fredoralive

I think the article is sorta wrong about the sound setup, the Mega Drive I does have a sound input on the expansion port, and mixes it into its sound output. Otherwise stuff like RF cables wouldn't get Mega CD based audio (and you can do silly stuff like a Mega Drive II, which doesn't have a headphone port, with a Mega CD I).

I was going to say the patch cable setup was just a passive aid to take the Mega Drive I's minijack stereo output (the big DIN AV connector on the rear only does mono) to a more serious two RCA jack setup. But looking at a schematic to check, it does do more stuff, and apparently connecting the patch cable will reroute stuff so the sound mixing is done on the Mega CD side, not the Mega Drive side (early Mega Drive revisions are somewhat infamous for showing that Sega hadn’t quite mastered the dark arts of analogue sound circuitry).

(I would double check some of this, but my Mega Drive / Mega CD setup isn't to hand, and the CD drive is broken anyway, although I understand the JP/PAL piano tune on the logo screen is all from the Mega CD side?).

Looking at pictures, it appears cameraless iPhones tend to have backs without camera holes / lumps, so some custom work is involved beyond just removing the module. Though there’s going to be a degree of “the government can afford it” in the pricing.

Drilling has some obvious issues, most notable if you go too deep you’re going to hit the screen.

I’m not sure if Sony has been pushing their video disc formats with PlayStations for a while. PS4 Pro was the “4K” upgrade over PS4, but didn’t support UHD Blu-Ray. And there’s been a disc drive-less PS5 since launch.

Stuff like Blu-Ray seems to be becoming a Laserdisc like enthusiasts niche system, I don’t think it’s been a big thing for Sony for a while.

Closing the online store for older systems simultaneously with announcing the dropping of physical media leaves an interesting question for the future. Even if you’ve never bought an online PS3 or Vita game, you’ll still be able to use the systems for physical games. Presumably once the PS6 store is gone, any console is just an ornament if you don’t have access to an account with games already purchased (and how long will the download servers stay up anyway? What is the foreseeable future?).

Well, I guess that answers the question of whether the PS6 will have an awkward snap on disc drive.

Seiko can cover a fairly large group of companies, Seiko Epson is a particular subgroup of it (now somewhat detached from the main group).

Bit of hindsight bias there, DAB was first developed in the mid 1990s, ubiquitous fast wireless IP in everyone’s pockets is at least a decade, perhaps nearer to 20 years in the future. There are quite a few transitionary technologies that we needn’t have developed had we just waited for something better to come along (but without the R&D into some of them…).

(Also doesn’t analogue FM also kinda cut off fairly abruptly?)

Doesn’t RDS mostly solve that for the most common case where frequency changes becomes an issue (car radios).

As far as I know the medium wave services aren’t transmitted from the same antenna as Radio 4 LW, they have separate antenna, albeit with one of them (5 Live) doubling up as one of the support towers for the large long wave T antenna slung between the two large towers on site. Although I suspect the plan would be to move 5 Live to the currently unused Absolute / Virgin antenna eventually so they can demolish the long wave setup.

It’s interesting that the gate arrays are supplied by Seiko, and the only known MCGA systems apart from IBM are from Epson. The bit of Seiko that made the gate arrays appears to be… Seiko Epson. So is it a coincidence? Sub-licensing? Skullduggery?

The article mentions that it is brought out to the connector, multiplexed with the monitor ID pins.

The Disk System RAM Adapter plugged into the cartridge port on a Famicom. The Famicom 15 pin expansion port is just a fancy joystick port (the console is otherwise limited to a pair of hardwired joypads).

The NES expansion port on its own doesn’t seem to have enough lines to support the disk drive, notably it doesn’t have any address lines (CPU or PPU) at all, or the PPU data bus. It seems a bit weird frankly with the choices they made, I’m not sure what it’s actually for, apart from breaking the idea of extra sound chips in cartridges.

It's basically a case of hardware acceleration. Most games consoles and fancier micros have some of dedicated graphics chip that handles the heavy lifting of generating graphics. So for basic game graphics the CPU largely acts as a manager adjusting things like tilemaps and their viewport offsets, and sprite locations (possibly updating things several times mid frame, for fancier effects). The exact setup differs between systems, tilemaps and spites like the SNES is common, though you also have setups with some sort of framebuffer and a Blitter to speed up drawing to it instead.

A traditional IBM PC has a "dumb" framebuffer, where everything is done by the PC. Simply scrolling the background by 1 pixel basically means redrawing a lot of the screen, and you have to keep track of what graphics behind sprite would need to be redrawn after they move etc. As a bonus, on early consumer level 386 and 486 machines you have a mighty processor, but the graphics card is often still on a 16 bit 8MHz(ish) ISA bus. The PC does have an advantage that it's more flexible, so stuff like 3D was easier to do than on a tile-and-sprite setup (especially once we had stuff like VESA and PCI).

Roughly how many varieties of module were used for a full 604 system?

I suspect quite a few as other "modular" systems in the transistor era like the later IBM Standard Modular System and DEC Flip-Chips ended up with plethora of specialised modules, but I'd be interested if that growth had already begun in the tube era.

DOS barely has any concept of processes, let alone threads.

So it’ll all be very do it yourself. Of course with everything running in ring 0, there’s not much that’s going to get in the way of you.

From somewhere in the middle of Nvidia’s endless press waffle:

“The RTX Spark superchip features an NVIDIA Blackwell RTX GPU with 6,144 CUDA cores and fifth-generation Tensor Cores with FP4 precision, connected via the NVIDIA NVLink®-C2C chip-to-chip interconnect to a high-performance, 20-core NVIDIA Grace™ CPU.

MediaTek, a market leader in Arm-based system-on-a-chip designs, collaborated with NVIDIA on the custom CPU design, contributing to its best-in-class power efficiency, performance and connectivity.“

https://nvidianews.nvidia.com/news/nvidia-microsoft-windows-...

Nvidia Grace is an ARM core.

I suspect Windows 2000 (and NT based stuff in general) is too near to modern Windows to be (officially) released. DOS is long dead, but modern Windows still uses the NT kernel and Win32 and so on, and they probably don't want to give an official peek behind the curtain, even if it's an over a quarter century old version.

Yes, Microsoft had established themselves as supplier of BASIC interpreters to most of the US microcomputer manufacturers. There initial contact with IBM was to provide a version of Microsoft BASIC for the new computer.

You wouldn’t be getting a protection fault when protection isn’t enabled.

I should also note this error is the return code for MS-DOS’s memory management functions (such as int 21h ax 48h / 49h), vaguely similar to malloc() returning NULL. It’s not a fatal error, so how it’s handled depends on the programme. It could bail out, perhaps with a more general “out of memory” error, or try and carry on, or perhaps just start overwriting parts of the interrupt vector table as that’s where segment 0007h would start at…

(Though in the latter case on DOS just blindly assuming a memory allocation worked would be rather unwise so you’d hope just about everything checks the carry flag first).

MS-DOS doesn’t have memory protection, so another option is that the running program[1] or something like a TSR or driver could have corrupted the headers.

[1] I guess in a modern system a process can still trash its own malloc, but not the kernel’s page allocation data.

The early 2005 PowerBook G4 was the last pro notebook with DDR surely, as the MacBook Pro your referring to seems to use DDR4.

It would presumably be the August 1991 coup if it were the Soviet Union, as it was one of the factors leading to the USSR dissolving at the end of the year. The Autumn 1993 coup was in the Russian Federation (and the geriatric plotters in the Kremlin kinda won that one). So 1992?

A study commissioned by Microsoft says that Microsoft's offering is better than Apple's? How unexpected.

Also, if they're counting a Microsoft college promo offering on their side, shouldn't they be pricing the Neo at $499 not $599?

MCGA was basically a cut down VGA on the motherboard of the low end 8086 / ISA PS/2s, and both chipsets were introduced at the same time. Next-to-no-one would want a not-quite-VGA that lacks high res colour or EGA modes, so nearly nobody bothered cloning it, only the higher end option. The only known clone is in a couple of Epson models, and like the PS/2s it’s a motherboard integrated chip, not an expansion board.

The article notes that the cartridge had some extra bank switching inside it though, as it went over the address space limit for HuCards.

ASrock have created a "HUDIMM", which is basically a half bandwidth DDR5 DIMM. Basically half the number of chips per DIMM. So kinda a modern day 386SX with its 16 bit bus. Presumably hoping you'll be able get fewer, higher capacity DRAM dice for a competitive price versus a normal DIMM.

On modern systems (all 64 bit AMD, and Intel Core "i" onwards, so quite old now) the memory controller is integrated into the CPU, so what the CPU supports is what you get, and the latest CPUs are DDR5 only. Intel did have a transitional phase of CPUs that can do both DDR4 or 5 depending on motherboard, but AMD it's AM4 = DDR4, AM5 = DDR5.

I think we agree on which building it is. However the street view link I made should show that building there in 2015, then if you look at newer images it spends a few years as an empty space then it’s now a modern building.

Edit: I have no idea how well these deep links to old street views actually work but here are a few of them:

2015: https://www.google.com/maps/@48.8707604,2.3734989,3a,75y,271...

2016: https://www.google.com/maps/@48.8707572,2.3734939,3a,75y,269...

2024: https://www.google.com/maps/@48.8707802,2.3735089,3a,75y,271...

There's also the weird more than an 8080 but not quite a Z80 CPU in the Gameboy (which Sharp seem to call an SM83 when they used it in their microcontrollers).

Although that link doesn't actually have the picture of it today, looking at street view's history mode, what seems to have been the "Fabrique Chocolat" building (it's chimney stack is kinda distinctive, even if it was modified at some point, presumably when an extra story was added) was demolished circa 2015/2016.

Hopefully this line noise goes to the right place: https://www.google.com/maps/@48.8707602,2.3734964,3a,75y,261...

For the "supermarket saving", did you include Asda in the supermarket pool, or as a general pool? They seem to be rather less price competitive than other supermarkets, I'd presumably because of the recentish private equity takeover involving petrol station operator Euro Garages meaning they've kinda opted out of the petrol price war (they're hardly likely to want to undercut their existing forecourts).

Although the other recent private equity takeover of Morrisons led to some sort of deal with Motor Fuels Group to operate their petrol stations (but no ownership stuff in this case?), but they're seemingly still being competitive with Sainsbury's and Tesco's.