Today's World is of Computer

HACKER A hacker may refer to any of the following: Computer hacker1. A hacker is a term that first started being used in the 1960s and described a programmer or someone who hacked computer code. Later the term evolved into an individual who had an advanced understanding of computers, networking, programming, or hardware, but did not have any malicious intents. In 1981, Ian Murphy, also known as "Captain Zap", became the first hacker to be convicted of hacking. He hacked into the AT&T computer network and modified the billing rates system, changing the internal clocks so that cheaper late-night rates were billed to customers during mid-day hours. Today, a malicious hacker is usually referred to as a malicious user, black hat, or criminal hacker, which describes any individual who illegally breaks into computer systems to damage or steal information. Some people who consider themselves leet may refer to themselves as a leet haxors, h4x0rs, or HaXXorZ. However, often...

Bitcoin A Bitcoin (BTC) is a digital currency, used on the Internet for various services. This currency utilizes an open-source, peer-to-peer Internet protocol for tracking of transactions involving bitcoin transfers. Websites and applications can send and receive bitcoins through the use of wallets, using ECDSA digital signatures to verify the transactions. The bitcoin is not a standard currency, meaning it has no central bank to manage it, like a standard currency does (i.e. the Federal Reserve for U.S. currency). For this reason, the equivalent dollar value can fluctuate greatly, resulting in criticism that it is not suited for use in the worldwide economy. The bitcoin was first introduced by Satoshi Nakamoto on January 3, 2009. However, Nakamoto is not the developer's real name and their real identity is unknown, despite investigations by The New Yorker and Fast Company. As of March 2013, the equivalent dollar value of the bitcoin is over 400 million U.S dollars. It can be...