The history of computing hardware covers the developments from simple devices to aid calculation, to mechanical calculators, punched card data processing and on to modern stored-program computers . Before the 20th century, most calculations were done by humans. Early mechanical tools to help humans with digital calculations were called "calculating machines", by proprietary names, or even as they are now, calculators . The machine operator was called the computer. The first aids to computation were purely mechanical devices which required the operator to set up the initial values of an elementary arithmetic operation, then manipulate the device to obtain the result. The slide rule and, later, analog computers represented numbers in a continuous form, for instance distance along a scale, rotation of a shaft, or a voltage. Numbers could also be represented in the form of digits, automatically manipulated by a mechanical mechanism. Although this approach generall
Posts
PHP is a server-side scripting language designed for web development but also used as a general-purpose programming language. As of January 2013, PHP was installed on more than 240 million websites (39% of those sampled) and 2.1 million web servers. [4] Originally created by Rasmus Lerdorf in 1994, [5] the reference implementation of PHP (powered by the Zend Engine) is now produced by The PHP Group. [6] While PHP originally stood for Personal Home Page , [5] it now stands for PHP: Hypertext Preprocessor , which is a recursive acronym. [7]
Financial Time-X: THE HISTORY : Everything that existed in this world has its history, if we talk about Humans they have their history, if we talk about Animals or Plants ... If you like this post 1+ this
You wake up in the morning, switch on your PC and check mails or update your Facebook status. You go to work, switch on your computer and work. You come back from work, and re-check your mails, make entries in your account folder, check your bank balance, etc. You encourage your child to watch NatGeo, or undertake grammar test using the latest software.
Theft of Personal Information The use of Internet for banking, social networking, or other services, often makes our personal information vulnerable to theft. There are no fail-proof ways to securing names, account numbers, addresses, photos, and credit card numbers from being stolen or misused by thieving websites and individuals.
Faster Communication The Internet has been mankind's greatest means of communication yet. Newer innovations are only making it faster and more reliable. Today, we can initiate real-time communication with someone who is in another part of the world.