The following warnings occurred:
Warning [2] Undefined array key 201206 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201238 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201244 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201245 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201248 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201245 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 201248 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $lang - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks





HP keyboards, past and present



#2

I was playing with a few old non-HP calculators I just recently bought. They are all from the early 70's. And they all have really horrible keyboards. The keys are mushy, bouncy, in a word almost unusable; while HP keyboards from that era are really nice.
But you all know this.

What I was thinking today is that the quality of even non-HP keyboards is much better these days. I sometimes play, for example, with a ultra-cheap, modern Casio fx-570. Its keyboard doesn't "rotate and click", but I find it reliable: no missed keys or bounces *ever*. True, it doesn't have the pleasant click, but it's perfectly usable. Some modern HP keyboards instead, despite having the click, aren't all that reliable. I use, for example, the HP-50g and the WP-34s (30b hardware), and with both I have to keep an eye on the display, to see if all the keys registered because they sometimes don't.

I still like HP keyboards a lot, maybe I'm just saying that the "gap" between HP and others has gone - or worse yet, has reversed...

OK, "rant" over! :)

Cristian


#3

I always liked the HP-41 keyboard layout for the function keys, on the left (L) side of the numbers with the order top down (-) (+) (*) (/).

Never heard the reason why HP moved the function keys to the right (R) of the numbers with the order top down (/) (*) (-) (+).

Does anyone know HP's motivation to this change?

-K2


#4

No one so far as I know has successfully answered this question.

If the premise is that the most-used keys should be closest to each other, then the four basic math operators, number keys, and Enter should be grouped together, which they basically are on all HP's.

If + and - are used more frequently, then these should be closest to Enter, as on the Classics.

Why are the Pioneers and 48's the opposite of this?

The Voyagers may offer the best arrangement, since the numbers are flanked by Enter on the left, and four basic math operators on the right, plus the order of operators, combined with the dropped down Enter key, puts all the most-used keys closest to each other.

#5

Huh, I thought the 30b had a good keyboard..? The design of the 15C LE keyboard appears to be good, however. Are these 'loose' domes in the new Voyagers a first? It's great! HP should take the good job their employees do serious and care for a likewise good manufacturing. But that won't happen, unfortunately.

BTW, all my Casios had reliable keyboards, and so did my Commodores, Corvus' and Sinclairs. The only exception were TIs and some minor calculator brands like Philips.


#6

Yeah, my fx-7000g's keyboard works fine, it's just very mushy. The molded rubber 'keys' are very flimsy and flex a lot, and there's no tactile feedback.


Possibly Related Threads…
Thread Author Replies Views Last Post
  HP12c Present Value of $1.. Inaccurate??? Edward Dixon 12 3,270 11-12-2013, 11:32 AM
Last Post: Edward Dixon
  RPN bugs both present in Prime Calc and emulator Eelco Rouw 9 2,398 10-16-2013, 12:22 PM
Last Post: Eelco Rouw
  Different keyboards on ARM 12c Jose Gonzalez Divasson 6 1,891 10-17-2011, 01:52 PM
Last Post: Paulo MO
  Funny Museum Posts From The Past... DavidShenk 3 1,189 06-27-2010, 12:01 AM
Last Post: Vieira, Luiz C. (Brazil)
  Significant variation in Woodstock keyboards? Michael Meyer 2 1,050 03-23-2010, 11:37 AM
Last Post: Michael Meyer
  Heat staked keyboards with sticky, bouncy or corrosion present keyboard PCAs Geoff Quickfall 12 3,046 08-15-2009, 07:55 PM
Last Post: Geoff Quickfall
  Kinda Christmas present: Mutiple danish magazines about HP calculators Johnny Bjoern Rasmussen 2 1,050 12-24-2008, 06:20 PM
Last Post: Johnny Bjoern Rasmussen
  My birthday is arriving my present is. . : -) gileno 3 1,082 04-16-2006, 06:38 PM
Last Post: Howard Owen
  The pace of progress - exact factorials and the past! Gene 15 3,305 04-30-2005, 04:05 AM
Last Post: .
  Hp 65 & 67 Keyboards Howard 3 964 04-15-2005, 02:23 PM
Last Post: Trent Moseley

Forum Jump: