Which OS consume least memory and HD space

In summary: Real-time operating systems (RTOS) are designed to assure correctness, deterministic performance, and low latency of critical tasks in embedded systems. Many popular RTOSes are available for free and open source software.
  • #1
Silicon Waffle
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I am curious as to which OS and its siblings (e.g Linux={Fedora, Mint,...}) consume the least memory and HD space but sure are still perfectly functional after installed.
Thanks a lot.
 
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  • #3
Completely functional does not have to mean every extra possible add on command and driver - ARCH ARM Linux is meant for tiny hardware configurations, like your refrigerator "brain" or the ignition system in your car. Extreme examples run a functioning kernel with just a few device drivers that occupies less than ~50MB, with addressable memory (space to run code) at about 30-50% of that value. Check out a Raspberry Pi 2 with really expanded memory -- 1.0 GB. - They are about $US40 I think.

So you may want to reconsider what makes a good 'completely functional' definition. Just like full blown Debian or Solaris? OR something else. Programming the fridge, maybe.

http://www.raspberrypi.org/raspberry-pi-2-on-sale/
 
  • #4
jim mcnamara said:
Check out a Raspberry Pi 2 with really expanded memory -- 1.0 GB. - They are about $US40 I think.
So you may want to reconsider what makes a good 'completely functional' definition. Just like full blown Debian or Solaris? OR something else. Programming the fridge, maybe.

http://www.raspberrypi.org/raspberry-pi-2-on-sale/

I'm converting some SPI kernel device drivers (daq_gert driver for the comedi library) written for the original RPi on a RPi 2. The difference in compile speed of the 1GB models is amazing with 4 cores. If you need a full blown embedded system with Raspbian that can be stripped down to run on something even smaller it's a great choice.
 
  • #5
I'd say go with Linux Ubunto. Not only is it good and many people use it, but it's free and really user friendly. :)
 
  • #6
Technically MS-DOS would fit your criteria, but I think you'll have trouble with compatibility with the programs you want to run. :-p
 
  • #7
Lubuntu (the lightweight version of Ubuntu), Bodhi Linux, Peppermint Linux come to mind. They all consume less than 200 Mb of RAM on boot up, have several programs pre-installed (is that what you mean by being functional?) and if you need other programs, it's very easy to install them.
 

FAQ: Which OS consume least memory and HD space

1. What is the most lightweight operating system in terms of memory and hard drive space?

The most lightweight operating system in terms of memory and hard drive space is generally considered to be Linux, specifically distributions such as Puppy Linux, Tiny Core Linux, or Damn Small Linux. These operating systems have minimal system requirements and can run efficiently on older or low-spec computers.

2. How does the operating system affect memory and hard drive space usage?

The operating system is responsible for managing and allocating memory and hard drive space for various tasks and programs. Some operating systems are more efficient in their resource management, leading to lower memory and hard drive space usage.

3. Are there any other factors that can impact memory and hard drive space usage besides the operating system?

Yes, there are other factors that can impact memory and hard drive space usage, such as the number and type of programs running, the amount of data being stored, and the hardware specifications of the computer. These factors can vary greatly and may have a bigger impact on resource usage than the operating system itself.

4. Is it possible to customize an operating system to consume less memory and hard drive space?

Yes, it is possible to customize an operating system to consume less memory and hard drive space. This can be done by removing unnecessary programs and features, optimizing system settings, and using lightweight alternatives for certain tasks. However, it is important to note that this may also impact the functionality and compatibility of the operating system.

5. Which operating system is the best choice for conserving memory and hard drive space?

The best choice for conserving memory and hard drive space may vary depending on personal preferences and specific needs. However, in general, Linux distributions and lightweight versions of popular operating systems (such as Windows 10 Lite or macOS Xubuntu) are good options for those looking to conserve resources.

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