BLOB (binary large object) 1) In computers, a BLOB (binary large object), pronounced BLAHB and sometimes spelled in all lower case, is a large file, typically an image or sound file, that must be handled (for example, uploaded, downloaded, or stored in a database) in a special way because of its size.
1 You can also find it in the U.S. Bank routing number chart below.  Your account number (usually 10-12 digits) is specific to your personal account. It's the second set of numbers printed on the bottom of your checks, just to the right of the bank routing number. You can also find your account number on your monthly statement.
These numbers represent the location of your bank branch, where you first opened the account. The next 3 numbers is your bank institution number. This indicates the bank where the account is at (CIBC, BMO, TD, RBC, Scotia Bank, HSBC, etc.) The remaining numbers is the account number.