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Computers for Beginners/Print version Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
Computer security is a branch of computer technology with the objective of protecting information from unauthorized access, disruption, or modification while maintaining the accessibility and usability of the system for its intended users. Historical cryptography is the art of writing and deciphering secret messages.
The following outline is provided as an overview of and topical guide to information technology: . Information technology (IT) – microelectronics based combination of computing and telecommunications technology to treat information, including in the acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information.
BASICs with Bitwise Ops use -1 as true and the AND and OR operators perform a bitwise operation on the arguments.. FOR/NEXT skip means that body of the loop is skipped if the initial value of the loop times the sign of the step exceeds the final value times the sign of the step (such as 2 TO 1 STEP 1 or 1 TO 2 STEP -1).
Information technology (IT) is a set of related fields that encompass computer systems, software, programming languages, data and information processing, and storage. [1] IT forms part of information and communications technology (ICT). [ 2 ]
A human computer, with microscope and calculator, 1952. It was not until the mid-20th century that the word acquired its modern definition; according to the Oxford English Dictionary, the first known use of the word computer was in a different sense, in a 1613 book called The Yong Mans Gleanings by the English writer Richard Brathwait: "I haue [] read the truest computer of Times, and the best ...