الجمعة، 13 ديسمبر 2013

Hackers

A history of hacking:
Hacking has been around for more than a century during the late Fifties and Sixties. In the 1870s, several teenagers were flung off the country's brand new phone system by enraged authorities. Here's a peek at how busy hackers have been in the past 35 years.

The hackers used the computers to innovate and explore, whereas the others used them to speed-up traditional number crunching. The hackers believed that computers could create new paradigms, and wanted to expand the tasks computers could accomplish.

The Hacker Ethic:
1. Access to computers - and anything which might teach you something about the way the world works - should be unlimited and total. Always yield to the Hands-On imperative!
2. All information should be free.
3. Mistrust authority - promote decentralization.
4. Hackers should be judged by their hacking, not bogus criteria such as degrees, age, race, or position.
5. You can create art and beauty on a computer.
6. Computers can change your life for the better.

There are the Black Hat hackers behind internet mayhem, thievery, and chaos, there are also White Hat hackers who use their computer savvy for good. There’s also a different kind of hacker entirely: the tinkerer. They all played parts, big and small, in creating the computer world as it exists today. Here are 10 of the greatest:

Konrad Zuse
He was the first computer hacker. He may not have been a hacker in the modern sense of the word, but none of it would have been possible without him. Zuse made the world’s first fully programmable (Turing-complete as they say) computer, known as the Z3.

John draper
John Draper was hacking computers long before computers were even common place. Draper’s hacking heyday was back in the early 1970s, when the largest computer network to which the general public had any access was the telephone system. Draper created tool known as the Blue Box, a device that could produce many other tones used by the phone companies.

Steve Wozniak
After Draper shared the details of his Blue Box design during a Homebrew Computer Club meeting, Wozniak built a version of his own. Steve Jobs and Wozniak work together to create the Apple I. Their company became the industry leader it is today.

Robert Tappan Morris
Robert Morris a graduate student from Cornell University. He created the worm as an attempt to gauge the size of the internet at the time. The worm was intended to be unobtrusive, but due to a flaw in its replication algorithm, it copied itself excessively, causing heaving system loads and ultimately leading back to Morris. In 1989, Morris became the first person indicted and later convicted under the Computer Fraud and Abuse Act of 1986.

Mark Abene
Here’s a name you may not be familiar with: Mark Abene. He never hacked into the D.O.D. nor did he steal millions of dollars in some Swordfish-style bank heist. What he did do was piss off AT&T. As a member of the hacker group Masters of Destruction, Abene was often poking around on AT&T’s systems. When AT&T’s telephone system crashed, leaving 60,000 customers without phone service for over nine hours, they quickly blamed Abene. The Secret Service paid him a rather aggressive visit, confiscating his equipment, and while AT&T eventually admitted that the crash was a mistake on its part, Abene was charged with computer tampering and computer trespassing in the first degree. Later, he would face more charges and ultimately serve a year in federal prison, making him the first hacker to do so.

Kevin Poulsen
Poulsen holds claim to one of the more amusing hacks of all time. Poulsen was arrested and eventually pleaded guilty to various counts of computer fraud, money laundering, and obstruction of justice. Interestingly, since his incarceration, Poulsen made a complete 180, helping in cyber crime cases, and even capturing sexual predators on MySpace.

Kevin Mitnick
Kevin Mitnick is perhaps the most famous hacker in computer history, likely due to his being the first hacker to make the FBI’s Most Wanted list. As a master of social engineering, Mitnick didn’t just hack computers; he hacked the human mind. In 1979, at the age of 16, he hacked his way into his first computer system and copied proprietary software. After a two and a half year pursuit, Mitnick was finally arrested and served five years in prison. He now runs his own computer security consultancy, Mitnick Security Consulting.

Tsutomu Shimomura
Tsutomu Shimomura is a White-Hat hacker credited with capturing Kevin Mitnick. In 1994, Mitnick stole some of Shimomura’s personal files and distributed them online. Motivated by revenge, Shimomura came up with a trace-dialling technique to back-hack his way in to locating Mitnick. With Shimomura’s information, the FBI was able to pinpoint and arrest Mitnick.

Richard Stallman
In his early years, Stallman was a graduate student and programmer at MIT’s Artificial Intelligence Labs where he would constantly engage with MIT’s rich hacking culture.In 1980′s, Stallman didn’t like the proprietary stance many manufacturers were taking on their software. This eventually led Stallman to create the GNU General Public licence and GNU operating system, a completely free Unix-like OS that is completely Unix-compatible.

Linus Torvalds
Linus Torvalds is another White-Hat hacker. His hacking days began with an old Commodore VIC-20 and eventually a Sinclair QL. He programmed his own Text Editor and even a Pac-Man clone he dubbed Cool Man. In 1991, he got an Intel 80386 powered PC and began creating Linux, first under its own limited licence but eventually merged it into the GNU Project under the GNU GPL.

الجمعة، 6 ديسمبر 2013

Researchers in Singapore develop taste simulator

New technology the world will try it soon. According to ABC News, researchers at the National University of Singapore are working on creating a "digital lollipop,”. It’s a digital taste "Instead of just looking at a cake on your screen, you can taste it.” This new digital simulator can reproduce the four main taste components—salt, sweet, sour and bitter—via the use of electrodes.

The method involves tongue interface, control system, and taste recording device. The team presented their work last month at an ACM conference in Barcelona. The taste simulator can project salty, sweet, bitter, and sour tastes though electrical current. The currents, as well as some slight changes in temperature, are aimed at stimulating the tongue so it tastes different flavors.

Dr. Nimesha Ranasinghe the lead researcher says: "Simulating food is one of the future directions of this technology," the research will not stop here. Ranasinghe also says it could be used to help provide an alternative to real food or enhance taste. Also they are working on paring down the device into a handheld or true (calorie-free) lollipop shape.

See the video to know more about taste simulator:

الأحد، 1 ديسمبر 2013

Samsung Iris Scanner

On October last year, Samsung featured news about new innovation technology which is unlock the phone through the iris scan technology at the same time Apple introduce technical fingerprint provided on iPhone 5S.

The eyeball scanner inclusion has now been confirmed by a patent filing that Samsung has submitted in the upcoming Galaxy S5, which will most likely be released sometime in the first quarter of 2014. The technology allows the user to open the phone screen by scanning the iris of the eye by special sensor will be placed at the top of the screen is emitted through the amount of light able to scan the iris of the eye and match them with the device in a complex manner.
These iris scanners have many features such as quicker, easier, cheaper and more convenient for a mobile lifestyle, even working while wearing glasses or contacts lenses. It is also much more secure than fingerprint scanning.

السبت، 30 نوفمبر 2013

Smart home

The fast pace and ever growing possibilities of today's and tomorrow's technology are exciting. New products are available almost daily to fill our homes full of hi-tech solutions that make our lives more automated, convenient and energy efficient. Smart home is here to help you choose the right devices from our vast range of home automation products that fit your lifestyle. We offer everything for the do-it-yourselfer, putting remote control of your home in the palm of your hand.
Smart home equipment
Smart home have special and appliances such as refrigerators and washing machines. Inside the appliances are computers. The computers control the appliances. They are all connected through the electrical wires in the homes. These devices can be directed to work at certain times in certain ways.
Special features
Electronic cupboards and fridges can tell you what food you need to buy or they can talk to shops over the internet to have food send to your home. With smart home you can see if you have everything you need to cook a certain food. You can also add what foods you can produce with the ingredients you already have. Control lighting and appliances throughout your home remotely from a smart phone. You can dim lights while watching a movie or having dinner, or schedule lights to turn on and off while you are on vacation. Stay green and save energy by checking to see if any lights were left on, or turn off anything that is plugged in. Consider using a programmable thermostat to increase energy management and reduce your utility bill by regulating thermostat use and temperatures based on your family's schedule.
Home automation also includes the safety of your family. Smart home offers a complete line of traditional security and surveillance systems to protect your home. We even have the latest biometric (fingerprint) door locks, communicating smoke and carbon monoxide detectors, and wireless sensors to ensure that everyone is protected from dangers inside and outside your home.
Smart home doesn't want you to forget about having some fun too! We have portable speakers for your smart phone or tablet, outdoor products for your yard or patio, accessories for your car and garage, a selection of smart products for kids and everything your need for pet care and pest control.
Smart homes used to be available only for the rich, but future homes will all have some of these features.

السبت، 9 نوفمبر 2013

Professional Digital cameras

Professional Digital cameras or DSLR is a difficult choice to every new buyer, because there are things people should considered before the purchase such as budget, needs and also the knowledge. In the market, .a number of companies offer you a camera according to the specifications and budget




If you research of DSLR camera to just learn, I advise you to buy at the beginning camera Nikon D3200. It 
is the best choice to you; it offers to you the Guide mode that provides you with different positions to take photo and how to become professional in this camera by adjusting the aperture as well as exposure. Also, there is the option of auto-tuning, which will do the rest of the job after you pressure the shutter button because camera comes with high accuracy a 24-megapixel optical telescope.


The best kind of DSLR camera (small size):

If you want a Professional Digital Camera small size where you can put in the bag, you need Canon EOS 100D. This camera is strictly 18-megapixel lens with aperture EF-S 18-55 mm and f/3.5-5.6 IS STM and CMOS a Hybrid Hagen sensor and HD video.






The best DSLR camera in all respects and price:

The Japanese company Pentax, offers DSLR cameras which is same like camera K-30, which is considered the best offer of the company so far, especially in the matter of quality photography and video shooting and by stable price it offers you a number of properties such as the camera is against water and binoculars 100% and lens 18 -55 mm and 16 megapixel and light sensitivity of ISO 100 to 25600 and can now shoot 1080p resolution video at 30 frames per second lenses and compatible with K-mount.

Best DSLR camera in terms of degree of clarity:

The Nikon D800 is the world’s best for these things because it has such extremely high image quality that it exceeds not just every other full-frame DSLR ever made. Also, it has more resolution than any other full-frame DSLR by a large margin, more than twice as many pixels as Nikon's own brand-new professional Nikon D4 that sells for twice the price!











Best Professional DSLR Camera:

There is a negotiation about that between Nikon and Canon at this point, Canon provides you with the camera Canon 1D X, while Nikon provides you with D4 but Camera Canon provides you with amazing speed and battery and long life. Also it is full frame accurately 18 Megapixel and light sensitivity reach 51200. The camera also has a screen 3.2-inch technology LCD and provider of optical digital for video it can shoot 1080p at 24 or 25 or 30 frames per second, you can see the video accurately 720p at 50 or 60 second.