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Computer and Internet

Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.

HTTP vs MQTT for IoT Devices

Regular readers definitely noticed that in our IBM Watson IoT example codes for ESP32 Arduino, we have used both MQTT and HTTP. Also we talked about HTTP POST method. HTTP POST is easy, is not it? It is really easy to write code for Arduino to construct HTTP POST request. Because all of us more or less used with HTTP based API and cURL. It will appear that as MQTT is complex and HTTP is better to … [Read more...]

InfluxDB vs CouchDB for IoT Backend

InfluxDB is an open-source time series database with restricted features with support for processing data from Graphite. CouchDB purely a free software. InfluxDB is quite different from CouchDB. InfluxDB supports SQL style query. InfluxDB accepts data via HTTP, TCP, and UDP and directly supports Grafana. If you use TIG Stack (Telegraf, InfluxDB, and Grafana), within half an hour you'll get … [Read more...]

Which Cloud Databases Can Be Used for Internet-of-Things

The Internet of Things (IoT) is delivering new challenges for data management and analysis. There are different NoSQL databases such as MongoDB, CouchDB, Redis. Although both SQL and NoSQL databases are viable for IoT data, different NoSQL databases considered for practical reasons. Various studies have checked database performance of different databases under workloads and it is concluded that … [Read more...]

HTTP/3 : The Next Protocol After HTTP/2 and HTTP

The word HTTP/3 will astonish many as HTTP/2 yet not widely adapted (34% world adoption rate). HTTP/3 or HTTP-over-QUIC is the next protocol after HTTP/2 and HTTP 1. HTTP/3 will be a combination of SSL and TCP. HTTP/3 will use QUIC for transport. HTTP/3 will be the third major version of the Hypertext Transfer Protocol and based on previous RFC draft "Hypertext Transfer Protocol (HTTP) over QUIC". … [Read more...]

What Type of Cloud Service Reselling Returns Higher Profit

Unless Knowledge returns money the curiosity to learn more starts decreasing. Here is an Article on What Type of Cloud Services Reselling Return Higher Profit. Calculating profitability not easy matter to many of the small to medium-sized reseller businesses. The concept of buying a product and selling sounds simple, but with falling prices of hardware and software, and more middleware requirement … [Read more...]

What Happened on IBM Developer Day 14th March 2019?

10 days back, IBM had Developers Day in India. What Happened on IBM Developer Day 14th March 2019? What gain your new company will get by attending such event? In very short without making the description of the event detailed (and disgusting), we must point it that it was more than a trade fair than just series of lectures. There was lot of things to play hands-on. IBM has uploaded some of the … [Read more...]

Contact Bounce of Pushbuttons and Arduino ESP32 Debounce

No surface is perfectly smooth and inelastic. When two surfaces of pushbutton comes together with any force, there is kinetic energy that makes ringing. In one older article we talked about different types of switches. That basic idea and terminogies required to be known for this article on the phenomenon contact bounce of pushbuttons and counteracting with software library. Contact bounce is a … [Read more...]

Writing to CouchDB/Cloudant From ESP32 Arduino

You'll not get full working code in this guide but get full hints of code, resources. This guide will help to learn our regular readers in opposite direction of learning. Methodology is exactly like we did with Watson IoT platform (our GitHub repo has four sample codes). Here Are Some Tips, Resources For Writing to CouchDB/Cloudant From ESP32 Arduino. Our regular readers can recall about HTTP Post … [Read more...]

What Are the Use Cases for CouchDB

What Are the Use Cases for CouchDB? CouchDB is suitable for applications with accumulating, occasionally changing data with pre-defined queries. NoSQL is bad to anyone starting. But SQL not required for certain applications, such as writing log files. MySQL of course powerful but the features and power not exactly suitable with the need of mobile aplications, data analytics, some web applications. … [Read more...]

How to Install CouchDB on Ubuntu Cloud Server

Here Are the Steps to How to Install CouchDB on Ubuntu Cloud Server With root Access as Single Node. Data can be ported from Cloudant to CouchDB. There is CouchDB, CouchIO, CouchOne, Couchbase, Couchbase Server, Couchbase Mobile, Couchbase Lite, CouchApps, BigCouch, Touchbase, Membase, Memcached, MemcacheDB. All are different but are related in a way not obvious from the names alone. First, there … [Read more...]