Python is a high-level, interpreted programming language known for its simplicity and readability. It was created by Guido van Rossum and first released in 1991. Python emphasizes code readability with its clear and concise syntax, which makes it an excellent choice for beginners and experienced programmers alike.

Computers calculate using binary digits, or bits, which are the smallest unit of data in a computer. These bits are represented by electrical signals, where 0 typically represents a low voltage and 1 represents a high voltage.

PHP (Hypertext Preprocessor) is a server-side scripting language designed primarily for web development but also used as a general-purpose programming language. It was originally created by Danish-Canadian programmer Rasmus Lerdorf in 1994 and has since evolved into a widely used and powerful tool for building dynamic web applications.