نعم كلامك وكلام الأستاذ جعفر صحيح، وهذا لا يعني أنه لم يكن خلاف ما هو عليه الآن فقد يكون ما يكروسوفت طورت عملية التخزين.
In MS Access, text fields store the exact length of the entered text, up to the defined field size. For Short Text fields (formerly Text), the maximum length is 255 characters, according to Microsoft Support. For Long Text fields (formerly Memo), the storage capacity is much larger, up to 2^30-1 bytes, but can be limited in Access web apps by setting a character limit according to Microsoft Support.
Here's a more detailed breakdown:
Short Text (formerly Text):
The default size is 255 characters. according to DePaul University
You can adjust the Field Size property to specify a shorter length (from 1 to 255).
Access only stores the characters entered, not unused space.