Environment Division - Format 1 ENVIRONMENT DIVISION. 2? 2 CONFIGURATION SECTION. 2.1 %Configuration Section Paragraphs 3? 3 INPUT-OUTPUT SECTION. 3.1 %Input-Output Section Paragraphs Configuration Section Paragraphs 1? SOURCE-COMPUTER. 1.1? source-computer-entry 2? OBJECT-COMPUTER. 2.1? object-computer-entry 3? SPECIAL-NAMES. 3.1? special-names-entry Input-Output Section Paragraphs 1 FILE-CONTROL. 2+ 2 file-control-entry 3? I-O-CONTROL. 3.1? 3.1+ 3.1 i-o-control-entry