Understanding the concept of firmware and it goes in the IT world
We often hear about firmware when it comes to mobile phones or cameras, and we often hear about firmware update. Therefore, probably the first question that comes to our mind is what a firmware update is, and what exactly firmware is. This article will try to answer these particular questions while trying to offer a short guide into the world of firmware.
Firmware is everywhere
When discussing about a firmware we are actually discussing of a form of fixed, small computer programs that come to control different devices – for example, your mobile phone is controlled by a firmware, so is your camera or your hard disk drive. Most end-user products use firmware – anything from keyboards, TFT screens, printers and even industrial robots. Anything that needs a set of instructions to run on – imagine that each of your devices has a series of algorithms implemented for each function, and it is perfectly normal, this is how we are able to interact with our electronic devices.
Definition: firmware vs. software
Most people mistake the concept of firmware for that of software – the thing is, there no strict difference between the two, and both have rather vague description terms. In other words, you can easily define firmware using the definition for software and vice-versa. Nevertheless, firmware is generally involved only with the most basic functions of a particular device, while software goes as developed as an operating system. Nevertheless, with the development in the technology department, we are facing even more developed firmware – for example, LCD modules, flash chips or other similar devices have more than one level of programming, and quite complex built.
If you think about firmware, you realize that most of your computer peripherals are actually small computers on their own. Consider your printer or your scanner – since they to interpret data you send to them, they need a microprocessor therefore a small motherboard of their own – all firmware existing in that particular device acts similar to a computer motherboard and processor.
Nevertheless, for those devices that require more complex programming, there is a way through which they can load all necessary data at start-up, making the whole system more flexible. Some people come and ask what computer firmware is, however, it is rather difficult to answer that particular question – there is no computer firmware itself you can update, there are quite a number of firmwares you can update.
Firmware updates
Speaking of firmware updates, I have been encountering questions such as what is a firmware update, why is it useful and so on. Frankly, I only recommend considering firmware updates if they are truly necessary – in other words, if your application works fine as it is and the firmware update is not known to bring major differences, it would be wise not to update it. Updating your firmware is often something that should not be done by a beginner since it can lead to some disastrous effects if one does not know what he or she is doing.
One of the most known types of firmware updates is in regards to BIOS updates – nowadays, it is a lot easier to update your BIOS, compared to how it was in the old days. Not to mention that it has become a lot easier even for video cards or network cards – basically, with computers, firmware updates have become something of an exercise rather than a challenge.
The only place where it can become difficult is in the smaller devices section – firmware updates for mobile phones, PDAs, mp3 players or other similar devices. With these, the consequences can be more disastrous, and one can cause device failure if they have no idea how to make a correct firmware update.