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3A-1 Ergonomics and Input Devices Ergonomics –Study of human and tool interaction –Concerned with physical interaction –Attempts to improve safety and.

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Presentation on theme: "3A-1 Ergonomics and Input Devices Ergonomics –Study of human and tool interaction –Concerned with physical interaction –Attempts to improve safety and."— Presentation transcript:

1 3A-1 Ergonomics and Input Devices Ergonomics –Study of human and tool interaction –Concerned with physical interaction –Attempts to improve safety and comfort

2 3A-2 Ergonomics and Input Devices Repetitive Strain Injury (RSI) –Caused by continuous misuse of the body –Many professions suffer from RSI Carpal Tunnel Syndrome –Carpal tunnel is a passage in the wrist –Holds nerves and tendons –Prolonged keyboarding swells tendons

3 3A-3 Carpal Tunnel Syndrome

4 3A-4 Ergonomics and Input Devices Office hardware suggestions –Office chairs should have Adjustable armrests and height Armrests Lower back support –Desks should have Have a keyboard tray Keep hands at keyboard height Place the monitor at eye level

5 3A-5 Ergonomics and Input Devices Techniques to avoid RSI –Sit up straight –Have a padded wrist support –Keep your arms straight –Keyboard properly –Take frequent breaks

6 Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved. McGraw-Hill Technology Education E-mail and Other Internet Services

7 2B-7 Using E-mail Exchanges messages with other users –Messages reach destination in seconds –Mail waits in mailbox until opened –Text, audio, pictures and video messages

8 2B-8 Using e-mail Configuring e-mail –e-mail clients read and send e-mail –Outlook and Eudora are common Need name of mail server Need username and password –Hotmail and Yahoo are online clients No configuration needed

9 2B-9 Using e-mail e-mail addresses –Unique address –Allows sending and receiving –fahad.khan@uettaxila.edu.pkfahad.khan@uettaxila.edu.pk Listserv –Lists of e-mail addresses –Each address gets the e-mail

10 2B-10 Using e-mail e-mail actions –Create a new message –Send an attachment –Reply to e-mail –Open attachments –Forward an e-mail

11 2B-11 Other Internet Features News –Public board devoted to a topic –Thousands of topics available –Messages are called threads –Users can create threads –Users can comment on threads –Need a news reader program

12 2B-12 Other Internet Features File Transfer Protocol (FTP) –Copies files from a remote computer –FTP client is needed –Some sites require a password

13 2B-13 Other Internet Features Internet Relay Chat (IRC) –Real time communication system –Multi-users with many channels (rooms) –Channels are dedicated to a topic –All users can read the comments

14 2B-14 Other Internet Features Instant messaging (IM) –Private, real-time communication –Message sent only to listed users –Buddy lists contain IM names

15 2B-15 Other Internet Services Online services –Company that offers access by subscription –Banks, games and research –America Online offers content and Internet

16 2B-16 Other Internet Services Peer-to-peer (P2P) services –User computers are connected together –No centralized organization –Users can communicate directly –Users can share files

17 Questions? 17 Question in my mind is ? Should I ask this ? hmmmmmmmmm? Sorry I was sleeping sir !

18 If you have any query please feel free to ask Phone: +92-51-9047-592 Fax: +92-51-9047-420 Email: fahad.khan@uettaxila.edu.pk University Of Engineering & Technology Taxila Pakistan


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