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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
Semaphore is used to synchronize processes. whereas mutex is used to give synchronization among threads running in the similar process.
what is c language
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Write two different arrays. Store the names in it and then compare if both the names entered by the user are the same.
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Write a function that has two int parameters num and n, and returns TRUE when the nth bit in num is 1, otherwise FALSE. This function should use the function in the above problem.
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Program to calculate tax: float tax (float) ; int main() { float purchase, tax_amt, total; cout cin >> purchase
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