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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
Should one design a classes from the outside (interfaces first) or inside (data first)? A: From the outside. A superior interface provides a simplified view which is express
Write a Program for Calculating Value of an Integer? For a clear understanding of recursive function we shall see an illustration for calculating value of an integer. main() {
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smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new technology, they are send
What is the use of default constructor? - It's a constructor that doesn't accept any parameters. - If there is no user-defined constructor for a class, compiler declares a d
write a program to calculate gross salary and net salary using hra da pf in c++
Program is to perform all the functions that are performed in a super bazaar: class stock { private: int itno; char itname[20]; char brname[20];
Define inheritance?
There is a pebble merchant. He sells the pebbles, that are used for shining the floor. His main duty is to take the length of the room’s sides. But he sometimes mistakes doing that
algorithem of compound interest
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