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Welcome to our Information Technology workshop led by tutors Andy Ewers and Nick Lewis. Today's agenda covers essential topics, starting with an introduction, followed by fundamentals of hardware, file management, and internet information sources. You will learn about downloading procedures, evaluating sources, and utilizing search engines. After a hands-on session, the day will conclude with preparations for Day 2. Join us to explore the fundamentals of managing information in modern technology and enhancing your digital skills.
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Welcome & Introduction • Welcome • Your tutors Andy Ewers Nick Lewis • today’s Agenda
Agenda 10.00 Welcome & Introduction 10.15 Fundamentals 10.45 File Management 11.10coffee break 11.25 Downloading 11.45 Information Types 12.05 Information Sources 12.20 Search Engines (internet) 13.00 lunch break
Agenda continued… 2.00 E-mail & Newsgroups 2.40 Evaluating Sources 3.00 Hands-On Session 4.00 Preparation for Day 2 4.30 close
LAICT8 1. Fundamentals • hardware basics • addingdevices/drivers • handling files / back-up • user interface (windows) • copy/paste function Checklist of preparatory study • O L E • video-conferencing • interactive capabilities • version control • evaluating software
2. File Management File sizes • implications - storage - processing • compression techniques - standards - zip/unzip • temporary files • disk defragmentation • security/protection
File Management File sizes • what makes a file large? a) presentation formatting e.g. these files contain just the words the quick brown fox jumps over the lazy dog simple text = small web-page = small wp = larger dtp = largest
File Management File sizes • what makes a file large? b) graphics • low detail = smaller (e.g. GIF) • high detail = larger (e.g. JPG) violin.gif = 16 kb violin.jpg = 34 kb
File Management File sizes • compression techniques • standards supported by applications gif jpg wav midi mp3 avi etc • free-standing, can be applied at will pkzip / pkunzip winzip u_encode / u_decode
File Management File sizes • temporary files • most applications create temporary files, and should delete them on completion • usually have file extension .tmp • temporary internet files are NOT temporary • need to be deleted frequently • or managed with special tools
File Management File sizes • disk defragmentation • deleted files are not removed from the disk • the space is flagged as available for re-use, but only smaller files can fit in the space • gradually lots of small spaces become unusable = fragmented disk
File Management • security/protection • many applications allow the editing of a document (a file) to be restricted to the original author, or to a select list • this assumes that each user has a unique username/password, used when accessing the application • other users have read-only access • warning - users can take a copy and edit that!
3. Downloading (from the internet) • unconscious download • all internet pages (web-pages) are actually downloaded to the hard disk when they are accessed (see ‘temporary files’) • conscious download • when a user chooses to download a file - usually some software or a large text/graphic file - the standard internet download sequence is invoked
PG8 Downloading continued…. • the standard download sequence - select the file to be downloaded - click the download button - a dialogue box appears, with ‘save to disk’ and ‘open here’ options - give the ‘save’ confirmation, which invokes a disk location dialogue box - select the disk location required (which folder to save to) - the file downloads to the disk - but will it be ‘installed’ or ‘set-up’?
4. Information Types • Resources size • textual (simple) • textual (formatted - pdf, doc, etc files) • graphical • sound • audio/visual
Information Types • different types of software applications are needed to view, play, create, edit and manage different types of information • word processing • desk top publishing • spreadsheet • drawing/graphics/photostyling • animation • simulation/computation • sound • audio/visual
5. Information Sources Conventional sources • print publishers • CD publishers • video publishers Internet sources • govt depts and NGOs • free web-sites • commercial publishers on the internet
Information Sources - the Internet • massive network of networks • millions of host computers • millions of users • supra-national : belongs to no one govt or organisation • more information than can be imagined BUT ...
Information Sources - the Internet • no overall quality control • too much garbage and mis-information • too much pornography, racism, and gambling • access still predominantly by white, middle-class, males • evidence of “dumbing-down” for mass markets • care needed by those ‘in loco parentis’
Information Sources ‘nanny’ software • various methods :- • block access to selected sites • restrict access to selected sites • prevent access to pages which contain certain words • keep list of visited sites • many products available NetNanny CyberPatrol CyberSitter SurfWatch Web Trail CyberSnoop InterGO
Information Sources The world wide web • the world wide web has become the face of the internet • highly visual • easy to follow • multi-function
School Web Sites • many established • three main phases :- • school brochure/prospectus • school magazine (some with pupil pages) • hub of school internet activities, with special applications or functions
School Web Sites • Some examples of comprehensive Web Sites • Oakham School www.oakham.org.uk • King Edward VII School (Melton Mowbray) www.ke7.org.uk • Conifer High School, Colorado, USA www.conifer.jeffco.k12.co.us
School Internet uses • for internet experience • for accessing internet tools and services • for accessing educational resources • for communication with other schools, in other countries • for e-mail • for video-conferencing
SITES8 Information Sources Internet educational resources • more promise than actual so far • situation improving • need to identify ‘worthy’ sites • likely good sources :- • NGfL • DfEE • BECTA • BBC/education • Channel 4 • ACITT • Ultralab • Project Gutenberg • Project Earl • EduWeb
6. Search Engines and agents • original concept • index to information held at websites • advanced search tools to locate references in index • easy connection to relevant webpages • actuality • cannot index ALL webpages • index methods vary • search tools vary • connection to found pages may be ‘relayed’ = poor performance
AV8 Search Engines and agents • four main categories • directories • hierarchical • only index key data • e.g. yahoo • full text • non-hierarchical • index everything • e.g. altavista alltheweb • meta-search • search the search engines • e.g. metasearch dogpile • intelligent agents • ‘knowledge-base’ • and do meta-search • e.g. askjeeves
Search Engines and agents • a sensible search strategy • use at least three search engines to ensure good coverage of the subject being researched • read the instructions - search syntax varies • scroll down the pages • use uk/ireland options to switch off excessive usa material
7. Electronic Mail • originally person-to-person • but, circulation lists supported • more like ‘poste restante’ than letterbox delivery • most widely used internet facility
E-Mail Attachments • needed for large filese.g. ms-word documents or graphics files • different encoding by different service providers causes problems for older e-mail software e.g. pipex encodes in base64 msn encodes in u_encode • decoder requirede.g. wincode
Electronic Mail : WebMail • e-mail running on a WebSite, not on an ISP’s mail-servere.g. Hotmail, Talk21, LAICT • id and password on the website so can be accessed from any pc, anywhere in the world • never need to change your e-mail address againe.g. joe.bloggs@hotmail.com
8. Newsgroups also known as usenet groups, conferences, discussion groups • most popular usenet item = directory of newsgroups • 2nd & 3rd most popular both “pornographic”estimate over 50% of internet traffic is porn related !
Newsgroups : Web Boards • newsgroup on a website rather than on a news-servere.g. LAICT Web Board • useful for closed user groups • like an inhouse notice-board
8. Evaluating Sources • who can you trust ? • government depts and NGOs ? • large corporations ? • publishers ? • national libraries/museums ? • how do we find ‘worthy’ sites ? • use known sites as links/portals to other sites • use newsgroups/web-boards to share info with others
9. Hands On • set exercises • try several search engines and agents • try a download • simple, e.g. Project Gutenberg • complex, download and install an application, e.g. BBC Ticker • freedom to experiment • try anything you need to know more about
10. Preparation for day 2 • review of day 1 • rehearse/reinforce information gleaned today • use online tutorials to improve skills in fundamental applications and techniques • use online guides to prepare for specific topics in day 2