Ever noticed the black rings on a headphone jack? Learn what they mean, how they affect audio, and why some jacks have more than others.

Howdy, Seems an odd one to me. I have a Sony Z4 tablet. Plug in my headphones, music plays no problem. Plug into one of a couple portable speakers, music plays no problem. Plug into a trs cable ...

TRS is also VERY common for balanced mono connections, in fact in any kind of sound reinforcement, studio, etc type of gear, if it has a phone jack on it, there is a very good chance it's balanced ...

CPU: 1.77 MHz Z-80A RAM: 4K-16K Price: $599.95 with monitor (about $2,354 today, adjusted) The computer that launched the TRS-80 brand remains notable as of the famous trio of first consumer PCs ...

W hen the TRS-80 — a personal computer from Tandy that would be sold via their RadioShack stores, hence TRS — went on sale on Aug. 3 in 1977, computers weren’t exactly new.