Computer Memory Basics Although memory is technically any form of electronic storage‚ it is used most often to identify fast‚ temporary forms of storage. If your computer’s CPU had to constantly access the hard drive to retrieve every piece of data it needs‚ it would operate very slowly. When the information is kept in memory‚ the CPU can access it much more quickly. Most forms of memory are intended to store data temporarily. As you can see in the diagram above‚ the CPU accesses memory according
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of malware. They spread over computer networks by finding operating system vulnerabilities. Worms typically cause harm to their host networks by consuming bandwidth and shorting out web servers. Generally‚ the intent of the worm is to be malicious. There are some worms however‚ which do not have malicious intent. They are referred to as anti-worms. Computer worms are classified as a type of computer virus‚ but there are several characteristics that distinguish computer worms from regular viruses
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What are the Parts of Computer? The Parts of a Desktop Computer are: 1. System unit The system unit is the core of a computer system. Usually it’s a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU)‚ or microprocessor‚ which acts as the "brain" of your computer. Another component is random access memory (RAM)‚ which temporarily stores
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makes our life easier have a computer. Some people says‚ its a great relieve that their work are much easier with the aid of computers. Other people taught that being too dependent to computers has a consequential negative outcome to mankind. In this essay‚ I will discuss the arguments for and against using computers. Firstly‚ computers are widely being used in different work field. Example of it‚ in airline industry‚ one of the most important component is computer. They are the one who calculate
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Computer Ethics is a branch of practical philosophy which deals with how computing professionals should make decisions regarding professional and social conduct.[1] Margaret Anne Pierce‚ a professor in the Department of Mathematics and Computers at Georgia Southern University has categorized the ethical decisions related to computer technology and usage into 3 primary influences: 1. The individual’s own personal code. 2. Any informal code of ethical conduct that exists in the work place. 3. Exposure
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Computer Technician “The first special-purpose electronic digital computer was constructed in 1939 by John V. Atanasoff‚ an American mathematician and physicist. In 1944‚ Howard Aiken‚ a Harvard University professor‚ built another digital computer‚ the Mark 1.” (The World Book) To become a Computer Technician one needs at least one or two years of technical training and have good math skills. Computer technicians manage everybody’s computer problems‚ from installing machines to networks in homes
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- Suresh Khanal Computer Networking Short Questions and Answer www.psexam.com Computer Networking Short Questions and Answers Suresh Khanal Kalanki‚ Kathmandu shkhanal@gmail.com shkhanal@yahoo.com Published By: http://www.psexam.com contact: info@psexam.com Computer Networking: Short Questions and Answers Published by PS Exam Kalanki‚ Kathmandu Nepal www.psexam.com Copyright ©2009 author. No part of this publication may be reproduced‚ stored in a retrieval system or transmitted
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A computer system consists of mainly four basic units; namely input unit‚ storage unit‚ central processing unit and output unit. Central Processing unit further includes Arithmetic logic unit and control unit‚ as shown in the figure:. A computer performs five major operations or functions irrespective of its size and make. These are • it accepts data or instructions as input‚ • it stores data and instruction • it processes data as per the instructions‚ • it controls all operations inside a computer
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provided by the sensor and sending the barcode’s content to the scanner’s output port. Biometrics Biometrics[1] (or biometric authentication)[note 1] refers to the identification of humans by their characteristics or traits. Biometrics is used in computer science as a form of identification and access control.[2] It is also used to identify individuals in groups that are undersurveillance.[citation needed] Biometric identifiers are the distinctive‚ measurable characteristics used to label and describe
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and ink usage • Avoids postage and fuel impact • Protects security and privacy • Strengthens legal defensibility Use of Computer Technology in Medicine The Use of Computers in Medicine The use of computer technology has greatly enhanced the medical field. This is particularly so in hospital environments where reliability and quality are critical factors. Many computer applications‚ such as patient information
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