TCS Senior Software Developer Interview Questions, Process, and Tips

UART, SPI, and I2C are communication protocols used in embedded systems. Static and extern are keywords in object-oriented programming.

• UART stands for Universal Asynchronous Receiver/Transmitter and is used for serial communication between devices.

• SPI stands for Serial Peripheral Interface and is used for synchronous communication between devices.

• I2C stands for Inter-Integrated Circuit and is used for communication bet...read more

printf is a function in C language used to print the output whereas echo is a command in shell scripting used to display the output.

• printf is a function in C language while echo is a command in shell scripting

• printf can format the output while echo cannot

• printf is faster than echo

• printf can print to a file while echo cannot

• printf requires a format string while echo does not