Saturday, June 28, 2025

From Facebook March 24, 2020

I was born at a time that made my life a transition between the old and the new. The people who came before me went through the Great Depression, World War II, and the Korean war. The technology of the 1960s was hardly distinguishable from the 1950s. The cars were practically the same. I didn't get a color television until the mid-1970s. High tech was a transistor radio.

In the early to mid-1970's I was very interested in electronics because at the time that was about as high tech as you could get. However, when the most primitive computers imaginable started to emerge around 1975, I became immediately hooked because I could see that this is where the future was headed.

John Coffey

Sunday, June 15, 2025

NES Games Were Written in Assembly

https://www.youtube.com/shorts/kFjSxwijItU

@john2001plus
0 seconds ago
I wrote games in Assembly for the SNES, Gameboy Color, Atari ST, and Timex Sinclair 2068.

Saturday, June 14, 2025

10 Year Old Wins Utah Speed Chess Championship

Note the date:

https://chessplayeratlarge.blogspot.com/2009/02/10-year-old-wins-utah-speed-chess.html

The press always gets details wrong and reported this as a ten year old winning the state championship.

When Kayden was 8, I was only scoring about 50% against him.  He looked so small, but was playing very well.  My overall results against him went quickly downhill from there.  However, when he was 12 and almost a master, I won 1 out of 2 against him in a subsequent speed chess championship.

Tuesday, June 3, 2025

Sugar Consumption, Date format

https://www.youtube.com/shorts/xHXtGsKq5JU

The International ISO Standard for dates is YYYY-MM-DD.  I have been using this format for at least 15 years.  

In the computer world, this is called "Big Endian", where the largest value numbers come first.  Many computer processors use this format for numbers, although Intel and Intel-compatible processors use "Little Endian", where the least significant part of the number comes first.  "Big Endian" has a small advantage because it is easier to sort records using this format.

Friday, May 30, 2025

Columbus Chess Club Last Night

Here's what happened at the Columbus Chess Club last night:

Last week, we had a new player join us—Leno. He's from Brazil and is currently a summer intern at Cummins Engine Company. Based on his play, I'd estimate he's about a Class C player.

This week, four more new players showed up. Two of them are brothers, and one is Leno's roommate. Although they claimed Chess.com ratings in the 950–1100 range, they played surprisingly well against both James and me. They are comparable to James He struggled against them, and I even lost one myself, so I think that they are in the B class.

With 11 players in attendance, our small meeting space felt a bit crowded.

Chess is more popular than ever, and seeing new, stronger players emerge in Columbus is a welcome development.

Eli is a 13-year-old about to turn 14.  He plays astonishingly well. My record against him was only slightly positive. His mother brought him to the club late last night, and he scored 3 out of 5 against me.

Eli has an Expert-level understanding of his openings. I wasn't well prepared for his repertoire, which is something I can work on. Our games are intense positional battles, which remind me of playing masters, and I believe he has real potential to become one.

Although Eli calculates very well, I sometimes manage to spot tactics that he overlooks. Also, if I can reach an endgame against him, I usually win.

Due to other commitments, Eli can only attend the club occasionally.

Since I'm officially ranked 27th in the state, I've enjoyed the status of being the top player in Columbus, once by a wide margin. That distinction may no longer hold, but I welcome the challenge of stronger competition.


Best wishes,

John Coffey

Friday, May 16, 2025

When was the clock radio invented?

In the mid-1970s, while I was a teenager, I was thrilled to get a clock radio.  It meant that I could wake to music and news.    I don't remember for sure, but I think that I got up between 6:30 to 7:00 to catch a roughly 7:30 to 7:45 bus, which traveled less than 2 miles, and I was in class by 8:00.  As I recall, our school got out some time between 3:00 and 3:30.



"The first radio alarm clock was reportedly invented in the 1940s by James F. Reynolds and Paul L. Schroth Sr. While these inventors are credited, the origins of the clock radio are somewhat unclear, with no official U.S. Patent Office record. The Sony Dream Machine, released in 1968, is considered a notable early example of a clock radio featuring a snooze button and AM/FM radio. 
Elaboration:
Early Inventors:
James F. Reynolds and Paul L. Schroth Sr. are widely credited with the invention of the first radio alarm clock in the 1940s. 
Lack of Official Record:
The exact details of the clock radio's invention are not documented in the U.S. Patent Office, leaving some ambiguity about the precise timeline. 
Early Models:
While Reynolds and Schroth are credited, the exact models they invented are not widely documented. The Sony Dream Machine, released in 1968, is considered a landmark clock radio. 
Evolution:
Early clock radios were large and heavy, but they evolved into more compact and portable models, including those with digital displays and additional features like smartphone charging stations. "
https://www.google.com/search?q=when+was+the+clock+radio+invented&rlz=1C1GCEU_enUS1160US1160&oq=when+was+the+clock+radi&gs_lcrp=EgZjaHJvbWUqBwgAEAAYgAQyBwgAEAAYgAQyBggBEEUYOTIICAIQABgWGB4yCAgDEAAYFhgeMggIBBAAGBYYHjINCAUQABiGAxiABBiKBTINCAYQABiGAxiABBiKBTINCAcQABiGAxiABBiKBTIKCAgQABiABBiiBDIKCAkQABiABBiiBNIBCDY3NTBqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8

Monday, May 5, 2025

I left Utah ten years ago today

I left Utah ten years ago today—on Cinco de Mayo.

This followed three intense days of packing. I only took what could fit in my car; everything else I sold or gave away. The car was packed so full that I couldn't squeeze in a single extra item. I even had to mail a box of pans I'd bought on Black Friday to my new home in New Whiteland, Indiana. (It's still hard to believe my car was so full that there wasn't room for a box of pans.)

I had planned to leave around 10:30 in the morning because I had a hotel reservation in Nebraska. But I wasn't ready until about 3:30 in the afternoon, and I didn't arrive at my hotel until around 1:00 AM. I remember liking Ogallala, Nebraska—a small town in the middle of nowhere—with a kind of quiet charm.

I had lived in Salt Lake City for over 22 years. I liked Utah; it had a profound impact on my life and career. I worked three jobs, moving from the video game industry to a major military contractor. I also spent 22 years running a chess club I started, organized tournaments, and served on the board of directors of the Utah Chess Association.

As I left Salt Lake City, I stopped on I-80 just before entering Parleys Canyon. I stepped out of the car for about 30 seconds—right there on the highway—just to take one last look at the place I had called home for more than two decades. Even though I loved Salt Lake City, I told myself that my future lay ahead. Then I got back in the car, and as I drove into the mountains, Salt Lake City disappeared from view.

Sunday, April 27, 2025

i7-7700K (2017) iMac problems

After selling my 2017 i5 iMac to a woman from Scottsburg and setting up my 2020 iMac, I needed to prepare my recently purchased 2017 iMac (with an i7-7700K) for resale.

The first step was to remove the Windows partition and erase everything on the computer — and that's where the problems began.

I used Boot Camp to remove the Windows partition I had previously created, which should have reclaimed the 1.6 TB I had allocated to Windows. While the program successfully deleted the partition, it reported an error when attempting to reclaim the storage space. I then tried using Disk Utility (the Mac partition tool), which also failed and told me to try running it from Recovery Mode, which didn't work.  A few years ago, I tried the same thing on my old, dying 2009 iMac, and that attempt had failed too.

Newer iMacs have a built-in feature to securely erase everything automatically, but while the option exists in macOS, it doesn't actually function on older models. So, the recommended method is to boot into Recovery Mode, reformat the drive, and reinstall the OS — a process I had successfully completed on the iMac I just sold.

Unfortunately, the 2017 iMac with the i7 processor reformatted the drive but threw an error during the OS installation. It simply refuses to install. At this point, I have a $400 paperweight with no operating system.

I'm starting to wonder if the 2 TB hard drive might be defective.  It is, after all, an eight-year-old computer.

Next, I'll try creating a bootable USB flash drive with the macOS installer using my 2020 iMac. According to everything I've read online, that's the recommended next step if the OS won't install through Recovery Mode.  It is probably what the repair shop would try.

Friday, April 25, 2025

My Lengthy iMac Story

My Lengthy iMac Story:

Because of rapid advancements, computers quickly become outdated. From 1995 to 2010, I bought a new computer roughly every five years. I remember telling my coworkers in 2001 that my new machine could boot up in just 2.5 minutes—they were impressed. But how could a computer I considered "fast" in 2001 feel like junk by 2005? And the cycle repeated itself in 2010.

However, during the 2010s, the pace of chip improvements slowed. Companies were touting only 5–10% performance gains each year. A big reason was that it became increasingly difficult to shrink chip circuits. Intel got stuck at 14 nanometers. It wasn't until 2020, when Apple introduced its M-series chips—starting at 6nm and shrinking to 4nm—that we saw a meaningful leap forward. Much of the credit goes to TSMC (Taiwan Semiconductor Manufacturing Company), which produces chips for Apple and many other companies.

My first Intel-compatible computer, which I bought in 1995, cost $1,200. It was a barebones 486 running at 33 MHz, lacking features that are standard today. Over time, I Frankensteined it—adding a sound card, optical drive, better processors—one component at a time. By the time I had spent $3,000 on it, it was so obsolete that it made more sense to just buy a new machine. Newer computers came with all the features pre-installed and cost much less.

In 2010, I bought an iMac because I wanted to do iPhone app development. It cost $2,000, already discounted from the original $2,400 price. If I had known it would take me so long to get into development, I probably wouldn't have bothered. I could have bought an equivalent PC for about a third less.

That 2010 iMac had a quad-core 2.8 GHz i7 processor with hyperthreading. At the time, it felt incredibly powerful—a huge upgrade from anything I'd used before. I told myself the higher cost was justified since it would last ten years.

About three years in, the power supply failed. One issue with iMacs—and all-in-one computers in general—is that they're harder to repair and more prone to overheating due to their compact design. By 2018, the power supply was failing again. A repair shop told me several components were on the verge of dying and that fixing it would be cost-prohibitive. By 2019, the machine was completely dead.

So, in 2019, I went shopping for another iMac. I found a used 2017 i5 model—twice as fast as my old one—for $1,050, which was a fair price at the time. I wanted an i7 version with hyperthreading, but those were going for $1,950 used.

By 2023, even this second iMac felt slow. The Android development tools I needed were nearly unusable due to performance issues. I realized I needed a faster computer—just a Windows machine for Android work. I could still use the iMac for iPhone development. So I bought a mini-PC with a 4nm AMD chip—five times faster than the iMac and capable of booting Windows 11 in just 7 seconds. Amazing.

However, mini-PCs can suffer the same heat issues as all-in-ones. They all use laptop components and compact cases. After 14 months of heavy use, mine overheated and died. It took three months to get repaired in China. Interestingly, the machine I got back was a bit faster. It was the same case, but I suspect some internals were swapped. The company wouldn't tell me what they fixed.

Then, in March 2025, a series of storms in Indiana triggered the next chapter in this saga. After several power flickers, my iMac died the next day. I brought it to a repair shop and, learning my lesson, bought a couple of surge protectors—which I highly recommend.

With my mini-PC still in China, I was stuck using an old laptop. Surprisingly, it streamed video just fine.

Worried that the iMac repair would be expensive, I started browsing for replacements. On Facebook Marketplace, I found a 2017 i7 iMac in Louisville—the same model that used to cost $1,950—for just $400. It was 60% faster than my i5. I was ready to buy it. But two things changed my mind: First, my i5 repair ended up costing just $50—a power supply cable replacement. Second, I admitted to the seller that I was nervous about the long trip to the south side of Louisville. I told him I didn't need two iMacs. He suggested I could sell my old one and even dropped his price by $50. That sealed the deal. I drove to Louisville on a day of severe flooding, had to turn around, and eventually found another route.

After buying the i7, I listed my i5 for $300. A buyer was interested, but I accidentally cracked the glass front while handling it. The shop quoted $500 for the repair. Although the crack is minor, the buyer backed out. I lowered the price to $200 and plan to keep reducing it until someone bites.

Meanwhile, Facebook kept showing me more iMac listings. Two 2020 i7 models appeared—one in Louisville, one in Carmel—both for $500. The Carmel one had more RAM and storage, making it more appealing. These newer models were twice as fast as my recent purchase and came with SSDs, which makes a big difference. I started wanting one of these instead.

The catch: the Carmel seller mentioned a scratch and a tiny crack on the right side of the screen. Since I was already dealing with a cracked-glass problem, I initially passed. The next day, the price dropped to $430, and then today to $380. I messaged the seller, drove to Carmel in more stormy weather, and saw that the damage was very minimal—so I bought it. A great deal.

Now, I'm trying to sell two iMacs.

P.S. Yesterday, my barber told me her old laptop takes 25 minutes to boot. I suggested adding more memory, but she didn't even know what that meant. I offered to take a look at it for her.

Tuesday, April 8, 2025

Coffee

Raging Indiana Waterfall Pours Floodwater Onto Cars Below

https://www.youtube.com/watch?v=8WsCbanZey4

When we lived in Madison, Indiana, during the 1960s, we used to pass this waterfall all the time. Most of the time, it was just a trickle.

Madison is divided into two parts: one lies along the Ohio River, while the other sits much higher in elevation, with a couple of roads connecting the two areas.

'This is wild' | Columbus neighbors react to historic Bartholomew County floods

https://www.youtube.com/watch?v=4fivCkAzwoY

The flood peaked two days ago.  The day before, I took State Road 46 to get to the Interstate so I could get to Louisville.  State Road 46 was flooded the next day.

Reflections on America


https://www.youtube.com/watch?v=yIEo3rG2wME

@john2001plus
0 seconds ago
There are many restaurants in America, mostly chains, where one can enjoy a nice meal for $20 to $40. This is how most Americans dine out when not opting for fast food.

Cornbread is not cake; it is a dense bread. While I'm not particularly fond of the taste, it pairs well with BBQ, chili, or beans.

Many large cities in the United States have become dysfunctional, or they contain areas you'd want to avoid. Smaller cities tend to be the best places to live.

Friday, April 4, 2025

My Computer Being Shipped Back From China

My mini-computer, which took 41 days to ship to China using USPS, was shipped back to me on Monday using DHL Express.  It has already reached Indianapolis.  

https://t.17track.net/zh-cn?spm=a2g0s.imconversation.0.0.54c13e5f4Bq0lP#nums=9502219484

Monday, March 31, 2025

Another strong storm hits Bartholomew County; 15,000 homes lose power, some roads closed

https://www.localnewsdigital.com/2025/03/30/another-strong-storm-hits-bartholomew-county/

On the way to Indianapolis near Taylorsville I saw one damaged roof and a large road sign apparently blown over.

Update on Mini Comptuer



As I previously posted, my mini PC overheated and died in early January. After arguing with the manufacturer in China, they directed me to contact the seller—also based in China—for warranty service.

Fortunately, the seller agreed to honor the warranty, provided I sent the computer to them. I paid $83 for USPS shipping, and the package took 41 days to reach China. This was unusual, as I typically receive packages from China in three weeks or less. USPS tracking showed the package arriving in Chicago, departing, and then inexplicably returning to Chicago about a month later. At that point, I suspected there was an issue with shipping it to China and thought it was being returned to me. However, a few days later, it finally showed up in China.

After another week, the seller informed me that they would repair the computer. A week later, when I asked for an update, they said the repair would take one to two months.

Surprisingly, just a week after that, they said the computer was fixed and would be shipped back to me. I suspect that they had to replace the entire motherboard.

Assuming I receive it and it works properly, I want to prevent the overheating issue I experienced before when running the CPU at 100%. I originally bought this computer for its high performance, and the manufacturer had claimed that its cooling system could handle the heat.

One option is to lower the TDP from 55 watts to 45 watts, which the BIOS allows. This would reduce performance slightly but also decrease heat output. I could take a more extreme approach and reduce it further to 35 watts.

I should point out that some people on YouTube report boosting the TDP to 65 watts for better performance. A competing manufacturer does this by default with the same processor.

Apple is good at running its processors at about half the wattage. However, the M2 chip only gets half the performance.

Sunday, March 30, 2025

Storm

I was working on my computer when an alarm went off on my phone, followed by a citywide tornado siren and multiple tornado warning alerts and texts.

The last two warnings, both from this month, were for tornadoes near the edges of the county, far from my location.

I did the only reasonable thing: I stepped outside to check out the weather. I wasn't the only one.  Just to the west, some ominous black storm clouds were gathering. It slowly started to rain, so I took shelter inside. The Weather Bug app indicated a fast-moving storm system overhead.

Then, the power went out. The storm sounded intense, so I temporarily hid in a large closet. It passed after a few minutes.

The power company sent a text estimating the outage would last until 2:15 AM.

The power came back on after about 2 hours and 15 minutes.

I wonder whether there was actually a tornado.

Two years ago, a tornado on the far west side of the county caused a massive burst of wind in Columbus, knocking down trees all over the city, including on a property across the street. That storm sounded worse; I genuinely thought my house was about to be hit by a tornado.

--
Best wishes,

John Coffey

http://www.entertainmentjourney.com

Thursday, March 27, 2025

How smart is AI really?

For fun, I searched Google for "John Coffey USCF Rating"

Google's AI came back with this response:

John Coffey, a retired software engineer and chess expert, has an Expert standard Over-The-Board (OTB) rating and has given chess lessons for 37 years.
Here's a summary of what's known about John Coffey's chess background:

Occupation: Retired Software Engineer
Chess Expertise: Expert standard OTB rating
Chess Teaching: Has given lessons at chess clubs for 37 years
Online Presence: You can find his free lessons on http://www.entertainmentjourney.com



At first, I wondered how Google's AI knew so much about me, but then I realized that this response echoes my Profile on chess.com, which reads...

"Hello.  My name is John Coffey.  I am a retired Software Engineer.  I have an Expert standard OTB rating and have given lessons at chess clubs for 37 years.  You can find my free lessons on http://www.entertainmentjourney.com, along with other interesting stuff."

My initial impression of ChatGPT was that it was just a Wikipedia that could talk.  However, for about a month, I have been letting it touch my writing, and it does an amazing job. 


 


Sunday, March 16, 2025

The OLDEST websites EVER

https://www.youtube.com/shorts/bdmmkwoketM

@john2001plus
0 seconds ago
Was there a website in 1986? I used the text-only Internet from around 1989 to 1995. I didn't download Netscape until around 1995, and the Internet was so sparse that I didn't know what to do with it.

BTW, I was a programmer on the Space Jam video game.

Saturday, March 15, 2025

Tornado Warning in Columbus Indiana Last Night

I was woken up in the middle of the night by a city-wide tornado siren. I was tired and didn't hear any severe weather other than distant thunder. Thinking it wasn't necessary to get out of bed, I checked my phone for alerts. There was a tornado warning for Columbus, but the tornado didn't seem to be nearby.

The siren stopped after about three minutes but started again. When it stopped for the second time, I was able to go back to sleep.

I can't find much in the news about it, but I'd like to know where the tornado was.  A couple of years ago there was a tornado in the western part of the county that created a severe wind that knocked down trees all over the city.

https://www.localnewsdigital.com/2025/03/15/136944/

Today it is threatening to storm outside.

Wednesday, March 12, 2025

The Problem with Laptops and Heat - and the problem with Apple computers

https://www.youtube.com/watch?v=bq9O99TgFv4

@john2001plus
0 seconds ago
0:34 It is ironic that the video features the Minisforum UM790 Pro. Mine overheated and died after 14 months of heavy use. I argued with the manufacturer about the warranty, but they told me that the seller on AliExpress was responsible for warranty service. The seller agreed to inspect it if I shipped it to China. It took six weeks to arrive, and now the seller is examining the dead computer to determine whether they will provide warranty service. Mini computers use mobile components, making them similar to laptops. I now realize that a mini-computer is unlikely to have adequate cooling.

Tuesday, March 11, 2025

Thursday, March 6, 2025

John Coffey - IMDb

I have a page on IMDB, which I discovered by accident. If you search online for John Coffey, the results will be about The Green Mile.

https://www.imdb.com/name/nm13954741/?ref_=fn_all_nme_20

This is not as complete as this list:


which itself is not complete.

Thursday, February 13, 2025

Star Wars Youtuber gives detailed response to my question

My question was in response to a previous video in which he ascribed weird motives to people who enjoyed "The Acolyte" series. 

https://www.youtube.com/watch?v=f7UFFjM_LCU

Tuesday, February 11, 2025

Diana Muldaur


I am always astonished at the passage of time.

Diana Muldaur played three different characters on Star Trek.  Right now I am watching an episode of the original series, Return to Tomorrow, where she is referred to as a young woman.  She was 29.5 when the episode aired.  I remember seeing this episode a very long time ago.

Twenty years later when she played in the second season of Star Trek The Next Generation, she was 50.  Her character, Doctor Pulaski, was interesting but the character had mixed reactions from the fans.  She was not invited back for the third season.

She stopped acting in 1993.   But she has come out of retirement to play in an upcoming film called Finding Hannah.  She is 86.

Time has a way of speaking up on all of us.

--

Thursday, February 6, 2025

The Story of Chunk the Groundhog. Narrated by Gardener Jeff.

Been watching this guy occasionally on YouTube for years. There are only so many videos of groundhogs I can find entertaining, but it is cute.

https://youtu.be/3nS6OqHT7aU?si=0FS3JbHHy_hsJsAS

The guy fortified his garden but started putting out vegetables for the groundhogs so that he could record them for his YouTube channel.

A long time ago my father advised to never feed wild animals. You make them dependent. Animals know how to find food. However, I'm more worried about rabies, which is a deadly disease and especially common among raccoons. I've saw a video of a kind old lady feeding a bunch of raccoons. This can be dangerous.

Friday, January 10, 2025

Why The US Navy Really Needs This One Forest in Indiana

https://www.youtube.com/watch?v=UnpSDfHn8fs

@john2001plus
0 seconds ago
Indiana is an "F" tier state?  Indiana is an industrial powerhouse with vast amounts of farmland and natural forests.  Columbus, Indiana, where I grew up and retired 40 years later, was determined to be the safest small city in the country.  The city is also famous for its architecture and is the worldwide headquarters of Cummins Engine Company.