Proof of Work vs Proof of Stake – Which Is Better? Blockchain technology relies on consensus mechanisms to validate transactions and keep networks secure. Among the most popular mechanisms are Proof of Work (PoW) and Proof of Stake (PoS). Both serve the same purpose—maintaining trust in decentralized systems—but they work in very different ways. So, which one is better? Let’s break it down. What Is Proof of Work (PoW)? Proof of Work is the original consensus mechanism introduced by Bitcoin. In PoW: * Miners compete to solve complex mathematical puzzles * The first to solve it validates the block * The winner earns block rewards and transaction fees Popular PoW Blockchains * Bitcoin (BTC) * Litecoin (LTC) * Dogecoin (DOGE) Advantages of Proof of Work ✅ Highly secure and battle-tested ✅ Extremely decentralized ✅ Resistant to network attacks Disadvantages of Proof of Work ❌ High energy consumption ❌ Requires expensive hardware ❌ Slower transaction speeds PoW is often criticized for its en...
FUNCTIONS
C enables its programmers to break up a program into segments commonly known as functions, each of which can be written more or less independently of the others. Every function in the program is supposed to perform a well-defined task. Therefore, the program code of one function
is completely insulated from the other functions.
Every function interfaces to the outside world in terms of how information is transferred to it and how results generated by the function are transmitted back from it. This interface is basically specified by the function name. For example, look
at below figure which explains how the main() function calls another function to perform a well-defined task.
In the figure, we can see that main() calls a function named func1(). Therefore, main() is known as the calling function and func1() is known as the called function. The moment the compiler
encounters a function call, the control jumps to the statements that are a part of the called function.
After the called function is executed, the control is returned to the calling program.
The main() function can call as many functions as it wants and as many times as it wants. For example, a function call placed within a for loop, while loop, or do–while loop may call the same function multiple times till the condition holds true.
Not only main(), any function can call any other function. For example, look at below figure which shows one function calling another, and the other function in turn calling some other function.
