0xABCD

0xABCD is a commonly encountered string in technical material that represents a hexadecimal literal. The prefix 0x signals base-16 notation, and the digits ABCD denote the values 10, 11, 12, and 13. As a 16-bit value, 0xABCD corresponds to the decimal number 43981.

In programming and documentation, 0xABCD is frequently used as a generic placeholder or example data to illustrate operations such as shifts, masks, comparisons, or encoding tasks. Its short length makes it convenient for compact tutorials while avoiding reference to real data.

In blockchain and smart-contract contexts, 0xABCD can appear as a dummy address or transaction fragment in tutorials. Real Ethereum addresses use 40 hexadecimal characters after the 0x prefix, so 0xABCD by itself is not a valid address. Using a short form helps learners differentiate sample identifiers from actual network addresses.

The symbol also serves in discussions of endianness and serialization, where 0xABCD may appear as the initial value in a test sequence or as a representative example of a 16-bit field. Because hexadecimal literals are language- and platform-dependent, 0xABCD may be written in different casings in code, but the underlying meaning remains that it is a hexadecimal number.

Overall, 0xABCD functions primarily as a concise, non-specific example used to teach or document concepts related to hexadecimal notation, numeric literals, and data representation without tying the discussion to a particular real-world entity. See also: hexadecimal, 0x prefix, memory address, Ethereum address, sample data.