? The answer is, UI and UX designs. UI stands for User Interface while UX is used for User Experience. In today's world it is important to provide user friendly interface. Your application must be liked by everyone to the extent that they don't want to close that tab.  Now lets dig deep into UI and UX designs.... UI vs UX designs.. The first thing is that UI designs focus on the interface or the front end, the application is providing to the user. It has to deal with beauty. How beautiful, attractive and good-looking is your application; determines its User Interface. While UX design deals with the experience of the user. Whether the user feels comfortable while using your application ...
Read more

E-Commerce : Platforms

-
Image
Before digging into E-commerce platforms, let's first understand what an E-commerce actually is? E-Commerce... According to the Tokenization Rule , E-commerce is the combination of "E" and "Commerce".  The word Commerce means trade or buying and selling of items, goods, services, hardwares and, softwares... etc. And " E " stands for "Electronic", electronic means something like electricity, like signals, like something in the form of electrons (at lower level).  Image Source So, the word " E-COMMERCE " means: " A type of trade, that is done using electronic devices (computer, mobile or ATM machines etc). "   And to achieve electronic commerce, what's the most important thing? think over it!  Yeah that's correct! your own Internet is the most important thing to do E-commerce.  Major areas of E-commerce are: On-line shopping or retailing On-line bidding or auction On-line soft...
Read more

Version Control Tools: SVN

-
Image
Someone once said:  The past cannot be changed, forgotten, edited, or erased. It can only be accepted . But then programming came into being and it stated that "you can change your past, but only the code past". Meaning; what you have coded earlier you can change, edit and improve it. And for that you need to have something like revision history, from where you can get the idea of what you have done (coded) in the past.  Questioning.. So how would you keep the history of your code? Would you make several copies after doing each and every change? Or will you opt for "control/command + z"? Obviously you don't go for such an inefficient way of controlling the version/history of your code while working on some large project. Answering... So here comes "version control systems". These systems/softwares are specially designed to help you in controlling the version of your project codes. They also enable you to share your code and collaborate...
Read more

How to take notes in Freshman Year ?

-
Image
Yes, you have to take notes in the university class!  Before talking about the notetaking strategy, we will understand the importance of taking notes. Importance Of Taking Notes No doubt there are a few students who can produce good results without even taking notes in the class. But their number is least. Most of us need to make good notes in the class especially when we are in university. Notes are important because: They help us to keep track of what we have studied in the whole semester. Notes help us to prepare for the exams, in a very short time. We can refer to our notes for short quizzes in the eleventh hour. In addition to reading and listening, writing notes increases the ability to memorize the important concepts. It helps you to realize that you have done something in the class. Now that we have understood Why to take notes? Let's dig into the notetaking strategy  Notes taking Strategies One of my friends Ramlah Aamir Aziz used to take...
Read more

Data Science : The Fusion Reaction

-
Image
“ Data is the new oil? No: Data is the new soil. ”          ~ David McCandless These days plethora of new things are coming like: "Naya Pakistan" , "Naya prime-minister" , "Naya Semester" and the list goes on... but Let's just talk about this "new soil" science that is "Data Science " Data Science is made up of two words: Data and Science.  Data is a Latin word and a plural of  datum, meaning "thing" It is first used in English in 1640's (17th Century ).  Science came from Latin too, it is derived from a Latin word "scientia" meaning knowledge . Then the old French said : "Hey, I don't like "scientia" let's call it "escience" or just forget about "e" in the beginning and say it: "science" " . Then an English came and said : "I order you to take this word as "science" and no more debate on this !" ...
Read more

Freshman Year : For All Engineering Students

-
Image
I believe:  "sharing good is caring" , s o, I decided to share some of the important videos, for all the engineering students, who are about to start their first semester especially in NUST .  so here you go.. (Click on The bulleted item, and you will get to the corresponding link) 1. Calculus: First, foremost and the dearest subject of students is "Calculus" , this will make you both cry and smile. So, if you want to do it well ,here are some videos: Professor Leonard:    www.youtube.com/user/professorleonard57/playlists I found it, really helpful 2. Applied Physics: Applied Physics abbreviated as "AP" is the second favorite subject of engineers at NUST (on a lighter note).  Michel van Biezen :  This is the physics vector playlist. You also can watch other AP related videos here: www.youtube.com/user/ilectureonline/playlists 3. Discrete Mathematics: I took this subject very light, but it isn't, so you need to pu...
Read more