![]() For the Gmail two factor authentication, we will be using the Yubikey Hardware Security Key invented by the Yubico. In this article I will also explain how to activate the most advanced security on your Gmail account so that the hackers can never hack your Gmail account. I will also explain why you need to activate the two step verification “ 2-step verification”. I will practically create a Gmail account, and then using the Gmail two step verification, I will practically demonstrate how to secure your Gmail account using a cell phone. We will discuss the Email Architecture, study the different protocols like SMTP “Simple Mail Transfer Protocol”, PoP3 “Post Office Protocol”, and IMAP “Internet Mail Access Protocol”. Detailed Article on Yubikey Hardware security key:Įmail Architecture, Gmail two Step Verification, SMTP POP3 IMAP- This article is going to be a little bit longer, as I will try to explain things in detail.Watch Video How to secure Gmail from hacking?. ![]() How to secure Gmail Account from Hackers:.How to secure Gmail account / Gmail Security / Google Account Security:.Multipurpose Internet Mail Extensions (MIME):.Internet Mail Access Protocol, version 4 (IMAP4):.Version 3 (POP3) of the Post Office Protocol:.Message Access Agent Protocols: POP3 and IMAP4:.The below video from Skinny R&D gives an insight into the 555 timers as well. More technical details can be found in the 555 Timer IC Datasheet. For example, if we have a high (1) output, it will go low(0) once it receives an interrupt and stays low (0) till the next interrupt changes the status. At each interrupt, the output changes from low (0) to high (1) and vice versa, and stays there. In bistable mode, both the output states are stable. ![]() Similar is the case for a low stable monostable mode.Īlso Check: 555 Timer Monostable Circuit Calculator Bi-stable Mode Since the low state is unstable it goes to high (1) automatically after the interrupt passes. ![]() At the application of an interrupt, the timer output turns low (0). If the stable output is set at high (1), the output of the timer is high (1). The stable state can be chosen as either high or low by the user. This configuration consists of one stable and one unstable state. This character of unstable output is used as a clock or square wave output for many applications.Īlso Check: 555 Timer Astable Circuit Calculator Monostable Mode So the output will be swinging between high and low. This means there will be no stable level of output. The 555 timer IC generally operates in 3 modes:
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