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Learner Reviews & Feedback for Blockchain Basics by University at Buffalo

4.6
stars
7,573 ratings

About the Course

This first course of the Blockchain specialization provides a broad overview of the essential concepts of blockchain technology – by initially exploring the Bitcoin protocol followed by the Ethereum protocol – to lay the foundation necessary for developing applications and programming. You will be equipped with the knowledge needed to create nodes on your personal Ethereum blockchain, create accounts, unlock accounts, mine, transact, transfer Ethers, and check balances. You will learn about the decentralized peer-to-peer network, an immutable distributed ledger and the trust model that defines a blockchain. This course enables you to explain basic components of a blockchain (transaction, block, block header, and the chain) its operations (verification, validation, and consensus model) underlying algorithms, and essentials of trust (hard fork and soft fork). Content includes the hashing and cryptography foundations indispensable to blockchain programming, which is the focus of two subsequent specialization courses, Smart Contracts and Decentralized Applications (Dapps). You will work on a virtual machine image, specifically created for this course, to build an Ethereum test chain and operate on the chain. This hands-on activity will help you understand the workings of a blockchain, its transactions, blocks and mining. Main concepts are delivered through videos, demos and hands-on exercises....

Top reviews

MK

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Very nicely arranged course and very informative. Learned a lot in no time. Only hurdle is The Ethereum Virtual machine takes hell lot of time in the Miner step. rest all fine. thanks a lot.

SR

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the blockchain concept is gonna be a revolutionary one in every field.

this course is very helpful and easily understandable for every one irrespective of the background from which they came

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1801 - 1825 of 1,892 Reviews for Blockchain Basics

By Leon H

Dec 16, 2018

The transcript text should be spell checked

By Nanda K

Oct 3, 2018

Good material but course is not taught well

By Vlad S

Feb 20, 2021

The explanations were rather superficial.

By RAKESH P

Mar 6, 2019

its good to knowinng about the blockchain

By Avijit G

Feb 21, 2022

Good content but lectures are too short.

By Hemant k

Jun 12, 2020

course in well but need more explanation

By Akash S

Jun 26, 2020

Its very basic without much hands-on.

By イザナギ風英仁

Jul 18, 2022

Basics needed for the course.

By Aditya M

Jun 6, 2021

Could have been more detailed

By Chaithali B

Jun 20, 2020

Good experience as a beginner.

By Lee C C

Aug 17, 2022

no programming.. very basic

By JIAN C Y

Jun 22, 2020

It quite hard to understand

By Ruiming D

Jul 28, 2018

Maybe too high level for me

By Mayank M

Apr 23, 2020

nice course for beginner

By Nam H

Jun 18, 2018

Ok, it's a good overview

By Md. F M

Jul 19, 2020

It's a good course.

By 大可劉

Jul 15, 2020

... Too simple

By Clot J

Feb 11, 2021

Basics only

By Nafis F T

Aug 14, 2023

Good

By Muhammad A M

Jul 19, 2022

good

By Joerg F

Mar 2, 2021

After terminating another Coursera course (Applied Machine Learning in Python) which I found too difficult to be considered a medium difficult course, I found this one too easy.

Also, I didn't like the mixture between very short videos with a - sorry - strange tutor that most of the time didn't look at you (because of the camera angle, I found this very disturbing) and a whole bunch of reading material where a lot of the links didn't work anymore. It gave me the impression, that this course has been compiled without putting very much effort into it and there is no regular checking whether the linked material is still available.

The tests were a joke, they often just had 3 or 4 questions.

Then - in the final "programming exercise" you had to install a virtual box in the commercial software VirtualBox. VirtualBox as a prerequisite to successfully complete this course was never mentioned in any of the previous sessions. Luckily I already had a working VirtualBox installation on my private PC. (On my company PC, the admins would never install VirtualBox due to security reasons.) It would have been very frustrating if I had found out in week 4 that I was not able to complete the course. At least the environment in that "Ethereum" virtual machine was working fine and was very convinient to use.

By Robert S

Oct 30, 2021

If your going to have someone just read an English script, why select someone who you can't understand? It's extremely frustrating. Videos are incomprehensible and it goes from 0-100 extremally quick. Download the suggested reading material first and study it before going to the videos. I ended up just re-typing the video scripts and reading them myself instead of trying to comprehend the reader. This course explains everything you need to know about the blockchain, but you have to do a lot of work to put it in order and actually understand what their trying to explain. It's obvious that that there was no case studies on how effective this course was put together or arranged before making it public. I gave it two stars instead of one, only because the material is there, its just a mess for the user to decipher it all. If the course instructor could speak clear and concise English, I would of bumped this up to 4 stars.

By Khalid A A

Jun 20, 2020

This is a good attempt of an online course. There were lots of broken links on the reading information. In addition, I saw many questions that are not answered by the course moderators. Furthermore, the last part of the course which was the final assignment was methodical in the first part but after that, the information was not provided on what to do next, so I had to relay on my background information to finish the assignment, which is not the correct methodology in my opinion for a fair evaluation. Minor improvement is required in my opinion. Thank you for the information and good luck.

By Tymoteusz M

Aug 12, 2022

I often found the instructor overexplained obvious high level elements but the explanation for topics that require good explanations were unclear. For example, 'Securing Blockchain' (week 3) video was incomprehensible to me. Example 2 could be the Robustness video which didn't explain well how the longest chain wins solution works which is what the video is really about. The instructor ofen just reads out the slides. The resources are a collection of links. The standard of this course is lower than usual for Coursera.

By matteo b

May 3, 2021

Lessons take 10 minutes only and students have to ready everything by them self. Video lessons are not enough to give a good understand of the topic (they shouldI

99% of the time is spent reading documentation and paper (no written by Professor). Time to read documentation is under estimated. Usually a course helps to speed-up the learning process. That's not the case of this course.

The list of documentation is enough, in this case Professor support (lessons) is useless.