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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
Define Polymorphism? A: Polymorphism let a client to treat distinct objects in the similar way even if they were developed from distinct classes and exhibit different behaviors.
Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b.
C++ improves on many of C's features and provides object-oriented programming capabilities used for software production, quality and reusability. C++ was developed by Bjarne Strons
A string is said to be "Beautiful"€, if it contains only non repetitive alphabets
A: this is a procedure during exception handling while the destructor is called for all local objects in the stack among the place where the exception was thrown & where this is ca
What is MIME? MIME - Multi-purpose Internet Mail Extensions. MIME types signifies a standard way of classifying file types over Internet. Browsers and Web servers have
Returning References from Functions Just as in passing the parameters by reference, returning a reference also doesn't return back a copy of the variable , instead an alias is
A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t
Described the "Named Constructor Idiom"?
(a) Verify the values of the resistors with the following colour coding: (i) red-red-orange-silver (ii) orange-orange-black-blue-green (b) What is the value of a resistor
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