Gadgetory

most of us are likely aware of the major multitasking operating systems or OSS that manage our computers these complex pieces of software are designed for powerful hardware and easily capable of running many programs at once since their OS can prioritize Hardware tasks requests known as system calls and allocate them processing time or memory space as needed and chances are you've already chosen a favorite one but what makes things like pocket-sized devices take any power what about the unique electronic systems like the ones found in cars or even the hive minded robots that will eventually defeat humanity don't these things need some sort of operating system - yes they do and they actually differ from PCOS in a few key ways we'll start with the ones designed for battery powered devices like phones and tablets these might seem like they should be very different from a desktop OS but thanks to the incredible performance of modern mobile processors top mobile OSS including iOS and Android are multitasking operating systems capable of balancing multiple background tasks and user input with grace and poise usually but it hasn't always been this way in the early days of mobile computing battery life and performance were much less plentiful than they are today so the embedded operating systems were King examples in which being Windows CE II and Palm OS they had limited functionality and could only handle one task at a time so by today's standards they'd be considered pretty useless on a phone but my grandpappy tells me they were essential for these strange devices called PDAs but seriously even though the days of pocket PCs are behind us embedded OSS are still essential for many other low powered limited functionality devices like media player's video cameras GPS units fancy dishwashers or even the networking router which is currently allowing you to enjoy this video at certain times though such as when dealing with heavy machinery a systems need to process requests quick and reliably we'll trumpets need to be flexible and easy to program for in these instances programmers turn to real-time operating systems a special variety of embedded OS which like their name suggests use specially written scheduling algorithms to ensure that vital information is processed in designated orders and within specified time windows instead of dynamically switching between processes based on resource availability they're very similar to other embedded OSS and that they are often developed in tandem with a dedicated piece of hardware intended to run them and they can be found on shipping stations robotic assembly lines and medical equipment in our vehicles and they're very useful for ensuring that our automatic emergency brake doesn't get stuck behind our seat-warmer activation in an OS processing queue as we Corrine directly towards a brick wall switching gears entirely there's another car thing for you there are operating systems that try to avoid normal hardware constraints by utilizing network connections to run virtual OSS like servers which can operate several systems simultaneously or systems that pool resources between even many more machines at a time the first style templated systems use hypervisors to create several virtual machine images on one extremely high-powered systems which users can then access via and network these machines appear from the outside to be their own dedicated pieces of hardware but they're not and a second style distributed systems combine and then allocate the resources of many physical machines even over the internet to solve problems like calculating protein folding to help fight diseases shameless plug for the Linus tech tips folding team by the way speaking of shameless plugs lynda.com lynda.com allows you to watch and learn from top experts who are passionate about teaching they have thousands of video courses that you can stream on-demand and learn on your own schedule and you can browse each course 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