#Hardware and Technology

[nasa]

The Nancy Grace Roman Space Telescope’s flight harness is transferred from the mock-up structure to the spacecraft flight structure.

Your Body is Wired Like a NASA Space Telescope. Sort Of.

If our Nancy Grace Roman Space Telescope were alive, its nervous system would be the intricate wiring, or “harness,” that helps different parts of the observatory communicate with one another. Just like the human body sends information through nerves to function, Roman will send commands through this special harness to help achieve its mission: answering longstanding questions about dark energy, dark matter, and exoplanets, among other mind-bending cosmic queries. 

Roman’s harness weighs around 1,000 pounds and is made of about 32,000 wires and 900 connectors. If those parts were laid out end-to-end, they would be 45 miles long from start to finish. Coincidentally, the human body’s nerves would span the same distance if lined up. That’s far enough to reach nearly three-fourths of the way to space, twice as far as a marathon, or eight times taller than Mount Everest! 

An aerial view of the harness technicians working to secure Roman’s harness to the spacecraft flight structure.

Over a span of two years, 11 technicians spent time at the workbench and perched on ladders, cutting wire to length, carefully cleaning each component, and repeatedly connecting everything together.  

Space is usually freezing cold, but spacecraft that are in direct sunlight can get incredibly hot. Roman’s harness went through the Space Environment Simulator – a massive thermal vacuum chamber – to expose the components to the temperatures they’ll experience in space. Technicians “baked” vapors out of the harness to make sure they won’t cause problems later in orbit.  

Technicians work to secure Roman’s harness to the interior of the spacecraft flight structure. They are standing in the portion of the spacecraft bus where the propellant tanks will be mounted.  

The next step is for engineers to weave the harness through the flight structure in Goddard’s big clean room, a space almost perfectly free of dust and other particles. This process will be ongoing until most of the spacecraft components are assembled. The Roman Space Telescope is set to launch by May 2027. 

Learn more about the exciting science this mission will investigate on X and Facebook. 

Make sure to follow us on Tumblr for your regular dose of space! 

[scipunk]

Serial Experiments Lain (1998)

Setting up the computer...

[zman80]

Data across the globe

[mechanicx]

[nando161mando]

[techtimechronicles24]

🇺🇲 Dive into the history of the Apple III (styled as apple ///), a computer that marked an ambitious step forward for Apple Inc. Released in May 1980, the Apple III was designed to be a successor to the highly successful Apple II series, aimed at the business market.

💻 The Apple III was envisioned as a business-oriented machine that would bridge the gap between personal and professional computing. Apple sought to improve upon the Apple II's capabilities, both in terms of hardware and software, while maintaining backward compatibility. Steve Jobs, who was heavily involved in its design, emphasized aesthetics and functionality. The Apple III featured a sleek design and was intended to be more robust and reliable, with enhanced performance.

⚙️ The Apple III was powered by a 2 MHz Synertek 6502A processor, an improvement over the Apple II's 1 MHz processor. It came with 128 KB of RAM, expandable to 512 KB, which was a significant upgrade at the time. The computer featured an internal 140 KB 5.25-inch floppy disk drive. An external floppy drive could also be connected for additional storage. The Apple III supported a variety of display modes, including 24 lines of 80-column text and multiple graphics modes. It ran on Apple SOS (Sophisticated Operating System), which offered advanced features such as hierarchical file system and support for multiple users.

💡 The Apple III introduced several innovations, including a built-in clock, advanced sound capabilities, and a new keyboard design. However, it also faced significant challenges: The Apple III initially suffered from severe overheating problems due to the lack of a cooling fan. This led to hardware failures, with chips often becoming dislodged from their sockets. Early units were plagued by reliability issues, which hurt the computer’s reputation in the business market.

💔 Despite its rocky start, Apple released an improved version in 1981, known as the Apple III Plus, which addressed many of the initial issues. The Apple III ultimately did not achieve the commercial success Apple had hoped for, with only about 65,000 units sold. Nevertheless, the Apple III played a crucial role in Apple's development. The lessons learned from its challenges influenced the design and engineering of future Apple products, including the highly successful Apple Macintosh.

💾 The Apple III stands as a fascinating chapter in the history of computing. While it may not have achieved the commercial triumph of its predecessor or successors, its ambition and the innovative spirit behind its design left an indelible mark on Apple’s evolution. Today, the Apple III is remembered as a symbol of both the challenges and the relentless drive for innovation that characterize Apple's journey.

[cravinganescape]

Rare 1970s neon green transparent rotary dial telephone !

[computer-nerd-girl]

[zadokthepriest]

via Kane

[wojakgallery]

Title/Name: Wojak Blue Circuit Board Wojak Series: Feels Guy (Variant) Image / Art by: Unknown Main Tag: Circuit Board Wojak

[nasa]

Our Roman Space Telescope’s Dish is Complete!

NASA engineers recently completed tests of the high-gain antenna for our Nancy Grace Roman Space Telescope. This observatory has some truly stellar plans once it launches by May 2027. Roman will help unravel the secrets of dark energy and dark matter – two invisible components that helped shape our universe and may determine its ultimate fate. The mission will also search for and image planets outside our solar system and explore all kinds of other cosmic topics.

However, it wouldn’t be able to send any of the data it will gather back to Earth without its antenna. Pictured above in a test chamber, this dish will provide the primary communication link between the Roman spacecraft and the ground. It will downlink the highest data volume of any NASA astrophysics mission so far.

The antenna reflector is made of a carbon composite material that weighs very little but will still withstand wide temperature fluctuations. It’s very hot and cold in space – Roman will experience a temperature range of minus 26 to 284 degrees Fahrenheit (minus 32 to 140 degrees Celsius)!

The dish spans 5.6 feet (1.7 meters) in diameter, standing about as tall as a refrigerator, yet only weighs 24 pounds (10.9 kilograms) – about as much as a dachshund. Its large size will help Roman send radio signals across a million miles of intervening space to Earth.

At one frequency, the dual-band antenna will receive commands and send back information about the spacecraft’s health and location. It will use another frequency to transmit a flood of data at up to 500 megabits per second to ground stations on Earth. The dish is designed to point extremely accurately at Earth, all while both Earth and the spacecraft are moving through space.

Engineers tested the antenna to make sure it will withstand the spacecraft’s launch and operate as expected in the extreme environment of space. The team also measured the antenna’s performance in a radio-frequency anechoic test chamber. Every surface in the test chamber is covered in pyramidal foam pieces that minimize interfering reflections during testing. Next, the team will attach the antenna to the articulating boom assembly, and then electrically integrate it with Roman’s Radio Frequency Communications System.

Learn more about the exciting science this mission will investigate on Twitter and Facebook.

Make sure to follow us on Tumblr for your regular dose of space!

[thedepartmentofdiscoveries]

[zman80]

Hyperspace Commodore

[basic-retro-programming]

Source: MunyArist on Pinterest

Post #265: Advertisement by Airflow, When your computer room air conditioner fails, you may adapt. But what about your hardware?, 2023.

[techtimechronicles24]

🇯🇵 Unveiling the Toshiba T1100: A Journey into the Dawn of Portable Computing!

💻 In the early 1980s, a revolutionary device emerged, transforming the landscape of personal computing forever. The Toshiba T1100, released in 1985, marked a significant milestone in the history of portable computers. The Toshiba T1100 has subsequently been described by Toshiba as "the world's first mass-market laptop computer".

🌐 The Toshiba T1100 was among the first truly portable computers, designed for professionals and enthusiasts seeking computing power on the go. Weighing approximately 4.1 kilograms (9 pounds) with its lead-acid battery, this innovative machine provided users with unprecedented mobility.

⚙️ Equipped with an Intel 80C88 processor running at 4.77 MHz and boasting 256 KB of RAM, the Toshiba T1100 offered impressive computing capabilities for its time. Its 9.6-inch monochrome LCD screen provided a crisp display, while the detachable keyboard enhanced usability.

💾 The T1100 introduced several innovative features, including a built-in 3.5-inch floppy disk drive—a rarity at the time—which allowed for data storage and transfer with ease. This model also featured MS-DOS as its operating system, providing a familiar computing environment.

📈 The Toshiba T1100 set a new standard for portable computing, demonstrating the feasibility and practicality of laptops for business and personal use. Its success paved the way for subsequent generations of laptops, influencing the evolution of mobile computing worldwide.

👨‍💻 For professionals in various industries, the Toshiba T1100 represented a game-changer, enabling efficient data management, word processing, and spreadsheet tasks on the move. Its portability and functionality empowered users to work beyond traditional office environments.

🌟 Today, the legacy of the Toshiba T1100 lives on in the sleek, lightweight laptops and notebooks that have become indispensable tools for modern professionals and digital nomads. This groundbreaking device remains a testament to Toshiba's commitment to innovation and excellence in the field of computing. The Toshiba T1100 remains an iconic symbol of the dawn of portable computing—a chapter in the ongoing story of technological progress that continues to shape our digital world.

[retrocgads]

UK 1998