CCNA Day01 Session 01 - 2018

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What is a Firmware? ( Intermediate level )

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Hi Friends, Today we will learn about Firmware! ( the lesser known part of a Computer ) We only hear and see more of software and hardware/ But there is another very important part of any computer or an electronic device... This is a Firmware. To make is simple  : I would say " Firmware is a combination of hardware and software" Let dig into it, and find more details: There are a lot of devices that contain firmware, to name a few Computer peripherals, Embedded systems, consumer appliances and Computers. A very important point to note for a firmware is that it always resides on Non Volatile memory devices such as Flash memory or a ROM, also, these could never be changed in their lifetime ( major cases ) some manufactures also release updates to the Firmware to fix bugs and  some issues if reported major. These updates have to be FLASHED into the firmware. We will go into the flashing in another blog. For now, just remember flashing is the way any firmware is ...
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The BOOT Process ( Intermediate level ) Class 4.

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Hi Friends, Now, that we are ready : We have gone through Basics of Computer/hardware and software lets now begin the interesting journey. The First STEP ( Once you press the power button ) We will see how the computer starts. After the power button is pressed, it performs 'power on self test' POST. POST checks a computer's internal hardware for compatibility and working status before starting the boot process. If the computer passes the POST, the computer may give a single beep and it starts to continue to boot. However, if the computer fails the POST, the computer will generate a beep code that tells the user the source of the problem. Any errors here can be identified by beep sounds ( as display drivers are not loaded yet and there is no display formed ) However, because of the wide variety of different computer manufacturers with this BIOS, the beep codes may vary. For a DELL motherboard below are the codes. 1 beep - BIOS ROM corruption or failure 2 bee...
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How to set Chrome to not save history.

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Dear Readers, Lets learn how to avoid Chrome to save history. ( I have seen many requests regarding this on various forums, hence thought of sharing an Idea to accomplish this. )   Google Chrome has recently become the Default Web browser of choice for many Mac and PC users ( including me ). It’s fast, flexible, smart, user friendly, and relatively secure Etc Etc. But it has an issue / a flaw: unlike most browsers, Chrome has no user setting to prevent or automatically clear the browser history. We can though always manually clear the history, but doing that takes a few clicks through a few menus; not ideal. Luckily, there’s a trick we can use to prevent browsing history from being recorded in Chrome. See below for the trick. Chrome stores the browser history in a file on your computer’s drive. If we limit Chrome’s ability to modify that file, it won’t be able to record any web addresses. To start, first go into Chrome and manually clear your history by pressin...
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