I want to know the answer to the following question:
The lower case letters caused a differ in the patter, what did this cause?
All the background I'm provided with is that "Locating the lowercase letters in columns 6 and 7 caused the characters to differ in bit pattern from the upper case by a single bit, which simplified case-insensitive character matching and the construction of keyboards and printers.". Is that enough to answer the question?