All Questions
Tagged with io operating-systems
10
questions
1
vote
1
answer
125
views
Writing keypresses to SSD & wear leveling
I am planning to write an application that tries to write as much to file as possible as to never lose any significant amount of data. It will write every key stroke including micro or even nano-...
- 1,878
1
vote
1
answer
123
views
How is I/O encryption handled in modern systems? [closed]
First: I've struggled with the question on which stackexchange to post this question since it involves OS knowledge, hardware knowledge but probably also other CS fields. Suggestions for a better ...
- 137
2
votes
0
answers
88
views
Making MsMpEng.exe disk access be nice
MsMpEng.exe disk accesses are making my system unusable. Since this process is critical for system security, it is unreasonable to disable it. Moreover, as it is provided by the OS vendor, and ...
- 193
0
votes
1
answer
131
views
Can Operating Systems handle shift, ctrl and alt key signals separate from the keyboard?
The basic problem is this: I have a mini keyboard I'm using for a Raspberry Pi project, and since there is only one shift, ctrl and alt key apiece, that means combinations on the left side of the ...
- 137
-2
votes
2
answers
70
views
Are interrupts used to signify that output is ready or input has completed? [closed]
Operating System Concepts says:
During I/O, the various device controllers raise interrupts when they
are ready for service. These interrupts signify
that output has completed, or
...
- 17.3k
1
vote
1
answer
682
views
Are Kernels hardware specific?
From my understanding, the Kernel provides the link between software and hardware, and therefore the Kernel must direct system calls being made by OS applications, correct? So would different I/O ...
- 113
-1
votes
1
answer
92
views
why does asynchronous I/O require buffering?
I read in some introductory lecture notes on I/O and operating systems that "asynchronous systems require buffering". Why is it so please?
Cheers
- 103
0
votes
0
answers
15
views
Multiple interaction controls on a single computer
I wonder if there is a way to interact with a single computer using two interaction controls.For example,two people must be able to interact with two different application simultaneously on the same ...
- 101
0
votes
2
answers
96
views
How is it possible for me to hear the audio of multiple different videos on my computer? [closed]
I am reading this book and so far, being in chapter 3, I understand that multiprogramming and multiprocessing allows for faster execution of multiple existing processes/threads. I am reading into all ...
- 153
2
votes
2
answers
910
views
Why is buffered I/O maximum twice as fast as unbuffered I/O?
This was a question on an Operating Systems exam I had recently. I couldn't find a real clear answer through Google so I thought I'd ask the geniuses here :)
Two things to take into account: there's ...
- 298