| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:mainframe_computer
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:architecture
                                    
                                 | 
                                
                                    
                                        
                                            
                                            stack machine
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:designedFor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            business data processing
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:influenced
                                    
                                 | 
                                
                                    
                                        
                                            
                                            later Burroughs mainframes
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:introduced
                                    
                                 | 
                                
                                    
                                        
                                            
                                            1963
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:manufacturer
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Burroughs_Corporation
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:marketedAs
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Burroughs_Large_Systems
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:notable_for
                                    
                                 | 
                                
                                    
                                        
                                            
                                            security features
                                        
                                        
                                         
                                    
                                        
                                            
                                            early use of virtual memory
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:notableFeature
                                    
                                 | 
                                
                                    
                                        
                                            
                                            support for high-level languages
                                        
                                        
                                         
                                    
                                        
                                            
                                            descriptor-based memory management
                                        
                                        
                                         
                                    
                                        
                                            
                                            hardware-enforced data types
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:notableModel
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:B6800
                                        
                                         
                                    
                                        
                                            
                                            B6500
                                        
                                        
                                         
                                    
                                        
                                            
                                            B6700
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:operatingSystem
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:MCP_(Master_Control_Program)
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:predecessor
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Burroughs_B5000
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:processor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            stack-based CPU
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:programmingLanguage
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:COBOL
                                        
                                         
                                    
                                        
                                            gptkb:ALGOL
                                        
                                         
                                    
                                        
                                            gptkb:FORTRAN
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:region
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Europe
                                        
                                         
                                    
                                        
                                            gptkb:United_States
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:successor
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Burroughs_B7000_series
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:used_in
                                    
                                 | 
                                
                                    
                                        
                                            
                                            banks
                                        
                                        
                                         
                                    
                                        
                                            
                                            insurance companies
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Burroughs_D100000
                                        
                                         
                                    
                                        
                                            gptkb:Burroughs_D60000
                                        
                                         
                                    
                                        
                                            gptkb:Burroughs_D80000
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            7
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Burroughs B6000 series
                                        
                                        
                                         
                                    
                                 |