Before revision: History The earliest EFB precursors came from individual pilots from FedEx in the early 1990s who used their personal laptops where are referred as Airport Performance Laptop Computer to carry out aircraft performance calculations on the aircraft (this was a commercial off-the-shelf computer and was considered portable).
After revision: History The earliest EFB precursors came from individual pilots from FedEx in the early 1990s who used their personal laptops , referred to as Airport Performance Laptop Computers, to carry out aircraft performance calculations on the aircraft (this was a commercial off-the-shelf computer and was considered portable).