Amstrad CPC character set

The Amstrad CPC character set (alternatively known as the BASIC graphics character set) is the character set used in the Amstrad CPC series of 8-bit personal computers when running BASIC (the default mode, until it boots into CP/M). This character set existed in the built-in "lower" ROM chip.

Source: Wikipedia — Amstrad CPC character set (CC BY-SA 4.0)