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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
A: Use operator overloading to present a friend left-shift operator, operator #include class Fred { public: friend std::ostream& operator ... private: int i_; // onl
P o i n t e r d e c l a r a t i o n f o r d a t a m e m b e r : M e t h o d 1 : i n t M : : * p x ; / / T h i s
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Q-What is your reaction to following line of code? delete this; A: This is not a good programming Practice. A good programmer will insist that you must absolute
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