Xah Keyboard Blog 2020-01

Seagate Barracuda 120 SSD 2TB Internal Solid State Drive Buy at amazon

so, solid state drives are getting cheaper and larger. by the way, is this trend gonna continue, or, what's the technology's limit?

a friend says, yes it's gonna continue.

what's the best device for typing? how about gaming? and what is linear programing?

@Anon21 asks: In your opinion what's the most optimal device to type and game on and what is the most optimal video game keybind layout? (WASD, ESDF, TFGH, IJKL etc.)

That's a complex question. There's no one easy answer.

in general, the specifically designed, weird looking devices, are best, for specific task.

For example, what's the best device for typing? If the typing is speech text, then best is probably google voice input. But if we must restrict to finger operated devices and consider ergonomics and speed, then a stenotype [see Stenotype Machine] is probably best, but, that means we are not counting learning time, and practical inconvenience, cuz you don't have a stenotype on every computer.

So in general, there's ergonomics concern, and practicality concern, for example, Steno machine vs normal PC keyboard vs ergo keyboard like kinesis vs average ergo such as Microsoft or generic split mech keyboard. All has pro and cons.

It's like, multiple variables, and the method to solve such problem is called Linear Programing.

That is, you have variables like potential typing speed capability of the device, long term ergonomic consideration (say 2 hours continuous use per day for 3 years) , convenience consideration (how available is the device), type of input data (speech chat, poem, programing), length of input per day (i.e. How much u actually need to type per day), how long it takes to learn it (e.g. voice vs steno vs other chorded keyboard design), etc. Multiple variables.

For each of these variable, we quantify it. Say 0 to 1. Then, we set satisfaction constraints. for example, the device's ergonomic score must be greater than 0.6, and the potential speed must be greater than 0.5, and learning time required must be less than 0.4, and availability or portability of the device must be greater than 0.6, etc. Then, we measure the scores of each device. Then we check which devices satisfies all inequalities. This is called Linear Programing. And the above is only about the question of: which is the best for typing. Similar can be said for which is best for gaming. There, you have variables like which game exactly, or which category of games, or what kinda mix of games, etc.

How to Avoid Mouse Hand Pain

Valve Steam Controller is no longer made. And, is it good as mouse replacement on a personal computer? updated.

here's history. Valve Steam Trackball Controller

video demo of Kailh BOX Switch

added to Keyboard Key Switch Mechanisms

video Demo of Different Force-Displacement Curves for Key Press

added to Keyboard Key Switch Mechanisms

hhkb in anime c0af1-s204x306
Happy Hacking Keyboard Anime

MTGAP layout

following is originally posted on 2017-07-17

apparently, some nerds are still designing keyboard letter layouts.

todo, read

it's like, is x++ faster or x=x+1? Like, keep hacking a dead horse.

it's by Michael Dickens

His layout is called MTGAP layout. Apparently based on evolutionary algorithm.

I haven't looked into detail what he's doing, but he seems to have spent significant effort, for like 10 years.

he's got a list of layouts, more than that i know. But lots of it is now dead link. See http://mdickens.me/typing/alternative_layouts.html

See also:

been using Ultimate Hacking Keyboard in past 10 days. now i put it back in Best Ergonomic Keyboards, Xah Pick

azeron keypad 4t547-s249x251
Azeron Keypad

two articles on ergonomics.

Windows Keyboard Software Guide
updated. New navigation panel. These articles are slightly old.

Ban Mouse Micro Switch

ban mouse micro switch. they always have drag double click problems.

ban mouse button 2020-02-18 c3dm4
ban mouse micro switches 2020-02-18

Kensington Pro Fit Ergonomic Keyboard

new ergo keyboard. haven't studied it yet.

Kensington Pro Fit Ergonomic Wired Keyboard (K75400US) Buy at amazon

bad reviews

Logitech K860 Keyboard hkf6q-s319x196
Logitech Ergo K860 Keyboard

ergo keyboards is getting more popular.

flat ergo comparison

i'd just get X-Bows Keyboard

but see also Is Keyboard Tenting Important

on the keyboard department, did i mention, due to life circumstances, i switched from kinesis of 4 years Kinesis Advantage2 Keyboard to uhk Ultimate Hacking Keyboard as main. For a change. we'll see what happens next.

Just redone the navbar. So the navbar is on the left in the following pages Windows Keyboard Software Guide

Those pages are a bit old. Because i haven't been on Microsoft Windows much, but most importantly, i started to use programable keyboards, which is superior than OS key programing.

Programable Keyboards with Onboard Memory

Windows: Swap Mouse Right-Click Middle-Click

PC Reveal keyboard
new photos. thanks to Zumwelt Zumleben

Apple MacBook Touch Bar

keyboard history. The ergo revolution due to Microsoft. One of rare instance where Apple's version failed.

Microsoft Natural Keyboard

“the best way to avoid injury is not to go pro!”
Bad Keyboard Advice from Programers

Filmmaker Taika Waititi slams Apple keyboards during post-Oscar interview. Funny. see Worst Apple Designs

Mac Keyboard Shortcuts

keymouse 2018 009f1-s333x188

Keymouse stops making.

Wacom Drawing Tablets Spy on You


Huion H640P drawing tablet 20190201 wkwct-s-s289x217
Drawing Tablet

Alt Graph Key, Compose Key, Dead Key

Best Ergonomic Keyboards, Xah Pick
think i gonna remove UHK and Mistel Barocco. Can't consider keyboard sans physical arrow keys as best.

seems Mistel Barocco keyboard is discontinued? Mistel Barocco Split Keyboard


Apple extended keyboard 1 1987-s391x160
Apple Extended Keyboard, 1987
Apple Keyboard m0487 cbgm7-s289x217
Apple Keyboard II M0487, 1990
Apple iMac keyboard M2452 1999 jxg7P-s250
Apple USB keyboard, 1999. (Bondi Blue iMac)
Apple pro keyboard german layout 92684-s414x151
Apple Pro Keyboard A1048, Year 2003

Apple Keyboard History ⌨

Sony BKE-2011 keyboard 86333-s376x166
Sony BKE-2011 keyboard

Topre Switch

Keyboard Key Switch Mechanisms

Varmilo EC Switch

Xah Keyboards

gergo keyboard

new toy arrived

gergo keyboard 20200121 zgxyd-s353x177
Gergo 50

blank keys, tenting degree, and chord shortcut vs single key sequence

some of my pushy answer on xahlee discord.

ah here. Das Keyboard, the one that started blank keys idiocy Das Keyboard

Blank Keycaps = nerd idiocy. Why Not Blank Keycaps

the proper understanding of degrees of tenting Scientific Research on Keyboard Ergonomics

regarding key sequences instead of chord, it cannot be done with keyboard firmware. it must be done in the app or os. and most of them can't do it. example: try to make a key sequence do Ctrl+c

Ban Key Chords

on linux, LXDE/Openbox can do it see Linux: LXDE/Openbox, Change Keyboard Shortcuts but otherwise difficult.

but if you use Emacs, it's easy. Define Key Sequence Emacs: Define Key Sequence
Elecom HUGE Trackball kzn721-s250
Elecom HUGE

added a video of ball spin

ripster irl 2020-01-19-s224x280
Keyboard Scientist

old. the birth of xah-fly-keys

todo Logitech G513 Keyboard

now go buy a Sony Xperia 5 Unlocked Smartphone Buy at amazon Make economy great again. help Bezos richer to help your life more convenient.

amazon basics trackball 8hdby-s223x280
AmazonBasics G5W

this one is no buy. updated.

Proper Sitting Posture
hhkb cst ltrac YQNWJ-2-s250

L-Trac is back. now sold by X-Key.

Kensington Pro Fit Trackball zztVZ-s250
Kensington Pro Fit
Trackball Ball Sizes and Replacement


thinking of taking out my logitech marble for a spin


Obsolete Mouses todo

imac mouse-s289x217
Apple iMac G3 mouse, 1998
spinner key 2018-02-27 9kgty-s345x181
Spinner Keycap

Ergodash with knob

ergodash ny6jq-s333x188
Ergodash 68

new photo, and thanks Matt B for donation.

keymouse 2018 009f1-s333x188

more photos. One of our friend, Kathy, just bought this. Now, among xah talk show circles, we have 3 person who have keymouse.

vertical gaming

adde a video.

NEC PC9800 c6264-s289x217
NEC PC9800 Series Keyboard


Kensington Orbit Trackball with Scroll Ring m4kyj-s256x244
Kensington Orbit Trackball with Scroll Ring

grey version came out.

input devices and 3d printed improvement, by Lindy Design Lab

You Can't Buy Ergonomic Mice Like This
Dec 30, 2019
Lindy Design Lab

great video. She is a 3d modeler.

Lubrigante Keyboard 5rbz4-s329x190
Lubrigante Keyboard

Sabrent Rocket Q 2TB NVMe PCIe M.2 2280 Internal SSD High Performance Solid State Drive R/W 3200/2900MB/s (SB-RKTQ-2TB) Buy at amazon

OLOy Memory DDR4 RAM 32GB (1x32GB) 2666 MHz CL19 1.2V 260-Pin Laptop Gaming SODIMM Upgrade for 2019 iMac 27-inch with Retina 5K Display, Late 2018 Mac Mini (MD4S322619MZSC) Buy at amazon

todo. remove. no longer made. Havit RGB Mouse

todo. no longer made? CM MasterKeys PBT Keyboard

macOS: Create Custom Keyboard Layout

Surface Pro 4 929a7-s1270x953-s289x217
Microsoft Surface Pro
Sony DPT-RP1 B Digital Paper 20200104 xq58w-s333x188
Sony Digital Paper

people are still buying CODE Keyboard