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Computer Awareness

History and Generation of Computers

History and Generations is an important chapter of Computer Awareness for Bank Exams. Computer awareness is a section in upcoming NICL AO Mains and it is also a section in the mains …

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Computer & Its Generations: Explained

What is Computer? “Computer is an electronic device that takes input from the user, processes it with the help of instruction and produces the output. We can also store the …

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Study Notes: Normalization

What is meant by Normalization in RDBMS? Normalization is a systematic approach of decomposing tables to eliminate data redundancy and undesirable characteristics like Insertion, Update and Deletion Anamolies. Update anomalies …

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Computer – Some Important Short Forms

GOOGLE : Global Organization Of Oriented Group Language Of Earth . YAHOO : Yet Another Hierarchical Officious Oracle . WINDOW : Wide Interactive Network Development for Office work Solution COMPUTER : Common Oriented Machine …

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Basic Computer Concepts

DATA REPRESENTATION –  Memory Units: 4 bit = 1 nibble 8 bit = 1 byte 1024 B = 1 KB (Kilo Byte) 1024 KB = 1 MB (Mega Byte) 1024 …

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Basics of Computer Organisation

The basic of Computer Organisations is a very important topic for computer knowledge test in banking examinations. This endows the user the beginners level knowledge of parts and functioning of …

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Computer Study Notes: Operating System

An operating system is a set of programs that help in controlling and managing the hardware and the software resources of a computer system. Main functions of the operating system …

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What is Computer VIRUS ?

When I first read about computer virus, I was surprised to know it is not ‘virus’ – but VIRUS! VIRUS is actually an acronym for Vital Information Resource Under Siege! Everyone …

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Different Types of Computers

Analog Computer It was Lord Kelvin who first introduced the Analog computer. In such a computer numerical data are represented by physical variables which can be measured, for example, electrical …

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Types of Computer Malware: Explained

Introduction Malware stands for “Malicious Software”. It performs unwanted tasks. It may cause serious damage or invasion to our computer. Stealing data, stealing the password, infecting the computer are the …

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Computer – Some Short-Cut Keys

Some basic Keys Common Tasks Ctrl + Shift + Spacebar – Create a non breaking space Ctrl + B – Make letters bold Ctrl + I – Make letters italic Ctrl + U – …

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Computer Study Notes – The OSI Model

The Open System Interconnection (OSI) model defines a networking framework to implement protocols in seven layers. You must at first understand that OSI model is not tangible rather it is conceptual. You …

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