Texas Instruments

• TI 58 / 59 series

Model: TI-59 SCOT WARE CL 4
Battery: BP1 A
Adapter: AC9131 or DC9105
Year: 1978
Chip:  TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047         
Info: Scot Ware by Scotch Programs Inc., headquartered in Miami, Florida, introduced already in April 1978 with the CL4 cooling load calculation an early application programmed in a customized Solid State Software Module. Purchased but never arrived!! 

DATAMATH.ORG

• TI 58 / 59 series

Model: TI-59 WG&L Tax Planner
Battery: BP1 A
Adapter: AC9131 
Year: 1981
Chip:  TMC0501E TMC0591 CD2400 CD2401 TMC0573 TC5047         
Info: The tax planner application was developed in 1982 by Warren, Gorham & Lamont, Valhalla NY (WG&L) and programmed by Texas Instruments into a Solid State Software Module. Please notice the © 1983, 1984 date of the module. These modules were probably changed every year due to updates in the tax calculation process and WG&L introduced in 1985 with the incotax calculator a more flexible approach.

• Slanted LCD

Model: TI-60
Battery: 2 x LR44
Adapter: 
Year: 1987
Chip:  CD4815-CD4614
Info:  slanted LCD  generation

• Galaxy line

Model: TI-65
Battery: 2 x LR44
Adapter: 
Year: 1988
Chip: CD4805 , CD4806               
Info:The TI-65 Technical Analyst is a quite interesting calculator within the Galaxy-line.

• Galaxy line

Model: TI-66
Battery: 2 x LR44
Adapter: 
Year: 1984
Chip: Toshiba T6875, TC5514A               
Info: GALAXY line