It seems like you are asking about several different symbols, so let’s break them down one by one:

1. **Slash (/)**:
– Also known as a forward slash, it is commonly used in writing to indicate alternatives (e.g., “and/or”), fractions (e.g., “1/2”), and in URLs for web addresses (e.g., “http://example.com”).
– In computing, it is used as a path separator in Unix-based systems (e.g., Linux, macOS).

2. **Percent (%)**:
– The percent sign is used to denote a percentage, which is a number or ratio expressed as a fraction of 100 (e.g., “50%”).
– In programming, it often serves as the modulus operator, which returns the remainder of a division operation (e.g., “5 % 2” yields “1”).

3. **Backslash (\)**:
– This symbol is used primarily in computing. In Windows operating systems, it is used as a path separator (e.g., “C:\Program Files”).
– In many programming languages, it serves as an escape character, allowing special characters to be included in strings (e.g., “\n” for a newline).

4. **Quotation Marks (“)**:
– Double quotation marks are used in writing to denote direct speech, quotations, and titles of certain works.
– In programming, they are used to define string literals (e.g., “Hello, World!”).

Each of these symbols has its specific use cases in various contexts, from writing and mathematics to programming and computing.