Storing information through magnetic patterns was first demonstrated to record audio. Since then, this concept has been applied for different products like floppy disks, audio/video tapes, hard disks, ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Toby Walters is a financial writer, investor, and lifelong learner. He has a passion for ...

One of many ways that Americans are ridiculed by the rest of the world is that they don’t have chip and PIN on their credit cards yet; US credit card companies have been slow to bring this technology ...