Universal product code.

(computing) The code or value generated by a hash function to represent some piece of data.

(computing, informal) The place where programmers develop source code (as opposed to conceptually distant areas such as design and marketing).

plural of telegraph code

Character encoding used to transmit information through telegraphy machines.

(compilers) Instructions that, when executed, have no effect on the running of the program. / (programming) A portion of source code that will never be executed as part of the running program.

plural of building code

A two-dimensional barcode, typically used to link to a website.

plural of coupon code

(computing, derogatory) Software code that has had many editors with conflicting styles, making it nearly impossible to maintain.