Types of Operating Systems as Fast As Possible
Techquickie
·Techquickie
·2016-05-06
·
938 words · ~4 min read
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most of us are likely aware of the major multitasking operating systems or os's
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that manage our computers these complex pieces of software are designed for
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powerful hardware and easily capable of running many programs at once since
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their OS can prioritize Hardware task
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requests known as system calls and allocate them processing time or memory
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space as needed and chances are you've already chosen a favorite one but what
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makes things like pocket size devices tick anyhow or what about the unique
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electronic systems like the ones found in cars or even the hive-minded robots
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that will eventually defeat Humanity don't these things need some sort of
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operating system too yes they do and they actually differ from PC os's in a
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few key ways we'll start with the ones designed for battery powered devices
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like phones and tablets these might seem like they should be very different from
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a desktop OS but thanks to the incredible performance of modern mobile
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processors top mobile os's including iOS
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and Android are multitasking operating systems capable of balancing multiple
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background tasks and user input with Grace and Poise usually but it hasn't
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always been this way in the early days of mobile Computing battery life and
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performance were much less plentiful than they are today so the embedded
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operating systems were King examples of which being Windows CE and pomos they
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had limited functionality and could only handle one task at a time so by today's
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standards they'd be considered pretty useless on a phone but my grandpy tells
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me they were essential for these strange devices called
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pdas but seriously even though the days of pocket PCS are behind us embedded
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os's are still essential for many other
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low powerered limmited functionality devices like media players video cameras
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GPS units fancy dish washers or even the
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networking router which is currently allowing you to enjoy this video at
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certain times though such as when dealing with heavy machinery A System's
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need to process requests quickly and
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reliably Will trump its need to be
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flexible and easy to program for in these instances programmers turn to
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realtime operating systems a special
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variety of embedded OS which like their name suggests use specially written
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scheduling algorithms to ensure that Vital Information is processed in
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designated orders and within specified time Windows instead of dynamically
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switching between processes based on resource availability they're very
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similar to other embedded os's in that they are often developed in tandem with
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a dedicated piece of Hardware intended to run them and they can be found on
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shipping stations robotic assembly lines and medical equipment in our vehicles
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and they're very useful for ensuring that our automatic emergency breake
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doesn't get stuck behind our seat warmer activation in an OS processing que as we
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carine directly towards a brick wall Switching gears entirely there's another
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car thing for you there are operating systems that try to avoid normal
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Hardware constraints by utilizing network connections to run virtual os's
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like servers which can operate several systems simultaneously or systems that
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pool resour between even many more machines at a time the first style
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templated systems use hypervisors to create several virtual machine images on
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one extremely high-powered systems which users can then access via a network
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these machines appear from the outside to be their own dedicated pieces of
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Hardware but they're not and a second style distributed systems combine and
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then allocate the resources of many physical machines even over the internet
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