Texas Instruments [SEP] manufacturer
application-specific integrated circuits (ASICs)
The ASICs business develops more complex integrated-circuit solutions for clients on a custom basis. 
Divisions Other businesses Educational technology.
TI produces a range of calculators, with the TI-30 being one of the most popular early calculators. TI has also developed a line of graphing calculators, the first being the TI-81, and most popular being the TI-83 Plus (with the TI-84 Plus being an updated equivalent).
Many TI calculators are still sold without graphing capabilities. The TI-30 has been
denoting the manufacturer and flow class of the device (e.g. SN for Texas Instruments using a commercial processing, SNV for Texas Instruments using military processing, M for ST Microelectronics, DM for National Semiconductor, UT for Cobham PLC, SG for Sylvania). These codes are no longer closely associated with a single manufacturer, for example, Fairchild Semiconductor manufactures parts with MM and DM prefixes, and no prefixes.
- Two digits, where "74" denotes a commercial temperature range device and "54" denotes a military temperature