MySQL is the most popular relational database which is free to use. It is normal for many of the MySQL users to think - why we will learn MongoDB or any noSQL? Typically, MongoDB is for a different type of applications to meet today's need. You can think the visitor tracking plugin for your WordPress website using MongoDB. It is not a good use-case of MongoDB, but probably points where MongoDB can … [Read more...]
Archives for September 2019
What is the Relationship Between Cloud Computing and IoT?
Virtualization is the technology behind Cloud Computing. Cloud Computing itself has different service models. We work on with self-hosted server with Infrastructure as a Service (IaaS) model of cloud computing. IaaS is used as a replacement of traditional virtual private servers, dedicated servers, shared servers for easiness, more control and lesser cost. Even at the end of 2019, the cost of a … [Read more...]
Raspberry Pi 3 Vs Raspberry Pi 4 For Dev Works
Raspberry Pi 4 released just a few months back from today. Raspberry Pi 3B+ has not become obsolete. It will be supported for the projects which work well with it. Unless you need the extra RAM for a project, getting a new board will invite to buy or 3D print an enclosure. The port layout of Raspberry Pi 3B+ is different than Pi 4. The more bad news is that - Pi4 gets hotter. Does it play 4K … [Read more...]
Fields of Application of Big Data : Part II
This is the second part of the series Fields of Application of Big Data. In the first part, we have discussed the basics. We are starting this part discussing the marketability of Big Data. It can give the impression that the results of big data are equally common in every field of application and weighted equally. However, all fields of application are diverse, so that in some areas specific … [Read more...]
Fix : openssh-server E: Sub-process /usr/bin/dpkg returned an error
Previously, we published a general guide on how to fix E: Sub-process /usr/bin/dpkg returned an error code message on SSH. Here is how to fix openssh-server E: Sub-process /usr/bin/dpkg returned an error. Do not close an active SSH session with this error. These errors are not uncommon on virtual servers, cloud servers for the virtual appliances. There can be a minor bug of the virtualization … [Read more...]
List of Python Packages for Deep Learning
Previously, we published a simillar list named List of Python Libraries For Data Science & Machine Learning. Just to repeat the same sayings - knowing basics around Python is a need for development around Data Science. We guess, most of the readers already used with installing Jupyter and working with Jupyter. This article is not exclusively related to Jupyter Notebook but is very important … [Read more...]
Fields of Application of Big Data : Part I
The possibilities with regard to the networking on the Internet means that a lot of data exchange takes place between the devices. This exchange includes both structured and unstructured data. More efficient process design and profit maximization should now be the focus of most business-driven companies. In order to be able to position the company position and the specially developed products … [Read more...]
Cloud Infrastructure for Sensitive Workloads
Business-critical applications in sensitive industries are facing hurdles in the cloud. Cloud made the entire IT infrastructures possible to be configured with just a few clicks of the mouse, making the servers are immediately available, and when RAM, storage or computing power is scarce, the infrastructure can be easily readjusted and scaled. Virtual Locations aims to combine the benefits of the … [Read more...]
Control Multiple AC Appliances With One ESP32 Arduino
The result of this guide will be a local control panel with ESP32, pushbuttons, LED indicators, relays which can control the connected AC appliances by the simple pushbutton press. When connected to Wi-Fi, it will be able to control the thing over the internet with simple HTTP cURL commands. This guide and code can be used for home automation or creating smart power outlet. Single relay version of … [Read more...]
Edge Computing vs. Cloud Computing
Cloud computing happens in some centralized location with a huge resource in the pay-as-you-go model. Edge computing happens on the device itself. This comparison arises in this era of big data and IoT for different reasons. Edge computing is the data processing power at the edge of a network which is pushing the computing applications, data, and services away from the centralized nodes. A … [Read more...]
URL Format For Sending Commands Over HTTP (cURL) to IBM Watson IoT
HTTP commands open up wider way to control. This is the corrosponding GitHub repository with a basic example matched with this guide. Already we have shown the serious usages of the method through our Controlling AC Powered Appliances With ESP32 guide. Here is a Discussion on URL Format or Sending Commands Over HTTP (cURL) to IBM Watson IoT. IBM's platform is configured to accept events from … [Read more...]