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In POS system, cashier computer connect to printer using serial rs232 usb or cable. We need to capture data from that connection, and parsing the data to get total amount for every transaction at POS, then send it to database server via internet. if require, using raspberry or arduino, also gsm modem to send the data. While capture the data, the POS pc still print bill normally.
Skills required are C Programming, Electronics, Embedded Software, Microcontroller, Python
Difference between Echo and print statement. print()and echo() are language constructs in PHP, both are used to output strings. Both statements are of almost same Speed. ech
how to write the code for operation research
You're going to simulate a metropolitan subway train. The train system will start out at Station #1, or Home Station, and will service multiple stations along its route.
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