usb, short for Universal Serial Bus, is an industry standard developed by USB Implementers Forum Inc that defines the cables, connectors and communications protocols used in a bus for connection, communication and power supply between computers and electronic devices.

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How does a USB device whether know to draw 500mA, 1A or 2.1A from a computer USB port?

I'm having some issues with my Nexus 7 drawing just 500mA from a USB port able to supply 2.1A (test with my iPad). Details in this question. However, there is a comment posted "The Nexus obviously ...
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1answer
235 views

Developing a cross-platform interface for writing to hardware like PicKit OR USB over the web?

I thought long and hard on weather to put this question in programmers or stack overflow. Please let me know if this is not the right place and I will post it to SO. My friend and I am developing a ...
0
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2answers
729 views

How are interrupts implemented in practice? [closed]

Consider an USB device that is receiving data over a wireless network and an application running on the PC is reading this data. Now, on many languages (consider C# DataReceived), we have event ...
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3answers
638 views

Best Way to Access Hardware per COM Serial Port over USB Adapter

We are starting a total new Branch at our firm. I am usually developing database interfaces or internal server/client applications/tools for our company, but I never had to do something with hardware. ...
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1answer
232 views

Determine file type and then decompile to edit source [closed]

I'm new to this type of programming, but proficient in web development... looking to expand my palette a little. I have this file. In Windows 7 the file properties window claims its a 'system file', ...