1988 – While not the first version of the PS/2, the Model 70 was introduced with the 80386 processor. 16, 20, and 25 MHz clock speeds. The Model 70 also used a 25 MHz Intel 486 processor in a complex called the Power Platform.
If you wanted to upgrade to the 80486, you would have to replace the PS/2’s BIOS chip along with the processor board.
The model 70-A21 sold for $11,295 and included 2 MB of RAM, 120 MB ESDI hard drive, MS-DOS and OS/2. If you wanted a monitor for it, you would have to put down an additional $595 for the 8512 VGA.
Model 70 was a desktop case and Model 80 was a tower. IBM also introduced the PS/2 Model 25 LS and PS/2 Model 50 Z.
2003 – Matt Mullenweg and Mike Little created a Fork of B2/cafelog. From there, WordPress was born. Since its release, WordPress has taken over Content Management Systems (CMS) with its ease of use and plethora of programmers that have made plugins, themes and other tweaks to the system since. The current version is 3.5.1 which has been downloaded over 18 million times.
1985 – The Cray X-mp/48 Supercomputer begins operation in San Diego Supercomputer Center in California. The $15 million dollar supercomputer could process 400 megaflops (200 per processor). It was a shared-memory parallel vector processor and supported 2 or 4 million 64-bit words of main memory in 16 or 32 banks.
The first Cray didn’t get installed until October 1986.
Cray X-MP/48 replaced the Cray-1. It was succeeded by the Cray Y-MP8/864 in 1990.
Movies such as “the Last Starfighter” were rendered using the Cray Supercomputer.
The paper was called “Bitcoin: A Peer-to-Peer Electronic Cash System” by Satoshi Nakamoto. It was posted to a cryptography mailing list. This was a roadmap to the creation of the crypto-currency, which officially launched on January 3, 2009.
The Abstract:
A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network. The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work. The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power. As long as a majority of CPU power is controlled by nodes that are not cooperating to attack the network, they’ll generate the longest chain and outpace attackers. The network itself requires minimal structure. Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will, accepting the longest proof-of-work chain as proof of what happened while they were gone.
The domain name “Bitcoin.org” was registered on August 18th. Since then, this premiere currency has seen some volitile transactions, jumping up to as high as $15,000.
1985 – The Cray X-mp/48 Supercomputer begins operation in San Diego Supercomputer Center in California. The $15 million dollar supercomputer could process 400 megaflops (200 per processor). It was a shared-memory parallel vector processor and supported 2 or 4 million 64-bit words of main memory in 16 or 32 banks.
The first Cray didn’t get installed until October 1986.
Cray X-MP/48 replaced the Cray-1. It was succeeded by the Cray Y-MP8/864 in 1990.
Movies such as “the Last Starfighter” were rendered using the Cray Supercomputer.
This Day in Tech History podcast show notes for December 4
Happy Halloween! 1892 – Arthur Conan Doyle publishes the Adventures of Sherlock Holmes. After Doyle attended medical school, he moved to London, where he practiced medicine and wrote the first Sherlock Holmes story, “A Study in Scarlet”.
This Day in Tech History podcast show notes for October 31
2003 – Matt Mullenweg and Mike Little created a Fork of B2/cafelog. From there, WordPress was born. Since its release, WordPress has taken over Content Management Systems (CMS) with its ease of use and plethora of programmers that have made plugins, themes and other tweaks to the system since. The current version is 3.5.1 which has been downloaded over 18 million times.
Full Day in Tech History podcast show notes for May 27
2003 – Matt Mullenweg and Mike Little created a Fork of B2/cafelog. From there, WordPress was born. Since its release, WordPress has taken over Content Management Systems (CMS) with its ease of use and plethora of programmers that have made plugins, themes and other tweaks to the system since. The current version is 3.5.1 which has been downloaded over 18 million times.
1988 – In competition to IBM OS/2, Microsoft releases 2 versions of Windows 2.1x – One version for x286 computers (aka Windows 286) and one for x386 computers (aka Windows 386). Windows 2/x386 introduced the protected code Kernal – applications would run as a virtual 8086 mode, and MS-DOS programs could run in parallel. Windows 2/x386 also provided EMS emulation, which would give Windows memory management features. System RAM beyond 640k could be used, and felt like banked memory. Finally, it has a Presentation Manager mode, to compete with OS/2
Windows updated this software to 2.11. It was finally retired when Windows 3.0 was released in 1990.
Full Day in Tech History podcast show notes for May 27
This was the promo video for Windows 386. It starred Victoria Carver (as Linda) as an executive who had to save a client. She was given a task to make a presentation by 5 pm. She decided to load and use Windows 386 to build this presentation. Using the “Mission Impossible” theme throughout, Linda is confronted by a fellow employee – Mike the mainframe guy. He wants to help Linda out, but Linda knows that the mainframe subroutines simply take too long to write. He then spots Windows 386.
“You are not suppose to be running OS/2 – we haven’t finished evaluating it” Said Mike, the mainframe guy.
“It’s not OS/2. It’s Microsoft Windows 386. It has the same interface as the OS/2 Presentation Manager. So, when OS/2 is recommended, I’ll be ahead of the learning curve.”
“As usual. What else does it do, besides look like OS/2?”
At this point, Linda shows Mike the interface. Of course, Linda then creates the presentation and keeps the client. The video is written like a cheesy 80’s soap opera, and goes on for twelve minutes.
Other Events in the Day in Technology History
Wang introduces: Wang Personal computer
Batman Debuts in Detective comics #27
Google gives away 4,000 Android phones at Google I/O