The first extensive telegraph network was the visual telegraph. In 1791 the Frenchman Claude Chappe used a visual network (which consisted of a telescope, a clock, a codebook, and black and white panels) to send a message ten miles.
Page Content. The School Performance Profile provides the public with a comprehensive overview of student academic performance in every Pennsylvania public school building, including traditional public schools, charter schools, cyber charter schools and career and technology centers.
Summary of the Interim Performance Management System. The DON Interim Performance is a two-level performance management system under 5 U.S.C., Chapter 43. Employees under the system will receive an annual rating of record of either âAcceptableâ or âUnacceptableâ.