| MD8212/B | Rochester Electronics | 248 | MD8212/B | 
                                                                    
                                        | MD82188/R | Rochester Electronics | 35,000 | MD82188/R | 
                                                                    
                                        | MD82289-8 | Rochester Electronics | 450 | 80X86 BUS ARBITER | 
                                                                    
                                        | MD8243/B | Rochester Electronics | 332 | I/O EXPANDER | 
                                                                    
                                        | MD82510/B | Rochester Electronics | 35,000 | SERIAL I/O CONTROLLER, 1 CHANNEL | 
                                                                    
                                        | MD8251A | Rochester Electronics | 35,000 | SERIAL I/O CONTROLLER, 2 CHANNEL | 
                                                                    
                                        | MD8251A/BXA | Rochester Electronics | 3,050 | 8251A - SERIAL I/O CONTROLLER, 2 | 
                                                                    
                                        | MD8253/BJA | Rochester Electronics | 35,000 | DUAL MARKED (5962-8752002JA) | 
                                                                    
                                        | MD8254/B | Rochester Electronics | 624 | PROG INTERVAL TIMER | 
                                                                    
                                        | MD8255A/B | Rochester Electronics | 35,000 | 8255A - PROG PERIPHERAL INTERFAC | 
                                                                    
                                        | MD8255A/BQA | Rochester Electronics | 35,000 | 8255A - PROG PERIPHERAL INTERFAC | 
                                                                    
                                        | MD8257 | Altera (Intel) | 3,677 | DMA CONTROLLER, MOS, CDIP40 | 
                                                                    
                                        | MD8259A/B | Rochester Electronics | 357 | INTERRUPT CONTROLLER, 8086; 8088 | 
                                                                    
                                        | MD8259A/BXA | Rochester Electronics | 171 | DUAL MARKED (5962-87510801XA) | 
                                                                    
                                        | MD8274/B | Rochester Electronics | 196 | 8274 - MULTI-PROTOCOL SERIAL CON |