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💾🖥️📖 Inside the Personal Computer: An Illustrated Introduction in 3 Dimensions: A Pop-Up Guide. Text by Sharon Gallagher. Paper engineering and design by Ron van der Meer (1984). Posting this and more as we get our #retrocomputing series ready for next month!
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Motorola Bravo Express – The compact, iconic pager of the 1990s
A classic Motorola Bravo Express pager from the 1990s, featuring the iconic rugged black plastic design typical of that era. This compact one-way pager shows a large backlit display window, three tactile buttons (left/right arrows and select), and the characteristic Motorola logo together with the model name “BRAVO EXPRESS” embossed on the front. A true piece of communication history before the smartphone era – small, durable, and once carried by millions.
New emote Vorpal rend commissioned from my i added some pride varieties for fun and flavor, made sure to check him out and post the emote so he remember
Loki, ruler of the TVA. . . While chatting with @imchristinad84 , we discovered this Heathkit Mohawk Ham Radio resembles some of the old school equipment in @officialloki , and thus the photo op was born. Slides are of the Ham radio for those interested, and the last photo is #bumblebucky and #bumblefalcon . . . #tva #loki #lokilaufeyson #threelizards #missminutes #tsumtsums #tomhiddleston #mysteryminis #funko #miniloki #hamradio #oldschooltech #vintage #antique #lokijudgingyou #falcon#iambuckydoll #buckydoll #wintersoldier #bucky #buckybarnes #jamesbarnes #mcu #marvel #sebastianstan #captainamerica #toyphotography #toysofinstagram (at TVA) https://www.instagram.com/p/CQZGjjOlNeL/?utm_medium=tumblr
10g gorilla glue temple ball. Needless to say my gloves were sticky as fuck. #templeball #templeballs #hash #gorillaglue #gorillaglue4 #croptober #neverends #nwnr #ommp #oldschoolhash #oldschooltech #scissorhash #stickygloves #waxwednesday #templeballtuesday #justsmokeit #hashlife #oregonhash #oregontempleball #oregontemple #420 #hightimes
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🎄💾🗓️ Day 4: Retrocomputing Advent Calendar - The DEC PDP-11! 🎄💾🗓️
Released by Digital Equipment Corporation in 1970, the PDP-11 was a 16-bit minicomputer known for its orthogonal instruction set, allowing flexible and efficient programming. It introduced a Unibus architecture, which streamlined data communication and helped revolutionize computer design, making hardware design more modular and scalable. The PDP-11 was important in developing operating systems, including the early versions of UNIX. The PDP-11 was the hardware foundation for developing the C programming language and early UNIX systems. It supported multiple operating systems like RT-11, RSX-11, and UNIX, which directly shaped modern OS design principles. With over 600,000 units sold, the PDP-11 is celebrated as one of its era's most versatile and influential "minicomputers".
Check out the wikipedia page for some great history, photos (pictured here), and more -
And here's a story from Adafruit team member, Bill!
The DEC PDP-11 was the one of the first computers I ever programmed. That program was 'written' with a soldering iron.
I was an art student at the time, but spending most of my time in the engineering labs. There was a PDP-11-34 in the automation lab connected to an X-ray spectroscopy machine. Starting up the machine required toggling in a bootstrap loader via the front panel. This was a tedious process. So we ordered a diode-array boot ROM which had enough space to program 32 sixteen bit instructions.
Each instruction in the boot sequence needed to be broken down into binary (very straightforward with the PDP-11 instruction set). For each binary '1', a diode needed to be soldered into the array. The space was left empty for each '0'. 32 sixteen bit instructions was more than sufficient to load a secondary bootstrap from the floppy disk to launch the RT-11 operating system. So now it was possible to boot the system with just the push of a button.
I worked with a number DEC PDP-11/LSI-11 systems over the years. I still keep an LSI-11-23 system around for sentimental reasons.
Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!
🎄💾🗓️ Day 8: Retrocomputing Advent Calendar - Commodore PET 🎄💾🗓️
The Commodore PET (Personal Electronic Transactor) came out in 1977 and was among the earliest personal computers - featuring an all-in-one design with a keyboard, monochrome monitor, and cassette deck - all within a single chassis. Powered by an MOS Technology 6502 microprocessor running at 1 MHz, it had 4 KB of RAM and was expandable up to 96 KB in later models. The PET had Commodore BASIC stored in ROM, allowing users to write and execute programs directly. Its display supported text resolutions of 40×25 or 80×25 characters, using the PETSCII character set for semigraphic capabilities. While early models did not have sound, later versions included a basic beeper. PET's all-in-one design and user-friendly interface contributed to its popularity in education and business, and it sold approximately 219,000 units before its discontinuation in 1982.
Check out the wikipedia page for some extended history and great photos -
Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!
🎄💾🗓️ Day 13: Retrocomputing Advent Calendar -🎄Amiga 500 💾🗓️
The Amiga 500 is considered one of Commodore's most important home computers, introduced in 1987; it was important because of how advanced the features were for the time. It was based on a Motorola 68000 CPU running at 7.16 MHz in NTSC versions and at 7.09 MHz for PAL ones, with the main version of 512 KB RAM expandable up to 9 MB. Its OCS provided respectable graphics performance, going up to 736×567 interlaced, with 32 colors out of 4096. The sound system consisted of four 8-bit PCM channels and could give out stereo at as high as 28 kHz. With the keyboard integrated and a compact design, it was ready for home users, while the multitasking operating system, AmigaOS, differentiated it from the rest. At a price the market could afford and featuring multimedia capabilities, this combination contributed to its popularity as it went on to sell about 2.6 million units worldwide.
Making of the Amiga bouncing ball. https://www.generationamiga.com/2020/04/14/amiga-history-the-story-of-the-boing-ball/
Have first computer memories? Post’em up in the comments, or post yours on socialz’ and tag them #firstcomputer #retrocomputing – See you back here tomorrow!
