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The board is up and running. Here's the very basic prototype monitor, plus a teeny-tiny CP/M 2.2C, complete with hello world program (GM.COM), real-time clock program (RTC.COM), and Xmodem (XM.COM).
Retrocomputing (a portmanteau of retro and computing) is the use of early computer hardware and software today. Retrocomputing is usually classed as a hobby and recreation rather than a practical application of technology; enthusiasts often collect rare and valuable hardware and software for sentimental reasons. However some do make use of it.[1] Retrocomputing often gets its start when a computer user realizes that expensive fantasy systems like IBM Mainframes, DEC Superminis, SGI workstations and Cray Supercomputers have become affordable on the used computer market, usually in a relatively short time after the computers' era of use.
en.wikipedia.org/wiki/Retrocomputing
Con il termine retrocomputing si indica una attività di "archeologia informatica" che consiste nel reperire, specialmente a costi minimi, computer di vecchie generazioni, che hanno rappresentato fasi importanti dell'evoluzione tecnologica, ripararli se sono danneggiati, metterli nuovamente in funzione e preservarli.
Look at the Nikon D200 screen. You will see a picture of the HP Computer the camera is sitting on ;-)
Retrocomputing (a portmanteau of retro and computing) is the use of early computer hardware and software today. Retrocomputing is usually classed as a hobby and recreation rather than a practical application of technology; enthusiasts often collect rare and valuable hardware and software for sentimental reasons. However some do make use of it.[1] Retrocomputing often gets its start when a computer user realizes that expensive fantasy systems like IBM Mainframes, DEC Superminis, SGI workstations and Cray Supercomputers have become affordable on the used computer market, usually in a relatively short time after the computers' era of use.
en.wikipedia.org/wiki/Retrocomputing
Con il termine retrocomputing si indica una attività di "archeologia informatica" che consiste nel reperire, specialmente a costi minimi, computer di vecchie generazioni, che hanno rappresentato fasi importanti dell'evoluzione tecnologica, ripararli se sono danneggiati, metterli nuovamente in funzione e preservarli.
This is the lower of the two boards that comprise the membership card. The RCA COSMAC 1802 processor is the big chip on the right. 32K of static RAM is on the left. The remainder of the components are supporting latches and gates. There is a super cap in the lower right corner used to maintain memory when power is disconnected.
Retrocomputing (a portmanteau of retro and computing) is the use of early computer hardware and software today. Retrocomputing is usually classed as a hobby and recreation rather than a practical application of technology; enthusiasts often collect rare and valuable hardware and software for sentimental reasons. However some do make use of it.[1] Retrocomputing often gets its start when a computer user realizes that expensive fantasy systems like IBM Mainframes, DEC Superminis, SGI workstations and Cray Supercomputers have become affordable on the used computer market, usually in a relatively short time after the computers' era of use.
en.wikipedia.org/wiki/Retrocomputing
Con il termine retrocomputing si indica una attività di "archeologia informatica" che consiste nel reperire, specialmente a costi minimi, computer di vecchie generazioni, che hanno rappresentato fasi importanti dell'evoluzione tecnologica, ripararli se sono danneggiati, metterli nuovamente in funzione e preservarli.
I've always been fond of the IIe - the first one I saw was at Myers back when they had a dedicated business computing department (although technically it was the Platinum model), and I really impressed - it seemed so much fancier that the VIC-20s and Commodore 64s I was used to.
The Oric Handbook by Peter Lupton and Frazer Robinson. Published by Century Communications in 1983, this is one of those books that aims to provide an alternative to the official manual.
Debugging why the telescope (literally) crashed. Try doing that when it's replaced with the new computer. You'll need to bring in some pimply faced youth to add some code to the TCL interface.
This little home computer was released on the 5th of March, 1981. It turns 39 today. This particular specimen isn't the prettiest ZX81 out there, but it's mine. ♥
It could only do black and white on a TV screen and had an awful, awful ‘keyboard’—the term used very loosely. It's not just about half the size of a normal keyboard, it's also a microwave oven-like membrane keyboard with exactly zero feedback.
But that didn't matter, because you only had 1,024 bytes of RAM anyway, and you had less than that free to use. Forget novels, you wouldn't be typing letters on this, either! In fact, this description wouldn't fit in the ZX81's RAM even if it had lower case letters. (it didn't)
This computer had a FAST mode and a SLOW mode. In SLOW mode, the computer was sluggish even by 1981 standards. In FAST mode, it was a lot faster, but the display turned off.
Still, it was cheap, and many of us old bastards got our first contact with a computer on a Sinclair ZX81.
Netronics RCA Cosmac ELFII with the vintage HL Audio power supply marketed for use with the ELF in the UK at the time c1978.
Yes, I've really case modded my #Atari 260 ST in the early computing days 😁 #AtariST #retrocomputer #retrocomputing #vintagecomputer #computers
Un altro "peso massimo" della storia delle console: la Sony PlayStation. Sullo sfondo si distingue la sagoma di un Nintendo 64
Another "heavyweight" of videogame console history: the Sony PlayStation. On the background, the characteristic shape of a Nintendo 64 can be seen.
The worst of the cosmetic damage.
First, the paper tape reader (bottom) has a cracked housing. It's a clean-ish crack all the way through, so I stopped at TAP Plastics today to get some plastic weld for it. It should go back together OK, though it won't be cosmetically perfect.
Next, the paper tape punch (up top) is missing its characteristic clear plastic buttons. While I was at TAP I picked up a foot of 5/8" clear plastic rod, it's a perfect fit. I'll cut 1" sections, melt a little catch into the bottom so they don't pop out the top, and it should look and function as if it were completely original.
With the feared 16K memory expansion that had the nasty habit of falling off the back of the computer when you needed it most. The ZX81 had 1K of RAM, so you needed it most most of the time.
Here is a front view of the 1802 Membership Card retro-computing in an Altoid can. The numbered switches are used to enter instructions and data. The switches and pushbutton on the left are used to control the state of the computer. The 'Q' and data LEDs are the only provided output. The parallel port and power connector round everything out.
Olivetti Philos 44
it.wikipedia.org/wiki/Olivetti
Retrocomputing (a portmanteau of retro and computing) is the use of early computer hardware and software today. Retrocomputing is usually classed as a hobby and recreation rather than a practical application of technology; enthusiasts often collect rare and valuable hardware and software for sentimental reasons. However some do make use of it.[1] Retrocomputing often gets its start when a computer user realizes that expensive fantasy systems like IBM Mainframes, DEC Superminis, SGI workstations and Cray Supercomputers have become affordable on the used computer market, usually in a relatively short time after the computers' era of use.
en.wikipedia.org/wiki/Retrocomputing
Con il termine retrocomputing si indica una attività di "archeologia informatica" che consiste nel reperire, specialmente a costi minimi, computer di vecchie generazioni, che hanno rappresentato fasi importanti dell'evoluzione tecnologica, ripararli se sono danneggiati, metterli nuovamente in funzione e preservarli.
The LED daughter board mounts behind the HEX keypad fascia board, locating each LED adjacent to its corresponding key.
Retrocomputing (a portmanteau of retro and computing) is the use of early computer hardware and software today. Retrocomputing is usually classed as a hobby and recreation rather than a practical application of technology; enthusiasts often collect rare and valuable hardware and software for sentimental reasons. However some do make use of it.[1] Retrocomputing often gets its start when a computer user realizes that expensive fantasy systems like IBM Mainframes, DEC Superminis, SGI workstations and Cray Supercomputers have become affordable on the used computer market, usually in a relatively short time after the computers' era of use.
en.wikipedia.org/wiki/Retrocomputing
Con il termine retrocomputing si indica una attività di "archeologia informatica" che consiste nel reperire, specialmente a costi minimi, computer di vecchie generazioni, che hanno rappresentato fasi importanti dell'evoluzione tecnologica, ripararli se sono danneggiati, metterli nuovamente in funzione e preservarli.
Un Sinclair C5! Sembra in buono stato, chissà se funziona ancora?
A Sinclair C5! Looks in good condition, who knows if it still works?
This is the upper board of the two that comprise the membership card. It contains the input and control switches, "Q" LED, along with a parallel port and some supporting logic chips.
This was pretty much the same as the ZX81, except with a better keyboard and more memory.
It was made and marketed in the US by Timex, who licensed the equivalent Sinclair machines and improved them.
Grazie all’iniziativa di Bruno Grampa, nella prestigiosa cornice del parco di Villa Toeplitz a Varese si è tenuto domenica 27 aprile 2003, presso il MUel- Museo Elettronico, la prima edizione di “Varese Retrocomputing”. La manifestazione si è articolata su un intero pomeriggio, a partire dalle ore 14:30, con interventi di esperti e collezionisti di retrocomputing che hanno presentato, in funzione, numerosi computer che hanno fatto la storia dell’informatica. All About Apple è stata presente con il simbolo dell’AMUG e del Museo, l’Apple Lisa, su cui è stato tenuto un keynote da Alessio Ferraro.