Shift In
Symbol Meaning
The ASCII Normal Mode (Shift In) symbol, also known as the uppercase mode, was used in computer terminals, printers, and text processing systems. Its aim was to return the default set of characters after switching to an alternative character set using the Shift Out symbol ␎ Shift Out. This way the Shift Out and Shift In symbols worked together, allowing devices to switch between two sets of characters simultaneously.
As for modern computer systems and applications, the U+000F symbol is rarely used there. It happens so because there are other mechanisms and encodings that perform the function of switching between different sets and languages. For example, Unicode.
Like other control symbols, this one has no visible representation and doesn't occupy a lot of space on screen or in typed text. However, there is a separate symbol in Control Pictures2400–243F representing the graphical image of Shift In as the abbreviation SI — ␏.
The symbol “Shift In” is included in the “C0 controls” subblock of the “Basic Latin” block and was approved as part of Unicode version 1.1 in 1993.
Synonyms
SI.
| Unicode Name | Shift In |
| Unicode Number | |
| HTML Code | |
| CSS Code | |
| Plane | 0: Basic Multilingual Plane |
| Unicode Block | Basic Latin |
| Unicode Subblock | C0 controls |
| Unicode Version | 1.1 (1993) |
| Keyboard shortcut | ^O |
| Type of paired mirror bracket (bidi) | None |
| Composition Exclusion | No |
| Case change | 000F |
| Simple case change | 000F |
| scripts | Common |
| Encoding | hex | dec (bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | 0F | 15 | 15 | 00001111 |
| UTF-16BE | 00 0F | 0 15 | 15 | 00000000 00001111 |
| UTF-16LE | 0F 00 | 15 0 | 3840 | 00001111 00000000 |
| UTF-32BE | 00 00 00 0F | 0 0 0 15 | 15 | 00000000 00000000 00000000 00001111 |
| UTF-32LE | 0F 00 00 00 | 15 0 0 0 | 251658240 | 00001111 00000000 00000000 00000000 |