0x1E55

0x1E55 is a hexadecimal numeral commonly used in computing to denote an unsigned integer value. The 0x prefix signals that the digits that follow are in base 16, a convention used by many programming languages such as C, C++, Java, JavaScript, and Python.

Numerical value and representation: The hex value 1E55 converts to decimal 7765. In binary, it is 0001 1110 0101 0101 (grouped as four-bit nibbles). As a 16-bit quantity, its two-byte representation is 0x1E followed by 0x55. When stored in memory, endianness matters: big-endian systems would place the bytes in the order 1E 55, while little-endian systems would store them as 55 1E.

Context and usage: Hex literals like 0x1E55 are commonly used to express bit patterns, memory addresses, or constant values in source code. They appear in low-level programming, embedded systems, and systems where precise control over individual bits is important. They may also be involved in specifying color information in certain 16-bit color formats, or as part of data in binary files, network packets, or debugging outputs. The interpretation of 0x1E55 depends on the surrounding context and the data format being used.

Related concepts: Understanding hex literals requires familiarity with the hexadecimal numeral system, byte order (endianness), and typical applications of bitwise operations, memory addressing, and data encoding in software and hardware.