Sony, aiwa Walkman In the early 1990s, all kinds of cassette players became popular in China, and sony and aiwa players were even more whatsapp Database popular. Figure 3: aiwa brand Walkman Most of this type of Walkman do not have the function of recording, but are only used as cassette playback. From the control buttons at the top of the picture above, it can be vaguely seen that there are only four buttons. In fact, they are: play, rewind, fast forward, and exit (stop). The exit (stop) button is whatsapp Database the big button at the front. Indeed, for a cassette player, the "pause" button does not seem to have any effect, and the pause function can be completely handled by the exit (stop) button.
The era of CD playback At the end of the twentieth century, China seems to have entered a short-lived CD Walkman era, although this seems to be whatsapp Database more than ten years later than the birth of the sony D50 (the first CD Walkman). Figure 4: Sony CD Walkman (1) These are two CD Walkmans from different eras of Sony. For music playback, the ability to pause is always required. During the cassette period, the operation of the pause is realized by the exit (stop) button, and whatsapp Database during the CD period, there must be a pause button. It can be found that, with the advancement of technology, the change of button style makes it possible to integrate the "play" and "pause" buttons.
By the way, it can be found that the latter CD Walkman has no obvious stop button, and the stop function has been replaced by the "power" button, the "exit" button whatsapp Database and the long-pressing "play" button. The definition here is very clear, "stop" represents the complete termination of the current task. In fact, the so-called "design only when needed" is also a part of whatsapp Database concise design, its purpose is not to bring more cognitive burden to users, and it is more convenient for users to use. This doesn't mean just reducing the button.