Why My Mac Rebooted

You can find the previous shutdown cause on your Mac by running the following command in Terminal

log show --predicate 'eventMessage contains "Previous shutdown cause"' --last 24h

If Mac has shutdown in the time specified, you should see messages such as Previous Shutdown Cause: followed by a number. The number is a cryptic shutdown code representing the cause of the shutdown.

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Mi Band 3 NFC English Firmware Update (with using Iphone)

In this post, I explain how to upgrade your Mi Band 3 NFC wristband firmware version from default Chinese to English.

I give step by step explanation regarding firmware upgrade via an Iphone, you can find tons of explanations how can you do it with using Android at another forums.

This procedure is 100% working on my own Mi Band 3 NFC version.

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Orvibo S20 Smart Socket – Review and Installation

Sometimes you may think about is it possible to switch on or off an electrical appliance at your home remotely or to boil tea in your electric tea heater without coming home. Even though everything starts to be connected and managed over the internet these days, is it possible to do that for your old electrical devices. If your electrical outlet is smart then why not. In this post, we will examine the Orvibo S20 intelligent socket product from our intelligent house series. Continue reading “Orvibo S20 Smart Socket – Review and Installation”

How to Make Ethernet Cable – Step By Step Guide with Pictures

Physical cabling is one of the most important factor on transmission health. Ethernet Cable has to be prepared carefully and error-free. Most of the time, it has been experienced that the faulty cable can be able to make communication slower and there was some million-dollar level financial loss happened and also finding problem may be gets hours or days long. So, how to make ethernet cable properly.

Nowadays, although ready-made, fabricated patch cables are used, it is expected that a good network specialist will know how to prepare the Ethernet cable and have to ability to prepare Ethernet cable on its own. Continue reading “How to Make Ethernet Cable – Step By Step Guide with Pictures”

Copper Ethernet Cable – Standards Types And Usage

We are usually using copper ethernet cable for transporting Ethernet signal today. At our homes or work places the Ethernet cable is used between computer and switch or two devices which have need Ethernet connection.

The two main factors for using Ethernet cable is price and distance. The distance for transporting Ethernet signal from source to destination safely is 100 meters long. The distances above 100m, we usually use fiber optic cables for Ethernet communications.

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Physical Layer – Two Example from Daily Life

Physical layer represents a media that using for data transport from source to destination. Data is converted to bit level and ready to transfer via a physical media. The data conversion to bit level is accomplished by network hardware and software on computer (or network device).

I want to mention that where the physical layer used in real life, so I don’t give theoretical information at this post.

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OSI Layers – What and Where Using

Unfortunately, I couldn’t understand the OSI Layers at University. I read our books and also our teachers said what the OSI is, but no one show me where the OSI using in real life. After I started my profession, I realize that how important is the understanding OSI model and get information about which layer is using where with hands on experiences.

We can say that OSI is explain us how data transfer one point to another and which stations pass during this transfer period. The transfer function can be easily understand with separating the transfer path at the 7 main layers.

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Digital World – Binary and Decimal System

We have to understand the meaning of 0 and 1s which are fundamentals of digital world and electronics for understanding networking basics.

It is hard to believe that, all digital inventions around us are created with using 1 and 0 s, but it is true!

We have an information and we need to transfer this information from one point to another. Despite the fact that the analog systems have been used before, nowadays all information is transferring with digitally. Transferring information with digitally means converting this information to representation of 0 and 1s.

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