The red lever on the side is used to clear the registers. All of the registers are spring-loaded on the inside so resetting them is fast (when they are oiled properly).
Like other simple adding machines you subtract by the complements method. Use the tiny digits next to the larger digits for the subtrahend. The red buttons along the top prevent the carry mechanism. Here's 1000-1, which you get by adding 9999.
Adding is similar to on a chain adder like the Gem Pocket machine I featured earlier. In this case instead of a stylus, you put your finger next to the corresponding lever and pull all the way down to add the digit to the register.
Here is what it looks like after restoration and cleaning. There is a hinged lid that can come down to protect (and even lock) the adding machine when it's not in use.
Here is a view of the machine from the front, and a look at the internal mechanisms. A few of the input registers were pretty sticky and as a result wouldn't reset properly so I spent some time oiling and working those mechanisms to loosen things up.
Here's what we found:
We found unnecessary permissions, insecure protocols, and poor security design in all five brands of the 90+ models of small office/home office printers we tested recently.
Each printer requires some type of critical permissions on its mobile app, requesting location information, account management permissions or contacts. None of this access is necessary for core printer functionality.
This weekend I finished the krokbragd pillow I was #weaving for my mom. I used a Damascus edge for the fringe and hid the fringe in the fabric. It took three tries to hand stitch the seams in an envelope fold I was happy with. Now I just wait for the pillow form to arrive!
My local yarn shop sells natural-color wool from sheep living in the county south of here and the skeins actually have pictures (and names!) of the sheep the wool is from. I just need to decide on a project before I buy it all. #weaving
I'm over halfway through with this krokbragd #weaving project. It's amazing how much faster this is on a floor loom compared to on a rigid heddle.
Akamai is acquiring @linode https://www.akamai.com/newsroom/press-release/akamai-to-acquire-linode
these are some of the tips and tricks I used as a health reporter to access academic studies without spending thousands of dollars on them https://blog.yaelwrites.com/how-to-bypass-paywalls-to-access-academic-studies/
So the main reason I wrote the Visual Voicemail App for mainline linux phones is because my mother leave voicemails if she can't get a hold of me to check up on me and gets worried if I don't call her back.
I'm glad to share that my mom can still do that since I switched to a #librem5
(and yes, I did call her back both times!)
I finally fired Google. In this post I write about how I got locked in, how I got out, and what took me so long. #privacy https://puri.sm/posts/i-finally-fired-google/
Technical author, FOSS advocate, public speaker, Linux security & infrastructure geek, author of The Best of Hack and /: Linux Admin Crash Course, Linux Hardening in Hostile Networks and many other books, ex-Linux Journal columnist.