Texas Instruments

• Desktop line

Model: TI-4000
Battery:                
Adapter:  110 volt 
Year: 1974
Chip: TMS0201,TMS0301 
Info:  DESKTOP line  

• Euro line

Model: TI-41
Battery: 9 volt
Adapter: 
Year: 1977
Chip: TMC0982
Info: EURO line 

• Desktop line

Model: TI-410
Battery:          
Adapter: 120 volt
Year: 1974
Chip: TMS0201 and TMSxxxx      
Info:

• Euro line

Model: TI-42 mba
Battery: BP7
Adapter: AC9900
Year: 1979
Chip: TMC1502
Info: EURO line Made in Iatly

• First lcd and Slimline lcd

Model: TI-44
Battery: 2 x LR44
Adapter: 
Year: 1983
Chip:  TPO322
Info:  first LCD and slimline LCD