0x200x7F

The hexadecimal range 0x20 to 0x7F denotes a common subset of characters in ASCII, the 7-bit character encoding that underpins much of early computing and modern text handling. In ASCII, code points 0x00 through 0x1F and 0x7F are reserved for control characters, while 0x20 through 0x7E are printable characters.

Within the 0x20–0x7E range, characters include the space (0x20), digits (0x30–0x39), uppercase letters (0x41–0x5A), lowercase letters (0x61–0x7A), and punctuation symbols such as 0x21 (!), 0x2C (,), and 0x7E (~). The code point 0x7F (DEL) is a control character historically used to delete a character on paper tape and is not printable.

The 0x20–0x7F range is central to many text-processing tasks because it covers the printable ASCII set. It is also the portion of ASCII that maps directly to the same code points in Unicode (U+0020 to U+007F), making it a universal subset for interoperability between systems that use ASCII or ASCII-compatible encodings.

Because ASCII is 7-bit, values beyond 0x7F require extended encodings (such as ISO/IEC 8859-1 or UTF-8). In UTF-8, the 0x20–0x7F range encodes as a single byte, preserving compatibility with ASCII text in multilingual environments.

In summary, 0x20–0x7F represents the printable ASCII characters plus the DEL control character, forming a foundational block for text representation in computing and data transmission.