Questions tagged as 'sistema-operacional'

Tagged questions
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Problems installing jdk7 or 8 on MAC OS 10.6.8 - Snow Leopard

I'm a beginner in Java, and I have a MacBook with Mac OS X 10.6.8 better known as Snow Leopard. I'm trying to install jdk and Netbeans on it and I can not. It tells me that I need MAC OS version 10.7. I have tried all versions of jdk 8...
asked by 05.06.2014 / 20:25
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Why does the operating system use SWAP when it still has RAM [closed]

I learned that virtual memory (SWAP) was only used when RAM had reached its maximum capacity (or near). But, I realize that it is not quite like this, according to this image that I took of the performance of my computer: Why does thi...
asked by 07.10.2015 / 19:32
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Isolate processor to run only my program

How can I isolate the processor to run only my program in C? It is more a didactic and academic question passed by my teacher of AI. He asked us to run millions of real-number sum operations, and take the time the processor took to run the...
asked by 14.09.2017 / 02:19
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What are file and directory descriptors?

I am studying módulo os of the Python default library and I realize that in many cases a function is allowed to receive as a parameter descritor de arquivo ou diretório some examples are:    os.fchdir(fd)   Change...
asked by 26.10.2018 / 05:04
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How to get server operating system information? [closed]

How can I get the operating system from my server? For example, some method to know if the operating system of the production environment is in Linux, Windows, etc ...     
asked by 07.08.2017 / 23:33
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Any generated exe can be executed or depends on the platform that was made? [closed]

I took some files from the DOS operating system with the .exe extension and ran them in a virtual machine and a DOSBOX emulator. Then I tested them on a physical machine. The result between both: physical machine, virtual machine and "mac...
asked by 18.02.2018 / 01:57
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How does the operating system distribute the processor through the various programs?

In the current operating systems there is the possibility of having several programs running. It is the job of the operating system to ensure that all programs have the opportunity to perform work (processing code instructions). Everything wo...
asked by 02.12.2016 / 13:40
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Interruptions operating system

Someone can explain this IDT [0x21] in the indexes of these structs Why does 0x21 tell us? struct IDT_entry IDT[IDT_SIZE]; unsigned long keyboard_address; unsigned long idt_address; unsigned long idt_ptr[2]; /* populate IDT entry of keyboa...
asked by 14.12.2015 / 18:14
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My site loads different pages on different Operating Systems

I'm going through a very strange problem. When using Windows (Windows 7), my page loads as expected: @extends + index.php In Linux (Ubuntu 13.10) he is redirecting me to the / user / login route for no reason: @extends + login.php...
asked by 19.02.2014 / 20:25
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How does Memory Management work with virtual memory?

Well, I'm doing the Operating Systems discipline, and there's been some doubt as I read memory management. From what I have read, one way to abstract memory is to use base and limit registers, where for each program in physical memory its sta...
asked by 26.10.2016 / 02:20