dogber1

6 ms·

1.
by dogber1 5y ago
Better gate control results in lower leakage compared to fins, and there are probably also some better thermals associated with this approach due to the surrounding metals. However, the density is crap - stackable nanoribbons are likely the
2.
by dogber1 5y ago
And on top of that, you can make almost any material lase. There have been entertaining experiments where folks used yogurt, apple juice, hair dye, and other fun liquids in pumped lasers, exploiting some molecular band transition that was a
3.
by dogber1 5y ago
I'm afraid that's not even remotely true. Just two counterexamples: - MLC flash storage devices use multiple levels to store/retrieve bits [1], - Lots of control systems are implemented with analog PIDs [2]. A trivial example
4.
by dogber1 5y ago
That's indeed done all the time in electronics: for example, RF CMOS usually trailing on a node three or four generations behind the bleeding edge. However, all-optical/photonic computing is just intrinsically so much worse than e
5.
by dogber1 5y ago
In principle, yes, but: - lower wavelength light is harder to confine within waveguides (or transmissive optics), and messes up atoms when colliding (think of x-rays), - finding an efficient source at lower wavelengths is one of the main st
6.
by dogber1 5y ago
Switching/routing usually requires significant information processing (e.g. decode packet header, match destination address against routing tables, etc.). This necessitates 10k or more gates. All-optical computing can't deliver th
7.
by dogber1 5y ago
No - that's just a neat trick to enhance the precision in the measurement of non-commuting observable quantities of interest.
8.
by dogber1 5y ago
In reality, all-optical computing is mostly a terrible idea: fundamentally, it cannot reach the integration density of electronics. It boils down to the elementary differences between Fermions (electrons, neutrons, etc.) and Bosons (photons
9.
by dogber1 5y ago
That is an extremely common practice in the industry. Every large chip design house does this to maximize line yield - it is called "binning" [1]. [1] https://en.wikipedia.org/wiki/Product_binning#Semiconducto
10.
by dogber1 6y ago
No, that's just some marketing verbiage with no real physical correspondence.
11.
by dogber1 6y ago
So many hyperbolic claims that boil down to a moderate 33% area benefit with very little data about mundane things like long-term reliability, or process variation. Every time an article mentions some buzzword like 'graphene', it
12.
by dogber1 6y ago
Linearity, on-state loss, pole-to-pole isolation, and breakdown will be atrocious. It makes for a nice clickbaity publication though.
13.
by dogber1 7y ago
That's a great re-implementation from some stuff I did eons ago [0]. BIOS passwords are indeed a complete joke as means to secure access. There are a bunch of vendors out there who moved the authentication off from the BIOS/CPU to
14.
by dogber1 10y ago
I do not understand the proclaimed 3X increase of design cost per finfet node, particularly in the context of digital ICs. Most cell designs are highly repetitive, so the increased design complexity should only add a one-time offset to the
15.
by dogber1 10y ago
The bypass algorithms have largely remained unchanged when the industry moved to EFI. Most vendors (Lenovo, Dell, Acer, Asus, Toshiba, Fujitsu, ...) simply wrapped their bypass algorithms into some DXE driver and called it a day.
16.
by dogber1 10y ago
Apple is doing a much better job than all the rest of the PC vendors. Even those vendors that I haven't published keygens for [1] have just stupendously unsound bypass mechanisms for BIOS passwords. [1] https://dogber1.blogs
17.
by dogber1 12y ago
No, it won't: on the length scale of a chip, the power efficiency of an electrical-optical-electrical transmission line is an order of magnitude worse than direct electrical transmission, regardless of the actual technology. Also, opti
18.
by dogber1 13y ago
The GPU is still an ARM Mali T6xx which is mostly unsupported, i.e. removing Chrome OS and running "pure" linux is going to be dreadfully slow for lack of 2D/3D acceleration. It's a shame that ARM hasn't released an
19.
by dogber1 13y ago
If you get around replacing chrome OS with linux and reflashing the firmware with uboot, you'll lose GPU acceleration (3D and 2D). ARM is pretty shitty about releasing specs for their GPUs, so the Chromebook GPU (Mali T604) remains unu