Surely, you paid attention to the computer using which the young John Connor hacked PIN-code to the ATM and the access code to the lab in Terminator 2. This computer was the Atari Portfolio. When the movie was showing in theaters in 1991, it seemed beyond the fiction. I was lucky to find it, and I want to share with you its features.
The article will concern the work of “brains”, which operate the engine of your car or motorbike. I will try to explain as simply as possible and in general, what and how is going on.
What do these “brains” do and what are they for? Electronics is an alternative to other systems performing the same functions. The carburetor used to deal with fuel metering, the ignition used to be operated by the mechanical or vacuum advance measure of the ignition advance. In general it can be realized not by electronics alone and it used to be just this way for quite a long time. On the cars, motorbikes, petrol-powered saws, petrol generators and other places worked and keep working the same systems that are to substitute the injector.
Why was it needed to change anything? Why should the existed, proved and rather reliable system be repealed? It is quite simple – a pursuit of economy, ecology and power. Work accuracy of the written above systems is not enough for the supply of the desired level of ecology and powerfulness, electronic systems of the engine controls began to appear long ago.
"I can send the IP packet to Europe faster than I can send a pixel to the screen. How f’d up is that?" John Carmack asked in his Tweeter. His tweet caused a broad resonance in the community, so Carmack explained that to measure the lag on Sony HMZ-T1 analog display he used a program that changes the contents of the buffer by pressing a button on the controller, and a screen with the video camera 240 fps. Then he counted the number of frames between pressing the button and changing pixel.
Even though I use an ultrabook for several months, I saw it from inside only recently.
(Yes, you understood correctly. This is the XXI century, and a remote access is available for both the ultrabook and an ordinary computer).
Thereafter, I was not interested in the technical specifications of ultrabook, but I wondered about its physical parameters, and they did not disappoint me. Ultrabook was really slim. It could be even hidden under a sheet of paper.
Its weight has exceeded all expectations. Yes, the ultrabook is light, but it is not ultra light. My Asus Zenbook UX31E (as well as other models, including the Lenovo IdeaPad U300s and Dell XPS 13) weights 2.8 puonds.
To be more precise it weighed before. We were able to reduce its weight by almost 1.1 pounds!
MIT researchers have created a new camera that can acquire visual data at a rate of one trillion exposures per second (1 000 000 000 000 = 10^12). That’s fast enough to produce a slow-motion video of a burst of light traveling the length of a one-liter bottle, bouncing off the cap and reflecting back to the bottle’s bottom. The similar devices will be used in medicine and other branches of science in the future.
We tested several configurations of disk arrays that are suitable for use in servers.
We tested the following configurations:
- 4 x 300GB SAS2 10K + RAID10 on a PCI-E 2.0 controller (Reference 4 x 300GB RAID10)
- PCI-E SSD 120GB MLC (Inexpensive PCI-E SSD 120GB)
- 2 x SSD 120GB MLC + RAID0 on a PCI-E 2.0 controller with optimized firmware (Inexpensive 2 х SSD 120GB RAID0)
- 4 x 300GB SAS2 10K + RAID10 on a PCI-E 2.0 controller + SSD MLC 120GB caching I/O (Hybrid 4 x 300GB RAID10 + SSD caching)
Here are the results of user poll on the SSD reliability that could be useful.
Let us begin with the size statistics.
The picture shows that the most popular formats are 120, 80 and 60, which are released only by Intel.
It is also noticed that the drives with capacity of 120 / 128 are particularly popular among users of alternative operating systems (including OS X).
It was reported in the summer that an unnamed pair of ex-Apple’s engineers on behalf of an unnamed startup is going to present an unnamed product. It turned out that they were Tony Fadell, Apple’s former Senior Vice President of the iPod division and the leading engineer Matt Rogers. They use the iPod click wheel in the new product.
This is not a music player of the new generation, instead they developed a thermostat. The new startup of Tony Fadell and Nest Labs decided to add to the design and purposefulness of Apple standard in those boxes that are installed on the walls of a quarter million American homes and offices, which control their internal temperature. Why? Fadell is sure that all existing thermostats are ugly and too difficult to use. He wants to do something that no one ever thinks about, and make it as a favorite object in the house.
PREDICTION: Apple to release iPhone 5 on October 4 and start shipping by the end of October.
Apple reportedly plans to release the golden master of iOS 5, its forthcoming operating system update for the iPhone, iPad and iPod touch, to its overseas assemblers at some point between September 23 and September 30, on time for a mid-October launch of a fifth-generation iPhone.
Analyst Ming-Chi Kuo revealed to AppleInsider on Monday that the new iPhone and iPod touch went into mass production in late August, and assemblers are currently scheduled to receive the golden master of iOS 5 the week of September 30. Typically, a golden master version of software is identical to the code that eventually becomes the final release to the public.
If you remember, Marty McFly worn Nike Mags in Back to the Future II. What could be better than auto lacing shoes? Nike thought so as well and patented these precious ideas. Now comes year 2011 and Nike finally releases Nike Mag.
But sadly commercial says that we'll see a real tech only in 2015, but for now you can buy a pair of Nike Mags with blinking lights which last for 4 hours on one charge. Availability of 1500 pairs auctioned on eBay and donated to the Michael J. Fox. One pair can go as high as $3000-$35000.