SECAM, also written SÉCAM (Séquentiel couleur à mémoire, French for "Sequential Color with Memory"), is an analog color television system first used in France. A team led by Henri de France working at Compagnie Française de Télévision (later bought by Thomson, now Technicolor) invented SECAM. It is, historically, the first European color television standard.
Read more about SECAM: Technical Details, History, Problems With The Standard, Countries and Territories That Use SECAM, Migration From SECAM To PAL, Migration From SECAM To NTSC, Migration From SECAM To DVB-T