Category Archives: Computers
It appears that September is going to be a busy month for Apple computer. I posted an article below by Mark Gurman of 9 to 5 Mac detailing the rollout of a new IPhone trade in program by Apple. iPhone users will be able to go to their local Apple Store and trade their old iPhones for credit towards the purchase of a new iPhone.
This seems like a great marketing move by Apple. With competition in the smartphone arena heating up, the program will help ensure that current iPhone users continue as Apple customers. It should also boost sales of new iPhones as people decide to upgrade who maybe wouldn’t without the program.
The real question is, is this a good deal for the users. The credit towards a new iphone Apple is offering is certainly going to be less than what you get if you sold your old phone yourself by listing it on ebay. It all comes down to convenience. Trading in at an Apple Store is fast and saves the hassle of listing your old phone, perhaps negotiating with a buyer and shipping the phone. My advice would be doing some research before trading in your old phone. Search for your model (3,4,4S,5) on ebay and get an idea of the current market price and compare it with what Apple is offering you. If the difference is $100 or more, you might want to go the ebay route. $100 can buy quite a few apps and songs on itunes.
Apple is also expected to be introducing 2 new iPhone models in September, the 5S and the 5C. The 5C is rumored to be a lower end model of the iPhone in a plastic case.
I am currently using an iPhone 4S. (In fact this entire post was written along with many others on that very iPhone. ) I am anxious to see what the new 5S has to offer and whether the new trade in program will be offered in Japan.
Tell me what is on your wish list for the new 5S. Leave a comment below.
Bitcoin is an electronic cryptocurrency. The origin of bitcoin dates back to 2008, when a paper written by Satoshi Nakamura laid out the design for the new currency.
How does bitcoin work? Bitcoin is a digital peer to peer electronic currency. In other words, people can receive and send bitcoins to and from anyone on the network. There is no central authority or intermediary involved. Whenever a transaction takes place, it is broadcast to the entire network, and added to an electronic ledger known as the blockchain.
As the blockchain grows and transactions are verified, new bitcoins are generated. When the bitcoin network was first launched, new bitcoins were generated at the rate of 50 coins per block. This rate is halved every 4 years until it finally reaches 0 in the year 2140. At that point there will be 21 million bitcoins in existence.
The process of creating new bitcoins is known as bitcoin mining and involves solving extremely difficult mathematical problems. This difficulty increases over time. Some enthusiastic miners have created mining rigs that are devoted solely to mining coins. There are even companies now which sell nothing but bitcoin mining gear, such as Butterfly Labs. With bitcoins currently trading at $106 per coin, you can understand the attraction bitcoin mining has.
Tomorrow I will discuss the pros and cons of bitcoins, how they can be obtained and what the future may hold for bitcoin.
If you are like me, you may have never heard of 3D printing or you’ve heard the term, but are unsure what it means. Simply put 3d printing is the creation of 3 dimensional objects thru the use of a special form of printer. The process starts with the creation of a CAD (computer aided design) file that is made using 3d modeling software. The printer uses this file to produce the object by placing layer after layer until the entire object is created. Think of it like layers of a cake, stacked on top of each other.
Some imagine a world where there are no factories and people just print the items they need. Such a scenario is still off in the future. The most common current use for 3d printing is the creation of a prototype, which can be tested and tweaked before being mass produced. Also current technology is useful in printing small parts and other common items like handles. If it is bigger than a bread basket, it will take several hours to produce.
Future applications are far ranging including the printing of human tissue and body parts. The printer would be loaded with bio-material and would produce the object by placing the material, layer upon layer on the printer bed until the desired part was produced. There is also a darker side to 3d printing, some are trying to use the technology to print guns or other weapons. In Sydney, Australia, thieves used 3d printed ATM skimmers to milk $100,000 from ATM users. (An ATM skimmer is a device which is attached to an ATM in order to gather credit card and banking account information.)
3D printing is also growing amongst hobbyists. A variety of home 3D printers are now available in the price range of $1500 and up. There are also design files which can be downloaded to use, so it is unnecessary to know complicated CAD software programs in order to use your printer. One popular home printer is the Cube.
3d printing is still in its infancy, but as the technology progresses, it is sure to have a huge impact on our world. Compare the internet now to where it was back in the 80s when there were virtually no high speed connections, and things like music and video sharing were still far off, and you have some idea where 3D printing will be in 20 or 30 years.
Here is a video which shows 3D bio printing and what the future may hold.