Lmst

TIL all magnetic disk drives are technically #RLL drives, in that they all use a run-length-limited encoding, including older hard drives that came out before it became a thing to label hard drives “RLL”.

“RLL” is basically just a misnomer/placeholder for a hard drive that uses a newer/more complex encoding scheme than #MFM.

https://en.wikipedia.org/wiki/Run-length_limited#History

#HDD #retrocomputing

The rear side of one Retro HDD in zoomed detail

#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park

This photograph shows a close-up of a green circuit board, likely from a hard disk drive. The board is densely populated with numerous electronic components, including integrated circuits (chips), resistors, capacitors, and various other small parts. A large silver metallic component sits on the right side, with a ribbon cable connected to it. A sticker is visible in the upper-left corner with the text “WARNING VOID IF TAMPERED WITH”. There is another sticker, located in the lower portion of the board with the text “ASSY TN. 51691990”, and “CNMD006900690”.

Provided by @altbot, generated privately and locally using Gemma3:27b

🌱 Energy used: 0.121 Wh

The front side of one Retro HDD in zoomed detail

#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park

The composition shows a dismantled hard disk drive (HDD) lying on a textured, red surface. The HDD is primarily black and silver with several exposed components visible. A circular platter, with a series of concentric rings, is prominently displayed on the left side, with a metallic arm extending towards the center. The right side of the HDD reveals a complex arrangement of circuit boards and small electronic parts. The textured red surface appears to be a rug or fabric with a dense pile.

Provided by @altbot, generated privately and locally using Gemma3:27b

🌱 Energy used: 0.090 Wh

The front side of a couple of retro HDDs

#RetroTechnology #RetroComputing #HDD #RLL #MFM #oxidation #O² #platter #arm #Park

The photograph shows two disassembled hard disk drive (HDD) platters lying on a red, textured fabric surface. Each platter is circular, with a central spindle hole and a shiny metallic surface. Visible on each are several smaller components including a circular magnetic disk with a central hub, and thin, flexible circuit boards with various integrated circuits and connectors. A small label on the middle platter reads “Model# HDV221D”. The components are arranged slightly overlapping, and appear to be partially taken apart, revealing the internal structure of the HDDs. The texture of the red fabric is visible in the background.

Provided by @altbot, generated privately and locally using Gemma3:27b

🌱 Energy used: 0.115 Wh

Rapid Lithium Limited ( #RLL ) has released " Acquisition of Major Silver Project in NSW " on Thu 22 May at 08:26 AEST #today #government #Mining #UnitedStates #Gold
https://grafa.com/asset/rapid-lithium-limited-28301-rll.asx?utm_source=asxmktsensitive&utm_medium=mastodon&utm_campaign=rll.asx

Rapid Lithium Limited ( #RLL ) has released " Quarterly Activities/Appendix 5B Cash Flow Report " on Wed 30 Apr at 08:58 AEST #tax #government #Commodity #China #Mining
https://grafa.com/asset/rapid-lithium-limited-28301-rll.asx?utm_source=asxmktsensitive&utm_medium=mastodon&utm_campaign=rll.asx

Rapid Lithium Limited ( #RLL ) has released " Execution of SPA for Prophet River Ga-Ge Project " on Wed 02 Apr at 08:47 AEST #Russia #China #UnitedStates #Australia #News
https://grafa.com/asset/rapid-lithium-limited-28301-rll.asx?utm_source=asxmktsensitive&utm_medium=mastodon&utm_campaign=rll.asx

Even though My Fujitsu hard drives are many decades old, the drive still spin at 10.000 RPM

#RetroComputing #LastCentury #HDD #MFM #RLL #IDE #Post

Technology we could rely on in the last century.

It started with Winchester Drives then the MFM & the RLL drives, which needed manual parking & low level formatting.
Later it became the three and a half inch Magneto mechanical hard drive.

On my Amiga computers the Fujitsu HDDs spin* at a dizzying 10.000 RPM!

The Fujitsu is an Ultra Wide 68 pins SCSI HDD, with a transfer speed so high my Amiga never had to wait for data from the drive.

#RetroComputing #LastCentury #HDD #MFM #RLL #IDE #Post

The warm composition shows a close-up of a HDD with a series of gold-colored pins on one side, likely a data connector or interface. The device is positioned diagonally, with the pins facing the viewer. The background is dark, with a textured surface that appears to be a fabric, possibly a blanket or a piece of clothing. Behind the device, there is a partially visible blue and white object, which could be a case for electronics or a similar item. The lighting is dim, casting shadows and highlighting the metallic sheen of the pins. The overall composition is simple, focusing on the device and its immediate surroundings, leaving the rest in a simple bokeh

The photograph shows an open hard disk drive (HDD) placed on a dark, textured surface, likely a towel or fabric. The HDD is disassembled, revealing its internal components. The platter, a large, circular metallic disc, is visible in the center, with a shiny surface and some visible scratches. The actuator arm, which moves the read/write head across the platter, is metallic and has a complex structure with several screws and components. The actuator arm is connected to a motor assembly, which is also metallic and has a series of gears and bearings. The casing of the HDD is black, with visible screws and mounting points. The image is well-lit, and warmed up with an 81A warming filter, highlighting the reflective surfaces and mechanical details of the HDD.

@redcrew not to mention some old #MFM & #RLL hard drives if anyone even remembers those. 🤣

#RLL

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