"Does it mean if I write or read EEPROM 100,000 times "

The above statement to make some sense will need many qualifiers.

To me it means just these :

1. It has an endurance that runs into 5 digits and occasionally might go into 6 digits.

2. I should not use this memory for storing data that is going to be called, altered and written back every second or less than a second.

3. I CAN use this memory to store user configuration data that does not change every hour or so.

And so on. Thus the 100,000 can at best be treated as a guideline to decide how frequently you access that.

Actually our friend Kai has addressed this issue ( at a molecular level !) in great detail in a thread about 2 months back I think. Search and you will find it.

Raghu