Hardware Archive

But now, seven years later, Lenovo is introducing a new take on the tablet computer. No, Lenovo didn't make a Courier, but its new Yoga Book might inspire the same reactions. It's about the size and shape of a hardcover children's book, has two panels attached by a hinge, and can be used with your fingers or with its included pen. It even does some tricks with the pen that we've never seen before, like letting you write with real ink and have it all digitized. Lenovo didn't set out to build just another tablet with the Yoga Book - it wanted to make something that was better for getting work done than what is already out there.

But in the process, it made a computer that's both futuristic and relatable at the same time, just like the original Courier concept. I wanted to use the Yoga Book from the first time I laid eyes on it, and if you're anything like me, you will, too. And unlike the Courier, you will actually be able to buy the Yoga Book.

I'm covering the topic of FreeRTOS and interrupts in my university lecture material. But I have seen so many wrong usage of interrupts with the RTOS that I think it deserves a dedicated article. The amazing thing I see many times: even if the interrupts are configured in a clearly wrong way, surprisingly the application 'seems' to work, at least most of the time. Well, I think everyone agrees that 'most of the time' is not good enough. Because problems with interrupts are typically hard to track down, they are not easy to fix.

I worked for Lexra, a scrappy CPU company, now out of business. The Lexra story is filled with lessons about the business of selling microprocessors and semiconductor intellectual property. I have found many incorrect statements published about Lexra. I hope to set the record straight.

A look into Dr Abrasive's lab and a super detailed behind-the-scenes of what it took to engineer a plug-in-flash-card for the Sega Saturn.

Alan Kay recently loaned his 1970's Xerox Alto to Y Combinator and I'm helping with the restoration of this legendary system. The Alto was the first computer designed around a graphical user interface and introduced Ethernet and the laser printer to the world. The Alto also was one of the first object-oriented systems, supporting the Mesa and Smalltalk languages. The Alto was truly revolutionary when it came out in 1973, designed by computer pioneer Chuck Thacker.

Earlier this month we took a look at ARM’s new Mali-G71 GPU. Based on the company's equally new Bifrost architecture, Mali-G71 marks a significant architectural change for the Mali family, incorporating a modern thread level parallelism (TLP) centric execution design. The Mali GPU is in turn the heart of ARM’s graphics product stack - what ARM calls their Mali Multimedia Suite - but in practice it is not a complete graphics and display solution on its own.

As part of their IP development process and to allow SoC integrators to mix and match different blocks, the Mali GPU is only the compute/rendering portion of the graphics stack; the display controller and video encode/decode processor are separate. Splitting up these blocks in this fashion gives ARM's customers some additional flexibility, allowing something like Mali-G71 to be mixed with other existing controllers (be it ARM or otherwise), but at the same time these parts aren't wholly divorced within ARM. Even though they’re separate products, ARM likes to update all of the parts of their graphics stack in relative lockstep. To that end, with the Mali GPU core update behind them, this week ARM is announcing an updated video processor, codenamed Egil, to replace the current Mali-V550 processor.

One of the tricks you can do on the C64 involves manipulating the video chip into reading the graphics data at an offset from where it's usually located. This allows you to scroll the display horizontally, and the trick is called VSP for Variable Screen Position. However, some machines crash when you attempt this, and the reason for that has always been a mystery. Not anymore.

This year we celebrate the 50th anniversary of a home computer built and operated more than a decade before 'official' home computers arrived on the scene. Yes, before the 'trinity' of the Apple II, the Commodore PET and the Radio Shack TRS-80 - all introduced in 1977 - Jim Sutherland, a quiet engineer and family man in Pittsburgh, was building a computer system on his own for his family. Sutherland configured this new computer system to control many aspects of his home with his wife and children as active users. It truly was a home computer - that is, the house itself was part of the computer and its use was integrated into the family's daily routines.

There is something special happening in a generic office park in an uninspiring suburb near Fort Lauderdale, Florida. Inside, amid the low gray cubicles, clustered desks, and empty swivel chairs, an impossible 8-inch robot drone from an alien planet hovers chest-high in front of a row of potted plants. It is steampunk-cute, minutely detailed. I can walk around it and examine it from any angle. I can squat to look at its ornate underside. Bending closer, I bring my face to within inches of it to inspect its tiny pipes and protruding armatures. I can see polishing swirls where the metallic surface was “milled.” When I raise a hand, it approaches and extends a glowing appendage to touch my fingertip. I reach out and move it around. I step back across the room to view it from afar. All the while it hums and slowly rotates above a desk. It looks as real as the lamps and computer monitors around it. It’s not. I’m seeing all this through a synthetic-reality headset. Intellectually, I know this drone is an elaborate simulation, but as far as my eyes are concerned it’s really there, in that ordinary office. It is a virtual object, but there is no evidence of pixels or digital artifacts in its three-dimensional fullness. If I reposition my head just so, I can get the virtual drone to line up in front of a bright office lamp and perceive that it is faintly transparent, but that hint does not impede the strong sense of it being present. This, of course, is one of the great promises of artificial reality - either you get teleported to magical places or magical things get teleported to you. And in this prototype headset, created by the much speculated about, ultrasecretive company called Magic Leap, this alien drone certainly does seem to be transported to this office in Florida - and its reality is stronger than I thought possible.

RISC-V is a new general-purpose instruction-set architecture (ISA) that's BSD licensed, extensible, and royalty free. It's clean and modular with a 32-, 64-, or 128-bit integer base and various optional extensions (e.g., floating point). RISC-V is easier to implement than some alternatives - minimal RISC-V cores are roughly half the size of equivalent ARM cores - and the ISA has already gathered some support from the semiconductor industry.

Qubes OS, the security-focused operating system that Edward Snowden said in November he was "really excited" about, announced this week that laptop maker Purism will ship their privacy-focused Librem 13 notebook with Qubes pre-installed.

Built on a security-hardened version of the Xen hypervisor, Qubes protects users by allowing them to partition their digital lives into virtual machines. Rather than focus solely on security by correctness, or hide behind security by obscurity, Qubes implements security by isolation - the OS assumes that the device will eventually be breached, and compartmentalises all of its various subsystems to prevent an attacker from gaining full control of the device. Qubes supports Fedora and Debian Linux VMs, and Windows 7 VMs.

Solu might look like a drinks coaster but don't put your coffee on it; this is a four-inch wide block of curved, wood-encased computer with an edge-to-edge touch screen. Inside is a powerful 2.3GHz processor, battery and Wi-Fi capability. It can be used on its own or paired with a keyboard and a display up to a resolution of 4K. When paired in this way, the Solu acts as an input device instead of a mouse.

Intel and Microsoft are teaming with three leading PC makers on a new ad campaign designed to make potential computer buyers more aware of all the things a modern PC can do.

The campaign, with the slogan "PC Does What?" is set to be announced Thursday at a Webcast featuring the companies' top marketing executives, according to sources familiar with the companies' plans. It will feature TV, print and online advertisements, sources said.