The term "period tab" is not a standard or widely recognized technical term. It's possible you might be referring to one of the following:
1. Period as a Tab Character:
This is the most likely interpretation. In some contexts, especially in older systems or specific applications, a period (.) might be used as a tab character. This means that when you type a period, the cursor jumps to the next tab stop instead of inserting the period itself.
Example:
Imagine you are using a text editor that uses periods as tab characters. You type:
"This is a sentence. With periods used as tabs."
The output would look like:
"This is a sentence With periods used as tabs."
Note: This is not a common practice, and most modern systems and applications use the standard tab character (represented by the "Tab" key on your keyboard).
2. Period in a Tab Name:
You might be referring to a tab in a software application with "period" in its name. This is a broad interpretation, as many applications have tabs with various names, and some might include "period" as a part of the name.
Example:
In a spreadsheet application like Microsoft Excel, you might have a tab named "Sales Period" or "Financial Period."
Without more context, it's impossible to provide a specific answer. Please clarify what you mean by "period tab" to get a more precise explanation.