Reactivelist Obsolete Source List

Posted on 15.09.2019 by admin

We live in an era of accelerating technological change, and with it, accelerated rates of obsolescence. Here are 22 antiquated technologies that are actually quite young — and which people thought would be around for much longer than they were.

Reactivelist Obsolete Source List Example
Dynamicdata Whenpropertychanged

1. Folding Maps

The advent of GPS has all but killed the humble printed map. Just make sure you have one of these handy for after the apocalypse. Image: Paper Pastries.

2. Dial-up Modems

Local data model. In the local-only approach, all developers must use the same file system. Revision Control System (RCS) – stores the latest version and backward deltas for fastest access to the trunk tip compared to SCCS and an improved user interface, at the cost of slow branch tip access and missing support for included/excluded deltas. Oct 13, 2016 In my last post I talked about ReactiveList ReactiveUI Goodies. Note that if the source Observable has emitted no items since the last time it was. UI output (deprecated) reactiveUI (func) Arguments. Check out some examples:Using GitHub's API, I can't get the releases list, but I can get the tags list. Summary: Move the ReactiveList based series of classes to the Legacy namespace and mark them obsolete and direct them to the DynamicData (DD) github page. Reason: The ReactiveList classes are getting a bit clumsy and the DD framework is much more powerful. It has a API more inline with the Rx style of doing things.

Remember this sound?

3. Cigarettes

Thanks to e-cigarettes, the conventional cigarette is, for all intents and purposes, obsolete. Because — let's face it — it only ever served as a nicotine delivery device.

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4. Print Media

Though paper and printing technology are over 1,000 years old, the mass production of printed books dates back to the nineteenth century. And the printed newspapers and magazines of that 'modern' era are now passe. With the Internet at our fingertips, we no longer have any use for phone books, print catalogs, and encyclopedias, either.

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5. All Sorts of Data Storage Media

Many formats that were once ubiquitous have now gone the way of the dodo, such as floppy disks (including 8-inch, 5 1/4-inch, and 3 1/2-inch), zip disks, and jaz disks. A strong case can be made that CDs and even DVDs are also done. Image: Wikimedia commons.

6. All Sorts of Graphical and Video Media Storage

We once ridiculed the demise of Sony's Betamax video cassette format, but VHS has also gone to dead format heaven, as have clunky laser disks. Other deceased formats include analog slides (along with slide projectors and hand-held slide viewers) and analog film (including photo developing, film splicing, disposable film cameras — and Kodak, for that matter — photo albums, and flash cubes).

As graphic designer Benjamin Moogk told me, 'It took some time for CMOS sensors to exceed the ability of chemical film, but we're here. Digital was convenient for a long time, but was limited in dynamic range. Clipping in the highlights and shadows was common. I remember the first Hot Docs where digital movies outnumbered those shot on 16mm. Just look at how the iPhone is killing the point and shoot market for cameras.' Image: Roman Samokhin/Shutterstock.

7. All Sorts of Audio Players and Media Storage

As noted, CDs (including portable CD players) and DVDs are basically dead, but so are 1/4 inch cassette tapes (strangely, my 16-year-old son thinks these are cool, but he's struggling to understand why he can only listen to Side B when he's reached the end of Side A), walkmans, vinyl records (except as novelty items and for DJs.. okay, maybe vinyl is not so obsolete). The DAT (digital audio tape) is also done. And, of course, the old-fashioned record is dead and buried.

This situation has affected a lot more than the items you use to record media. An entire industry devoted to record stores and videocassette/DVD rentals has fallen apart as older media storage formats have become obsolete.

Image: Wikimedia Commons.

8. Various Computer Ports

The Universal Serial Bus (USB) has certainly lived up to its name, eliminating ports for such external devices as printers, mice, and keyboards (e.g. RS-232 & PS/2 ports).

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9. Pulse Telephone Networks and Rotary Phones

This telecommunications signalling technology was first made irrelevant in 1963 following Bell's dual-tone multi-frequency (DTMF) technology, and then later with the introduction of Voice over Internet Protocol (VoIP). Image: BrAt82/Shutterstock.

10. Landlines

Fixed home phones that use a solid medium telephone line, such as a metal wire or fiber optic cable, are still used by over a billion subscribers. But both you and I know it ain't meant to last.

11. Answering Machines

Pretty standard in all mobile phones now.

12. Cathode Ray Tube Televisions

The introduction of plasma and LED screens finally put an end to these ridiculously deep television sets. But they're not completely useless.

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13. Dedicated MP3 Players

Like so many items on this list, it's not so much that these technologies have become obsolete as they've evolved or become integrated within other technologies. The MP3 player, which is now standard on any mobile device, is a prime example.

14. Dedicated Wristwatches

Yes, wristwatches still exist today, but their ability to tell time is now secondary to their primary functions, like GPS and biometrics.

15. Public Pay Phones

Can't find one? I'm sure the person next to you has a mobile phone.

16. Phones That Allow Neck Cradling

Old phones were awesome because you could actually cradle them in the crook of your neck, leaving both of your hands free — and you didn't have to put the person you're talking to on annoying speaker phone.

17. Typewriters

Absolutely, totally dead, dead, dead.

18. Analog Radio Transmissions

Replaced by digital radio (like Sirius Satellite Radio) and streaming audio (including services like Rdio and Last.fm).

19. NTSC Broadcasting for Television

And thank goodness for that. Long live high-definition television! Today, most countries have switched to newer digital television standards.