firmware vs driver This is a topic that many people are looking for. bluevelvetrestaurant.com is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, bluevelvetrestaurant.com would like to introduce to you What Makes ALL Your Electronics Work – Firmware Explained. Following along are instructions in the video below:
“We think of hardware and software as separate entities that work together to provide us us with the computing experience that we know. And tolerate hardware is the tangible stuff can touch like a keyboard or a hard drive. While software is the lines of code that tell the computer to make games tweets and cd doings actually appear on your screen. But you may have also heard the word firmware tossed around a fair bit.
So what is that is it something you buy to show off your buttons of steel after spending enough time at the gym. No firmware is often thought of as something in between the software and the hardware. It s actually a specific kind of software. But unlike your operating system or any other kind of program.
It does not typically sit on a hard drive or an ssd instead firmware can usually be found on dedicated memory chips. And it s that fact combined with that it sits very close to the metal that leads people to think of it as kind of like a a hardware software hybrid unit. But then what does close to the metal mean exactly well the code that makes up firmware communicates. Very directly with your hardware.
A regular program. Which has to go through ap is the operating system and device drivers. And the reason for this is that it s meant to provide a fundamental basic link and method of control for the system s hardware for example inside of a pc. There s a chip that stores the system s uefi or bios.
Which are specific types of firmware that you can learn more about right up here the bios starts running as soon as you press the button on your computer initializing the hardware depending on how you ve got it configured and checking for any errors. Once all that s done the bios hands virtually all of its control over to a much more complex operating system such as windows or mac os. However the bios and older systems. Provided a simple reliable link between peripherals like the keyboard and system software.
Even after the operating system started running other types of firmware take a much more active role in how a system functions your desktop monitor has to decode the digital signal that sent over an hdmi or displayport cable to create the image that you see which requires processing. So therefore it needs some firmware to run the show when you bring up that on screen menu you know to change the brightness on your monitor or whatever what you re seeing there is the firmware acting as the monitors. Entire operating system. So even very simple devices like tv remote control need firmware to turn your button mashes into infrared beams that your tv can comprehend so because firmware is so important to these fundamental linkages.
It does sometimes need to be updated in order to provide extra functionality or to fix bugs a great example is how bios updates are issued for motherboards..
So that they can support a new cpu that uses the same socket for example. But because most electronics cannot function without firmware. It s often recommended to leave it alone unless. There is a specific problem that you know would be fixed with an update.
Because if the update fails due to something like a power outage. The system can end up being permanently bricked now unlike a corrupted os. Which can just be wiped and reinstalled corrupted firmware. Often can t be fixed as the system can no longer.
Even understand that you want to wipe and reinstall the firmware. It needs not corrupted firmware for that and while some modern systems try to avoid this problem by having like a second bios or firmware as a fail safe. Many gadgets lack this option so make sure that you use caution. When you re updating your firmware make sure the battery is charged use a ups for your desktop pc or your television and also verify that you re getting firmware from a reputable source like the manufacturer itself then there s other firmware that can t be updated at all either because it s stored on rom or read only chips that physically cannot be updated or because there s some kind of a software lock.
Simply don t need firmware updates. Like a really simple. Usb stick. While others use firmware to store.
Proprietary features making them harder for competitors to figure out. However software restrictions on firmware can often be easily bypassed either by installing custom firmware that can sometimes enable additional functionality or by malicious actors that use firmware as an attack vector firmware. Often has no encryption whatsoever. And developers have mostly been concentrating on making operating systems and applications.
Secure instead making firmware. A target for both hackers and spy agencies. Especially because a firmware hack would obviously survive reformatting the hard drive and can be very difficult to detect and because firmware directly controls hardware hacked firmware can actually cause physical damage. Even there was a proof of concept on a few years ago where a researcher hacked the firmware of an apple macbook battery to cause it to overcharge and permanently break.
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