Computer keyboard In computing‚ a keyboard is a typewriter-style device‚ which uses an arrangement of buttons or keys‚ to act as mechanical levers or electronic switches. Following the decline of punch cards and paper tape‚ interaction via teleprinter-style keyboards became the main input device for computers. A keyboard typically has characters engraved or printed on the keys and each press of a key typically corresponds to a single written symbol. However‚ to produce some symbols requires pressing
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Introduction to Computer Viruses It’s Saturday morning. You boot up your Windows 98 computer and lo and behold‚ the graphics on the desktop are a mirror image of what they should be. Congratulations‚ you have a computer virus! According to "Virus Bulletin‚" the Oxfordshire‚ England-based technical journal that tracks viruses‚ this new virus flips any uncompressed bitmaps horizontally‚ but only on Saturdays. This bulletin credits GriYo of the 29A virus-writing group as the author of this 32-bit
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COMPUTER REVOLUTION Personal Computers The personal computer revolution was a phenomenon of immense importance in the 1980s. What the average American commonly refers to as a PC‚ or personal computer‚ did not even exist before the 1970s. Mainframe computers had been the norm‚ and they were primarily relegated to business and scientific use. With the dawn of the personal computer all Americans were allowed potential access to computers. As competition and modernization increased‚ issues of cost
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Careers In Computer Engineering Careers In Computer Engineering While financial analysts‚ government officials‚ and employment specialists frequently disagree on conditions existing in the American economy today‚ everyone concurs with the idea that a college graduates possessing a degree in the field of computer engineering is in the enviable position of being able to pick and choose among job offers with several major computer companies and other Fortune 500 employers. Over the last five
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Game of the Generals The Game of the Generals‚ also called Salpakan in Tagalog‚ and GG as it is most fondly called‚ or simply The Generals‚ is an educational wargame invented in the Philippines by Sofronio H. Pasola‚ Jr. in 1970. It can be played within twenty to thirty minutes. It is designed for two players‚ each controlling an army‚ and a neutral arbiter or an adjutant. It needs the use of logic. The game simulates armies at war trying to outflank and outmaneuver each other. As in actual warfare
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COMPUTER VIRUS AND ITS TYPES COMPUTER VIRUS Computer virus is a software program written with malicious intentions. There are number of computer viruses that can impede the functioning of your computer system. DETAIL ABOUT COMPUTER VIRUS They are replicated by themselves. Viruses are so dangerous and malicious that they can be automatically copied and pasted from memory to memory over and over; the transmitting power is too much quick from network to network that can simply hang smoothly running
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A. VOLATILE MEMORY Volatile memory‚ also known as volatile storage‚ is computer memory that requires power to maintain the stored information‚ unlike non-volatile memory which does not require a maintained power supply. It has been less popularly known as term Dynamic random access memory (DRAM) is a type of random access memory that stores each bit of data in a separate capacitor within an integrated circuit. Since real capacitors leak charge‚ the information eventually fades unless the capacitor
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Gage October 5‚ 2013 Gun Control America has the highest gun homicide rate‚ the highest number of guns per capital and the highest rate of deaths due to assault. On December 14‚ 2012‚ 20-year-old Adam Lanza brutally shot twenty children and six adults in a mass murder at Sandy Hook Elementary School in the village of Sandy Hook in Newtown‚ Connecticut. This sandy hook shooting is one of the most recent tragedies in America which brings politicians and citizens around the country talking about
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Short Critical Reflection Daniel Gold Computer Literacy February 11‚ 2011 * Cyber bullying is a serious issue in today’s schools and business. If everyone adopted and educated people on netiquette guidelines would this issue be solved? Explain. The issues of bullying will never be resolved whether online or in real life. My daughter’s school is constantly doing assemblies on bullying and encouraging children against it‚ and to speak up if they see a victim of bullying‚ yet the issue of
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Operating System: An operating system (OS) is a set of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. Application programs require an operating system to function. Types: 1. Real-time A real-time operating system is a multitasking operating system that aims at executing real-time applications. Real-time operating systems often use specialized scheduling
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