![Texas Instruments TI 4100 NAVSTAR Navigator GPS receiver - National Oceanic and Atmospheric Administration, Washington, DC USA Stock Photo - Alamy Texas Instruments TI 4100 NAVSTAR Navigator GPS receiver - National Oceanic and Atmospheric Administration, Washington, DC USA Stock Photo - Alamy](https://c8.alamy.com/comp/F0FPXT/texas-instruments-ti-4100-navstar-navigator-gps-receiver-national-F0FPXT.jpg)
Texas Instruments TI 4100 NAVSTAR Navigator GPS receiver - National Oceanic and Atmospheric Administration, Washington, DC USA Stock Photo - Alamy
![TI 4100 NAVSTAR Navigator GPS receiver, National Air and Space Museum - Washington, DC USA Stock Photo - Alamy TI 4100 NAVSTAR Navigator GPS receiver, National Air and Space Museum - Washington, DC USA Stock Photo - Alamy](https://c8.alamy.com/comp/E62MAF/ti-4100-navstar-navigator-gps-receiver-national-air-and-space-museum-E62MAF.jpg)
TI 4100 NAVSTAR Navigator GPS receiver, National Air and Space Museum - Washington, DC USA Stock Photo - Alamy
![dv@post.lurk.org on Twitter: "TI4100 Navstar GPS receiver, built in the early 1980s, recorded data onto cassette tapes: https://t.co/SDqvfz52za" / Twitter dv@post.lurk.org on Twitter: "TI4100 Navstar GPS receiver, built in the early 1980s, recorded data onto cassette tapes: https://t.co/SDqvfz52za" / Twitter](https://pbs.twimg.com/media/DLPW6ClVYAAu9pS.jpg:large)