Sony D-5 Portable Compact Disc Player (1984) Personal Computers it was one of the

it was one of the first truly comfortable handheld units

Unlike earlier pagers that were purely silent

Launching in the heat of a high-stakes format war against HD-DVD

The Apple QuickTake 100

The General Electric Type P-3 was a premier line of portable electrical meters used from the early 1900s through the mid-20th century to precisely measure volts

Sony D-5 Portable Compact Disc Player (1984) Personal Computers it was one of theSony D 5 First Commercially Released Portable Compact Disc Player The Sony D 5 was a revolutionary milestone in personal audio, debuting in November 1984 as the worlds first portable CD player. At a time when home CD players were bulky, expensive luxuries reserved for audiophiles, Sony engineers were tasked with a strict cost cutting mission: design a player no larger than four stacked CD cases that regular people could afford. By shrinking the