- How to sort multiple columns in excel without mixing data serial#
- How to sort multiple columns in excel without mixing data drivers#
- How to sort multiple columns in excel without mixing data manual#
- How to sort multiple columns in excel without mixing data full#
- How to sort multiple columns in excel without mixing data Pc#
How to sort multiple columns in excel without mixing data full#
Or maybe it’s just a silly idea all together because full linux capable systems start at around EUR30. Maybe something like this already exists, for example in the form of ucLinux. Modern microcontrollers are much more powerful then the home computers from the ’80-ies or even PC’s from the (early) ’90-ies.
How to sort multiple columns in excel without mixing data drivers#
Things like display drivers could also be run as a loadable module. CP/M could then run as a freeRTOS task and load and run CP/M programs, but other freeRTOS tasks could be written as overlays and compiled to native ARM code. Maybe it could be something as simple as a (free-) RTOS kernel combined with a command line parser.
When mixing these things together, I get to the idea of having some sort of stand-alone system that has an operating system and can load and run different applications on demand, but does not have to be tied necessarily to some pre-existing platform. Micropython has some very rudimentory operating system features, but it’s quite limited. I did have a look at micropython recently, but I don’t like Python much. USB and ethernet could also be added quite easily by choosing the right microcontroller. … and probably more, I guess you could also emulate sound chips and output through I2S, but at some time you’ll run into performance problems. More clock speed, even with CP/M emulation.īuilt in quad SPI, for example for uSD cards, or eMMC. I have difficulty in understanding the attractiveness of this.Ī quick search leads to CP/M emulators on for example ARM, such as: (Apart from chippageddon and parts unobtainability…) Posted in Retrocomputing Tagged 8251, backplane, compact flash, CP/M, i2c, modular, rack, retrocomputer, tty, z80 Post navigation
How to sort multiple columns in excel without mixing data manual#
The 62-page manual has every detail of every module, plus instructions for building one of your own. That’s not to take away from the work obviously put into documentation, though. In some ways, the Proton reminds us of the RC2014, but its fit and finish are what bring this build home. The video below is a little rough, but shows everything off really well. We’d venture a bet that WordStar is in there someplace, or easily could be. The Proton runs CP/M and boasts a ton of old applications that will bring back some memories, like SuperCalc and dBase. The fit and finish are excellent, and the performance is impressive.
How to sort multiple columns in excel without mixing data serial#
Aside from the power supply and the Z80 CPU, other modules include a RAM card with a zero insertion force socket for an EPROM, a mass-storage module sporting a 128 MB Compact Flash card, plus modules for standard serial and I2C comms. Those formed the core of what would become the “Proton” computer, a modular beauty built around 7 cm by 10 cm PCBs that plug into a backplane inside a rack made from aluminum angle. That’s what was going for with his build, which started by finding a Z80 and an Intel 8251 USART in his parts bin. But the lack of a practical reason to do something rarely stops a hacker, as with this nifty modular Z80-based rack computer.Īctually, there’s at least one area where retrocomputers excel compared to their modern multi-core gigahertz counterparts - and that’s nostalgia.
How to sort multiple columns in excel without mixing data Pc#
There’s really no practical reason to build a computer that is woefully inadequate for just about any task compared to even an entry-level PC today. Very few retrocomputing projects are anything other than a labor of love.