Engineering has developed from observations of the ways natural and constructed systems react and from the development of empirical equations that provide bases for design. Let’s look at the example of communication as it has definitely changed the way of our daily life. Many years ago we used to communicate via writing but now we communicate by using information network like telephone, mobile phone, internet etc. The application IT has changed considerably as we can now communicate via text message, email and communicating via instant messaging on MSN messenger, Facebook and even in the form of Tweets on Twitter. So, it has significantly changed the world’s communication over time. Macs are well endowed with included software and utilities: from the very useful Preview utility that offers a quick peek at just about any file type, to the included office and media apps. You also get Apple Maps, Podcasts, Mail, Calendar, Notes, Reminders, and we can’t forget the fine web browser, Safari , which offers good synergy with its mobile counterparts. You need a set of clean files that will allow you to load the OS and access the file system and services in case your PC is unable to boot. Keeping a backup of the files critical to this functionality on a Bootup disk is good practice. Data and information can be in analog and digital forms, and is applicable to computer hardware and software and all platforms of telecommunication i.e. computer systems, computer networking, internet, television, radio, telephone networking etc. IEC 243-1 is the test procedure for determining the electrical strength of plastic insulating tubes. New standards for conducting polymers will be issued as they are integrated into currently theoretical applications like flexible solar cells. I’m an electronics guru, other people seek my advice on electronics. I would suggest that anyone interested in cell phone radiation read the book Disconnect by Devra Davis. So many people just blindly state that there is no research to prove anything, but there really is and there has been knowledge of the effects of EMF radiation since the development of radar for the military. Check out the book Disconnect and check out my website Cell Phone Radiation Exposed. Thanks for creating this hubpage. It is going to take all of us spreading the news and demanding change for the government to do anything about the risks. The FDA is corrupt when the person in charge of setting cell phone radiation levels in the USA is a top executive for Motorola. Around the time when the cloud was introduced users worried about losing documents, photos and music if a computer malfunctioned. Today, data can be stored safely beyond the boundaries of personal computers.