Computer Hardware came about when machines needed separate manual actions to be able to perform specific mathematical functions. Luckily in 1941‚ a man by the name of Konrad Zuse invented what was considered the first working‚ fully operable computer. Prior to this‚ most of the calculations were done manually to calculate by people with adding machines. Today these adding machines are better known as calculators. Back then‚ all you had to do is push buttons‚ but in today’s modern software technology
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Improvements on common machines Computer- For most of the people‚ computer is a machine used for a calculation or a computation‚ but actually it is much more than that. Precisely Computer is an electronic device for performing arithmetic and logical operation. Or “Computer is a device or a flexible machine to process data and converts it into information.” To know about the complete process that how computer works‚ we will have to come across the various terms such as Data‚ Processing and Information
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COMPUTER HARDWARE HIT 1403. Assignment 1 Bektemir Kassymov Table of Contents INTRODUCTION ...........................................................................................................................3 Hard Disk .....................................................................................................................................5 History of hard disks. .................................................................................................
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T or F: ESD is very dangerous to computer technicians. False. What does the acronym ESD stand for? Electrostatic Sensitive Device. In what conditions is ESD most likely to occur? It occurs in cold‚ dry conditions. With __________ ESD‚ the damage is permanent and is noticeable right away. Catastrophic. What are the similarities and differences of latent and upset ESD? Similarities: Even if the device is damaged‚ it will still pass initial testing. How can a PC technician protect
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known and popularly used types of computer software. These software come in the form of tools that assist a programmer in writing computer programs. Computer programs are sets of logical instructions that make a computer system perform certain tasks. The tools that help programmers in instructing a computer system include text editors‚ compilers and interpreters. Compilers translate source code written in a programming language into the language which a computer understands (mostly the binary form)
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➢ What is a computer? Why it is also known as a data processor? A device that computes‚ especially a programmable electronic machine that performs high-speed mathematical or logical operations or that assembles‚ stores‚ correlates‚ or otherwise processes information is known to be a computer. A computer is an electronic device which manipulates or transforms data. It accepts data‚ stores data‚ process data according to a set of instructions‚ and also retrieve the data when required. Hence it is
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TOUCH-LESS TOUCHSCREEN USER INTERFACE CONTENTS: y Introduction y Touch less monitor y Touch sensor y Working y Touch less wall y Touch wall y What s next? Introduction A touch screen is a display that can detect the presence and location as touch within the display area. Touch screen can also sense other passive objects such as stylus. Cntd: y The touch less touch screen sounds like it would be nice and easy‚ however after closer examination it looks like it could be quite
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One of benefits of the method is the small volumes of data that are accessed by utilizing DNA patterns. Experimental results and security assessment experiments indicate that the method suggested has an ideal level of security. With development of computer networks and the increasing use of Internet‚ the discussion of security in transferring data has been put forward as one of important subjects. The reason for it is the accessibility of data in Internet‚ and their easy access by authorized and unauthorized
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What is air pollution? Air pollution -is the introduction into the atmosphere of chemicals‚ particulates‚ or biological materials that cause discomfort‚ disease‚ or death to humans‚ damage other living organisms such as food crops‚ or damage the natural environment or built environment. The atmosphere is a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to
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[242] IT security for users [242.1] Select and use appropriate methods to minimise security risk to IT systems and data Assessment Criteria | 1.1 | | Describe the security issues that may threaten system performanceThe possible threats to system performance may be: unwanted e-mail (‘spam’)‚ malicious programs (including viruses‚ trojans) and hackers. Security precautions can be taken beforehand such as use of access controls. We can configure anti-virus software‚ adjust firewall settings
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