Data Representation in Binaries

When you reverse engineer, you're looking at a program's raw binary form. This means understanding how all kinds of data—numbers, text, and more—are stored as sequences of bits and bytes.

A bit is the smallest unit, either 0 or 1. Eight bits make a byte. Everything a computer does, from calculations to displaying text, relies on these fundamental units.

Integers are whole numbers. They can be signed (positive or negative) or unsigned (only non-negative). The number of bytes used determines the range of values an integer can hold.

• Byte (8-bit): 0 to 255 (unsigned) or -128 to 127 (signed).
• Word (16-bit): Up to 65,535 (unsigned).
• DWord (32-bit): Up to ~4 billion (unsigned).
• QWord (64-bit): Much larger numbers!