Intro chapter 07_b data communication
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This document discusses various methods for digital data connections and communications. It describes traditional modem connections over plain old telephone system (POTS) lines with maximum speeds of 56 kbps. It also outlines digital connection alternatives like ISDN lines, T-lines, DSL, cable modems, and wireless networks that provide faster broadband speeds. Wireless networks use wireless access points and adapters to connect devices within a range of 50-150 meters without cables.
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Organizational Structure and Design
The document discusses organizational structure and design. It defines key elements of organizational structure like departmentalization, chain of command, and span of control. It also examines factors that influence structural decisions such as strategy, size, technology, and environmental uncertainty. Different organizational designs are presented, including traditional functional and divisional structures as well as contemporary designs like team, matrix, and boundaryless structures. Challenges of designing organizations in today's environment are also outlined.
Strategic Management
In this slide we will learn how to do strategic Management or how to manage things using strategy.This will help you to manage organization strategically.
Foundations of planning
In this slide of will talk about the planning that what are the foundations and basics which will help you in planning.
foundation of Behavior
This document provides an outline for a chapter on foundations of individual behavior in organizations. It covers topics like attitudes, personality, perception, learning, and their implications. Regarding attitudes, it defines components like cognitive, affective, behavioral. It discusses job satisfaction and its impact on behaviors like absenteeism and turnover. On personality, it contrasts the Myers-Briggs and Big Five models and related traits. It also addresses emotions, emotional intelligence, and their relevance for managerial tasks like employee selection and understanding workplace behaviors.
Decision Making in Managerial job
In this slide we will discuss about the the decision making which is essential in managerial job in this way this can help in decision making.
Social Responsibilities and Managerial Ethics.
The document outlines a chapter about social responsibility and managerial ethics from a management textbook. It includes a learning outline that covers topics like defining social responsibility, the relationship between social responsibility and economic performance, green management, values-based management, and managerial ethics. The chapter examines the classical and socioeconomic views of social responsibility and discusses factors that influence ethical behavior among managers.
Management in Global environment
The document is a chapter from a management textbook that discusses managing in a global environment. It covers key topics like different global attitudes, regional trade agreements, international organizations, and cultural dimensions. Specifically, it defines parochialism and contrasts ethnocentric, polycentric, and geocentric views. It also describes organizations like the European Union, NAFTA, and ASEAN. Finally, it discusses frameworks for understanding culture, such as Hofstede's dimensions and the GLOBE study.
Organizational culture and its enviroment
In these slides there is information about of the organizational culture and its environment that how the organizational culture works.
Hope u will like it.
Management History
This document provides an overview of the historical approaches to management. It discusses ancient management practices, Adam Smith's contributions, the industrial revolution, and major 20th century approaches including scientific management, general administrative theory, quantitative approaches, behavioral approaches, and contingency/contemporary approaches. Key contributors and their principles are outlined, such as Taylor's scientific management principles and Fayol's 14 principles of management.
Introduction to Management and organization
In these slides i will tell u about the management that what is management and what is organization.
Hope u will like it.
Body language during presentation
In these slides i will explain about the body language that how to use the body language during presentation.
Hope u will like it.
Introduction to managers and organization
In these slides we will learn the managers and his thinking and the use of management in organizations.
Drugs and its impact
these documents shows about the the drugs and its impacts also there is discussion about the types and classification.
Series circuit
these documents shows about the circuits in series direction and how they works where the series circuits are uses.
Introduction of multisim
These documents shows the working details about the multisim software.it also tells how we makes the circuit on the multisim.
Parallel circuit of physics
1) In a parallel circuit, the total current is equal to the sum of the individual branch currents. While the voltage remains the same across all branches, the current divides between the paths and decreases in branches with higher resistance.
2) The current entering or leaving any point in the circuit is the same according to Kirchhoff's current law. All current entering a node must exit that node.
3) In a parallel circuit, the voltage remains the same across each branch because the potential difference across each resistor is the same as the voltage supplied by the battery. However, the current in each branch can vary depending on the resistance of that branch.
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◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆
【主营项目】
一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
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1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆
【主营项目】
一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
学历顾问：微信：176555708
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SLU毕业证原版定制【微信：176555708】【圣路易斯大学毕业证成绩单-学位证】【微信：176555708】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
◆◆◆◆◆ — — — — — — — — 【留学教育】留学归国服务中心 — — — — — -◆◆◆◆◆
【主营项目】
一.毕业证【微信：176555708】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【微信：176555708】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
学历顾问：微信：176555708
不能毕业如何获得(USYD毕业证)悉尼大学毕业证成绩单一比一原版制作
挂科购买☀【悉尼大学毕业证购买】【微信176555708】【USYD毕业证模板办理】加拿大文凭、本科、硕士、研究生学历都可以做,二、业务范围：
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一.毕业证、成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
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专业服务，请勿犹豫联系我！本公司是留学创业和海归创业者们的桥梁。一次办理，终生受用，一步到位，高效服务。详情请在线咨询办理,欢迎有诚意办理的客户咨询!洽谈。
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没文凭怎么找工作。让您回国发展信心十足！
★、真实教育部学历学位认证；（一对一专业服务，可全程监控跟踪进度）
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★、毕业证、成绩单等材料，从防伪到印刷、水印到钢印烫金，高精仿度都是跟学校原版100%相同的；（敬请放心使用）
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学位认证网(DU毕业证)迪肯大学毕业证成绩单一比一原版制作
24小时办理【微信176555708】【毕业证明信-推荐信做学费单】成绩单，录取通知书，Offer，在读证明，雅思托福成绩单，真实大使馆教育部认证，回国人员证明，留信网认证。网上存档永久可查！
degree，Transcripts（一对一服务包括毕业院长签字,专业课程,学位类型,专业或教育领域,以及毕业日期.不要忽视这些细节.这两份文件同样重要!毕业证成绩单文凭留信网学历认证！）如果您是以下情况，我们都能竭诚为您解决实际问题：【公司采用定金+余款的付款流程，以最大化保障您的利益，让您放心无忧】
1、在校期间，因各种原因未能顺利毕业，拿不到官方迪肯大学毕业证+微信176555708；
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3、不清楚流程以及材料该如何准备；
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学位证书验证；
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本科毕业证书扫描件的；
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【★迪肯大学毕业证、成绩单等全套材料，从防伪到印刷，从水印到钢印烫金，与学校100%相同】
【★大学学历 硕士学位《迪肯大学毕业证》微信176555708《DU学位证书购买》
硕士毕业证】
【★毕业证书范本】
【★真实留信认证，留信网入库存档，可查】
主营项目：
a.办理海外毕业证认证《迪肯大学毕业证》微信176555708《DU学位证书购买》
学位证书英文版，改成绩单，Offer、在读证明、学生卡、信封、证明信等全套材料，从防伪到印刷，从水印到钢印烫金，高精仿度跟学校原版100%相同.
b.真实使馆认证（即留学人员回国证明），使馆存档可通过大使馆查询确认.
c.真实教育部国外学历学位认证，教育部存档，教育部留服网站100%可查.
d.留信网认证，国家专业人才认证中心颁发入库证书，留信网存档可查.
e.招聘中介代理：本公司诚聘各地代理人员以及留学生，如果你有业余时间，有兴趣就请联系我们，我们会给到您的回报！期待您的加盟：一朝办理，终身受益（本信息长期有效）互惠互利，为广大海内外学子及有需要的人士在事业上跨过这道门槛！
【业务选择办理准则】
1.如果您只是为了的应付父母亲戚朋友看下迪肯大学毕业证，那么办理一份学位即可
2.如果您是为了回国找工作，只是进私营企业或者外企，那么办理一份多大学历认证有时间限制吗《迪肯大学毕业证》微信176555708《DU学位证书购买》
毕业证丢失补办即可，因为私营企业或者外企是不能查询学位真假的！
3.如果您是要进国企银行事业单位考公务员等就需办理真实学历认证！
诚招代理：本公司诚聘当地合作代理人员，如果你有业余时间，有兴趣就请联系我们。
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
Italy Agriculture Equipment Market Outlook to 2027
Agriculture and Animal Care
Ken Research has an expertise in Agriculture and Animal Care sector and offer vast collection of information related to all major aspects such as Agriculture equipment, Crop Protection, Seed, Agriculture Chemical, Fertilizers, Protected Cultivators, Palm Oil, Hybrid Seed, Animal Feed additives and many more.
Our continuous study and findings in agriculture sector provide better insights to companies dealing with related product and services, government and agriculture associations, researchers and students to well understand the present and expected scenario.
Our Animal care category provides solutions on Animal Healthcare and related products and services, including, animal feed additives, vaccination
原版仿制(uob毕业证书)英国伯明翰大学毕业证本科学历证书原版一模一样
原版纸张【微信：741003700 】【(uob毕业证书)英国伯明翰大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Meet up Milano 14 _ Axpo Italia_ Migration from Mule3 (On-prem) to.pdf
Quattordicesimo Meetup di Milano, tenutosi a Milano il 23 Maggio 2024 dalle ore 17:00 alle ore 18:30 in presenza e da remoto.
Abbiamo parlato di come Axpo Italia S.p.A. ha ridotto il technical debt migrando le proprie APIs da Mule 3.9 a Mule 4.4 passando anche da on-premises a CloudHub 1.0.
可查真实(Monash毕业证)西澳大学毕业证成绩单退学买
办理假西澳大学毕业证【微信176555708】购买,办理Monash成绩单,Monash毕业证制作【微信176555708】【西澳大学毕业证】，Monash毕业证购买，Monash学位证，西澳大学学位证【Monash成绩单制作】【Monash毕业证文凭 Monash本科 澳洲学历认证原版制作【diploma certificate degree transcript 】【留信网认证，本科，硕士，海归，博士，排名，成绩单】代办国外（海外）澳洲、韩国、加拿大、新西兰等各大学毕业证。 ?我们对海外大学及学院的毕业证成绩单所使用的材料，尺寸大小，防伪结构（包括：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。 文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）都有原版本文凭对照。#一整套西澳大学文凭证件办理#—包含西澳大学西澳大学毕业证成绩单学历认证|使馆认证|归国人员证明|教育部认证|留信网认证永远存档教育部学历学位认证查询办理国外文凭国外学历学位认证#我们提供全套办理服务。
一整套留学文凭证件服务：
一：西澳大学西澳大学毕业证成绩单毕业证 #成绩单等全套材料从防伪到印刷水印底纹到钢印烫金
二：真实使馆认证（留学人员回国证明）使馆存档
三：真实教育部认证教育部存档教育部留服网站永久可查
四：留信认证留学生信息网站永久可查
国外毕业证学位证成绩单办理方法：
1客户提供办理西澳大学西澳大学毕业证成绩单信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）。
教育部文凭学历认证认证的用途：
如果您计划在国内发展那么办理国内教育部认证是必不可少的。事业性用人单位如银行国企公务员在您应聘时都会需要您提供这个认证。其他私营 #外企企业无需提供！办理教育部认证所需资料众多且烦琐所有材料您都必须提供原件我们凭借丰富的经验帮您快速整合材料让您少走弯路。
实体公司专业为您服务如有需要请联系我: 微信176555708
Internet of Things in Manufacturing: Revolutionizing Efficiency & Quality | C...
This article delves into how the Internet of Things in manufacturing is reshaping the industry, its benefits, challenges, and future prospects.
急速办(bedfordhire毕业证书)英国贝德福特大学毕业证成绩单原版一模一样
原版纸张【微信：741003700 】【(bedfordhire毕业证书)英国贝德福特大学毕业证成绩单】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
国外证书(Lincoln毕业证)新西兰林肯大学毕业证成绩单不能毕业办理
退学办理新西兰林肯大学毕业证【微信176555708】学历认证怎么做：原版仿制新西兰林肯大学电子版成绩单毕业证认证【新西兰林肯大学毕业证成绩单】、新西兰林肯大学文凭证书成绩单复刻offer录取通知书、购买Lincoln圣力嘉学院本科毕业证、【新西兰林肯大学毕业证办理Lincoln毕业证书哪里买】、新西兰林肯大学 Offer在线办理Lincoln Offer新西兰林肯大学Bachloer Degree。1客户提供办理信息：姓名生日专业学位毕业时间等（如信息不确定可以咨询顾问：微信176555708我们有专业老师帮你查询）；
2开始安排制作毕业证成绩单电子图；
3毕业证成绩单电子版做好以后发送给您确认；
4毕业证成绩单电子版您确认信息无误之后安排制作成品；
5成品做好拍照或者视频给您确认；
6快递给客户（国内顺丰国外DHLUPS等快读邮寄）。
7完成交易删除客户资料
高精端提供以下服务：
一：新西兰林肯大学新西兰林肯大学毕业证文凭证书全套材料从防伪到印刷水印底纹到钢印烫金
二：真实使馆认证（留学人员回国证明）使馆存档
三：真实教育部认证教育部存档教育部留服网站可查
四：留信认证留学生信息网站可查
五：与学校颁发的相关证件1:1纸质尺寸制定（定期向各大院校毕业生购买最新版本毕,业证成绩单保证您拿到的是鲁昂大学内部最新版本毕业证成绩单微信176555708）
A.为什么留学生需要操作留信认证?
留信认证全称全国留学生信息服务网认证,隶属于北京中科院。①留信认证门槛条件更低,费用更美丽,并且包过,完单周期短,效率高②留信认证虽然不能去国企,但是一般的公司都没有问题,因为国内很多公司连基本的留学生学历认证都不了解。这对于留学生来说,这就比自己光拿一个证书更有说服力,因为留学学历可以在留信网站上进行查询!
B.为什么我们提供的毕业证成绩单具有使用价值？
查询留服认证是国内鉴别留学生海外学历的唯一途径但认证只是个体行为不是所有留学生都操作所以没有办理认证的留学生的学历在国内也是查询不到的他们也仅仅只有一张文凭。所以这时候我们提供的和学校颁发的一模一样的毕业证成绩单就有了使用价值。
Search Result Showing My Post is Now Buried
Search results burying my post that used to rank before Google's March 2024 algorithm update.
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APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024
Italy Agriculture Equipment Market Outlook to 2027
Italy Agriculture Equipment Market Outlook to 2027
Meet up Milano 14 _ Axpo Italia_ Migration from Mule3 (On-prem) to.pdf
Meet up Milano 14 _ Axpo Italia_ Migration from Mule3 (On-prem) to.pdf
Internet of Things in Manufacturing: Revolutionizing Efficiency & Quality | C...
Internet of Things in Manufacturing: Revolutionizing Efficiency & Quality | C...
Intro chapter 07_b data communication
- 1. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology EducationMcGraw-Hill Technology Education Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved.
- 2. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology Education Chapter 7B Data Communications
- 3. 9B-3 Modem Communications • Plain Old Telephone System (POTS) – Standard phone line – Two-way voice communication – Uses analog transmission techniques – Data communication is slow
- 4. 9B-4 Modem Communications • Modems – Modulator/Demodulator • Modulator converts digital to analog – Speed measured in bits per second (bps) • Current fastest speed is 56 Kbps • Quality of phone lines dictates speed – V.92 is the current modem standard – Several modem types • Internal • External • Voice • Fax
- 5. 9B-5 Modem Communications • Modem uses – Connection to the Internet – File transfer • Uploading • Downloading
- 6. 9B-6 Digital Data Connections • Digital phone lines – Local telephone companies are upgrading – Service will faster and more reliable – New phones will be needed – Modems will need to be upgraded
- 7. 9B-7 Digital Data Connections • Broadband connection – Any data connection faster than 56 Kbps – Common in business – Becoming popular in home installations
- 8. 9B-8 Digital Data Connections • ISDN lines – Integrated Services Digital Network – Basic rate uses three channels • Two data channels each support 64 Kbps • Error correction channel – Primary rate uses 24 data channels
- 10. 9B-10 Digital Data Connections • T lines – High-capacity voice/data lines – Used to control phone and data – Several variants – T1 transmits at 1.544 Mbps – T3 transmits at 44.736 Mbps
- 11. 9B-11 Digital Data Connections • DSL technologies – Digital Subscriber Line – Popular with home users – Speeds range from 100 Kbps to 30 Mbps – Asymmetrical DSL (ADSL) • Upload speed slower than download speed – Symmetrical DSL (SDSL) – Requires a DSL modem
- 12. 9B-12 Digital Data Connections • Cable modem connections – Popular with home and office users – Speeds between 1 and 3 Mbps – Requires a cable modem
- 13. 9B-13 Digital Data Connections • ATM – Asynchronous Transfer Mode – Efficient transfer of video and sound – Requires a special NIC and hardware
- 14. 9B-14 Wireless Networks • Benefits – No cable to pull – Mobile devices access network resources – Mobility and flexibility for office workers
- 15. 9B-15 Wireless Networks • Wireless 802.11 – Also called Wi-Fi – IEEE standard • Institute of Electronic and Electrical Engineers – Several versions • 802.11b connects up to 11Mbps • 802.11g connects up to 56Mbps – Use the same type of devices
- 16. 9B-16 Wireless Networks • Wireless Access Point – Center of a wireless network – WAPS combined cover a larger area – Distance to WAP determines bandwidth – Range is 50 to 150 meters – Extension points can extend range
- 17. 9B-17 Wireless Networks • Wireless Adapters – Used by devices to connect – Includes signal strength software
- 18. Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.McGraw-Hill Technology Education Chapter 7B End of Chapter