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NTG computer basics seminar

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NTG computer basics seminar

  1. 1. Nashville Technology Gurus<br />Presents<br />The Computer<br />Need-to-Knows Seminar<br />
  2. 2. Nashville Technology Gurus<br />Intro and welcome<br />Who I am?<br />Why are you here?<br />
  3. 3. What we’ll cover today…<br />The basics of what you need to know about computers but no one tells you<br />Shopping for and buying a computer<br />Knowing your computer<br />Maintaining your computer<br />Keeping your computer secure<br />
  4. 4. The couch vs. car principle<br />The couch principle – many people like to think of buying a computer like buying a couch. Once you buy a couch it’s always a couch. You don’t upgrade it, you don’t have to worry about losing things on it in general unless they’re under the cushions (kind of like being somewhere else on the hard disk drive), it doesn’t get slower, it gets outdated only after about 10 years or so, you may have to clean it now and then but it’s basically always there functioning as a couch whenever you need to crash on it instead of it crashing on you.<br />
  5. 5. The couch vs. car principle<br />The computer principle– The computer is very much like having the responsibility of a car. You have to go through the process of shopping for one, buying it with just the right options including a warranty, maintaining it, being careful with it even gentle, replacing parts eventually, and eventually deciding to keep it or replace it. Also, backups of your files are like spare parts for your car especially when the ‘parts’ are important, hard to find, or expensive.<br />
  6. 6. Buying a computer<br />Buying and maintaining a computer is very much the same with your car<br />Shop around with very little surety of what is best for you<br />Coupons available through email, mail, and websites<br />Websites listing promotions and deals<br />www.slickdeals.net<br />www.techbargains.com<br />Holiday bargains are worth looking for<br />20-40% off typical with bundles<br />Having a computer seller rep. will help get good deals especially for businesses<br />
  7. 7. Buying a computer<br />No interest APR often available for 12 months or more<br />In-person vs. online (CompUSA/Costco vs. Dell/HP)<br />You may want to get a literal feel for a new computer. Going to a retail store or outlet may better for those who are more visual in what they’re looking for. However, be wary of refurbished models, used computers, and computers selling for cheap but without essential software or a good warranty.<br />
  8. 8. Buying a computer<br />Online configuration and ordering is very easy now and often leads to deep discounts especially around big holidays or special promotions and also year-end models. However, online ‘deals’ can have hidden after purchase costs like extended warranties from buying one that is too short, not getting enough memory or the right software.<br />
  9. 9. Components of a desktop system<br />Hardware<br />Desktop system<br />Case<br />Power supply<br />Adequate space for components<br />Fans and good airflow<br />Drive bays<br />
  10. 10. Components of a desktop computer system<br />USB<br />The more the better<br />1.1 vs. 2.0 vs. 3.0<br />Firewire (400 – 800 Mb/s)<br />CD/DVD drives (700 MB/4.7 GB)<br />Media<br />+R vs. –R<br />+RW vs. –RW<br />Single vs. double-layer<br />Multiple<br />Speed<br />Blue-Ray (25GB)<br />
  11. 11. Components of a desktop computer system<br />Processor<br />Intel<br />AMD<br />Speed<br />Cache (or memory)<br />Core Duo (2)<br />Multiple or Quad Core<br />
  12. 12. Components of a desktop computer system<br />Memory<br />Capacity (you never can have too much with any OS)<br />Speed<br /># of memory slots<br />
  13. 13. Components of a desktop computer system<br />Internal hard drives - bottle neck and most likely part to fail the soonest<br />1-6 per personal computer (depending on design of case)<br />PATA (300 Mb/s) – old type<br />SATA (1.5 Mb/s – 3.0 Mb/s)<br />Capacity (20 GB – 1.5 TB)<br />Speed (5400 rpm – 10,000 rpm)<br />
  14. 14. Components of a desktop computer system<br />Video card<br />Built-in<br />PCI card<br />Memory<br />Speed<br />Analog vs. digital ports<br />Dual ports<br />Multiple video cards<br />
  15. 15. Components of a desktop computer system<br />Modem<br />Speed (28kb/s – 128kb/s)<br />Fax feature<br />Network card<br />Built-in wired (100Mb/s – 1Gb/s)<br />Wireless PCI card or USB<br />Monitor/display<br />CRT<br />LCD flat panel<br />Plasma<br />HD<br />
  16. 16. Components of a portable computer system<br />Portable<br />Laptop types<br />Standard<br />Notepad<br />Case<br />Power supply<br />Fans and good airflow<br />USB<br />2-6 ports available normally<br />1.1 vs. 2.0<br />Firewire (400 – 800 Mb/s)<br />CD/DVD drives (700 MB/4.7 GB)<br />Media<br />+R vs. –R<br />+RW vs. –RW<br />Single vs. double-layer<br />Speed<br />Blue-Ray (25 GB)<br />
  17. 17. Components of a portable computer system<br />Processor<br />Intel<br />AMD<br />Speed<br />Cache (or memory)<br />Core duo<br />
  18. 18. Components of a portable computer system<br />Memory<br />Capacity (you never can have too much memory with any OS)<br />Speed<br /># of memory slots<br />
  19. 19. Components of a portable computer system<br />Internal hard drives – currently a computer’s “bottle neck” and most likely part to fail the soonest<br />Capacity (20 GB – 500 GB)<br />Speed (5400 rpm – 7200 rpm)<br />
  20. 20. Components of a portable computer system<br />Video card<br />Built-in<br />Memory<br />Speed<br />Analog vs. digital secondary port<br />
  21. 21. Components of a portable computer system<br />Screen<br />Resolution<br />Brightness<br />Size (12” – 17”)<br />Modem<br />Speed (28 kb/s – 128 kb/s)<br />Fax feature<br />
  22. 22. Components of a portable computer system<br />Network card<br />Built-in wired (100Mb – 1Gb)<br />Wireless<br />B, G, A and N<br />PC card<br />USB<br />Built-in<br />
  23. 23. Components of a portable computer system<br />PC card slot vs. Express card slot<br />Complete Care extra protection – well worth it; covers drops, spills, power surges, etc.<br />
  24. 24. Components of a portable computer system<br />PDA<br />With phone<br />Without phone<br />iPhone<br />Windows Mobile 6.x – 7.0<br />Blackberry<br />Symbian<br />Palm OS<br />Droid (Android)<br />
  25. 25. Components of a computer system<br />Printer<br />Laser<br />Multi-function<br />DeskJet<br />
  26. 26. Components of a computer system<br />Backup drive – if you don’t have one, you’ll wish you had at some point<br />Internal – spare vs. redundant<br />External<br />Memory stick<br />MS Synctoy data sync<br />Bluetooth <br />Printers, keyboard, mouse<br />PDAs, cell phones, headphones<br />
  27. 27. Components of a computer system<br />Hardware Support<br />Warranty service<br />Local service<br />Warranty (think of it as insurance)<br />Length of contract (90 days – 5 years)<br />Provider of service (Dell, IBM, HP, GE)<br />Type (Onsite vs. take in vs. send in)<br />Support escalation<br />
  28. 28. Components of a computer system<br />Software<br />Operating System<br />Microsoft<br />Windows 95/98/ME<br />Windows NT4<br />Windows 2000<br />Windows XP<br />Windows Vista<br />Windows 7<br />Apple – Mac OS X <br />Linux (SuSE, Ubuntu, Red Hat)<br />
  29. 29. Components of a computer system<br />Software<br />Applications<br />Internet Browser<br />IE (6 vs. 7/8)<br />Security issues almost constantly<br />Memory pig<br />Very hard to uninstall<br />Must be updated even though you don’t use it<br />Firefox<br />Tabs<br />Plug-ins<br />Themes<br />Smaller memory footprint, stable,secure<br />Safari (Mac OS X)<br />Opera<br />Google Chrome<br />
  30. 30. Components of a computer system<br />Software<br />Applications<br />MS Office<br />97 – XP – still exist around the world<br />2003 – dominant version in the U.S.A.<br />Word<br />Excel<br />PowerPoint<br />Publisher<br />Access<br />Outlook (see below)<br />2007 – new look; will render older files even previous versions somewhat changed and not necessarily for the better<br />2010 – more features (of course), 64-bit, Web 2.0<br />
  31. 31. Components of a computer system<br />Software<br />Applications<br />Outlook<br />Same basic design as always<br />Never been as stable as it should be<br />Export *.pst file periodically<br />MS Office database backup utility available for download<br />Separate email, calendar, and contacts for backup purposes for restoration ease<br />Auto PST backup upon exit option (free from MS)<br />
  32. 32. Components of a computer system<br />Software<br />Applications<br />Other email applications<br />Eudora<br />Mozilla Thunderbird<br />Pegasus<br />
  33. 33. Components of a computer system<br />Software<br />Applications<br />MS Works (Office ‘lite’) – not recommended<br />Plug-ins – Quicktime, Acrobat Reader, Flashplayer, Java<br />OpenOffice (Windows, OS X, Linux) – has Word, PowerPoint, Publisher, and Access basic equivalents<br />Google Apps, Google Sync<br />Windows Live, Office Live, Office Sync<br />
  34. 34. Security<br />Anti-virus<br />Threat analysis<br />Zero-day<br />Trojans<br />Worms<br />SARC (www.sarc.com) – info source<br />Symantec<br />McAfee<br />Frequency of scans – at least monthly<br />
  35. 35. Security<br />Spyware<br />Threat analysis<br />Spyware<br />Adware<br />Dialers<br />Hack tools<br />Joke programs<br />Remote access<br />Hoaxes<br />Trackware<br />Others<br />Anti-spyware software<br />Webroot Spysweeper<br />Spybot<br />Ad-aware<br />Windows Defender – HAH!<br />
  36. 36. Security<br />Email that can steal - examples<br />Threat analysis (see email PDFs)<br />Spam/Junk email<br />Scams<br />Bots<br />Root kits<br />If it’s too good to be true, it probably is<br />Alternate web-based email address for sign-ups<br />Complex passwords and IDs<br />Anti-spam software<br />Symantec<br />McAfee<br />
  37. 37. Security<br />ID Theft<br />Phishing<br />Online – never send personal or account info through regular email (e.g. SS#, financial accounts #s, etc.)<br />Phone calls – be suspicious of anyone asking for account, username, user ID or password info<br />Contact your bank or credit card company immediately if you have replied to fraudulent email or by phone with sensitive information<br />Pharming – redirecting online users from a legitimate website to a false one and collecting user info for identity and financial theft<br />Online Predators (buddy lists, social networks)<br />
  38. 38. Security<br />Firewall<br />Symantec Internet Security<br />McAfee firewall<br />Windows XP SP3, Windows Vista SP2, Windows 7<br />Privacy service<br />Purpose – to house IDs and passwords securely<br />Symantec<br />McAfee<br />Internet Security Suites<br />Symantec<br />McAfee<br />
  39. 39. Security<br />Operating System updates – be aware<br />Windows<br />Critical vs. recommended vs. optional/hardware<br />IE, OE and OS patches are all connected<br />Mac OS X<br />Linux (SuSE, Red Hat/Fedora, Ubuntu)<br />CERT email list (www.cert.org)<br />Frequency to check for updates - monthly<br />
  40. 40. Security<br />Internet browser usage<br />Secure transaction safety<br />Close browser with after secure transactions such as purchases or on-line banking<br />Logout of sites you’ve signed into before closing the browser<br />Make sure there is an SSL (https://) link with secure transactions<br />Look for the ‘padlock’ on the bottom of the browser<br />Always download the latest version of your internet browsers whenever possible<br />
  41. 41. Security<br />OS need-to-knows<br />Default access is administrator or equivalent (Windows and OS X) which gives total access to hardware and software – consider creating user only account to cut down on scripts, installing fluff software and others unnecessary that can harm a computer over time<br />‘Power-user’ can still have most of the same problems that come with admin<br />Outlook Express is most vulnerable program on the planet – don’t use if you have email alternative<br />To help stop spread of viruses, you need at least Windows 2000 and be using Outlook 2000 as opposed to Outlook Express<br />Creating a profile for each user on a workstation can really help for simplification reasons for computer health<br />Sync-toy available from MS for individual profiles<br />
  42. 42. Computer Utilities<br />Backup<br />Registry<br />Windows System Restore utility (built-in) – should be performed manually occasionally even though recovery points are supposed to be created automatically<br />Regedit.exe export and store (for experts only)<br />Disk Image<br />Norton Ghost – multiple recovery points can be made and also while using computer; incremental backups available<br />Files or Folders<br />Manual – only for those who know where everything is<br />MS Sync Toy<br />Symantec IS 4 or 360 has built-in backup software<br />
  43. 43. Computer Utilities<br />Maintenance<br />Defragmentation & Optimization (Diskeeper vs. Symantec built-in)<br />File cleanup (e.g. Webroot Window Washer)<br />Deletes temp files and other junk<br />May need a ‘bleach’ feature to shred files<br />Power<br />Protect system hardware with UPS<br />Available for desktop systems, laptops and servers<br />
  44. 44. Purchasing software<br />Know what you’re buying and from who<br />Be aware of rebates and discounted bundles<br />Educational, government, non-profit discounts<br />‘OEM’ usually OK – beware of non-USA origin<br />Very cheap overseas software – most likely bootlegged and purchase may benefit terrorist groups, black market, or international mafias<br />
  45. 45. Software support<br />Computer manufacturer<br />Limited time from purchase<br />Extended time via purchase<br />Software vendor<br />Warranty service – at least 1 year, 3-4 years much better especially with ‘complete care’<br />
  46. 46. Computer Physical Maintenance<br />Laptop<br />Keyboard<br />Screen – water & cotton<br />Desktop<br />Screen<br />Keyboard<br />Mouse<br />Case<br />Dust problems<br />Vacuum occasionally<br />Avoid leaving case on carpet for extended periods<br />Fans – replace fans when they burn out to avoid anything overheating (power supply fans usually require replacing the whole unit)<br />
  47. 47. Internet connection<br />Internet provider router<br />Cable (6 Mb/s – 24 Mb/s)<br />DSL (256 kb/s – 4.5 Mb/s)<br />Satellite (2.5 Mb/s – 5.5 Mb/s)<br />PC Card or My-Fi (384 kb/s – 1.5 Mb/s) 3G<br />WiMax (1.5 Mb/s – 3.0 Mb/s) (e.g. Clearwire)<br />Wireless router<br />Types<br />B (2.4 GHz, 150’ range, 11 Mb/s)<br />G (2.4 GHz, 100’range, 54 Mb/s)<br />A (5.0 GHz, 75’range, 54 Mb/s)<br />N (2.4 GHz, 160’range, 200+ Mb/s)<br />Frequency – changing from default channel to one higher or lower may help with 2.4 GHz broadcast or reception<br />
  48. 48. Basic security for wireless routers<br />Change admin password<br />Rename default SSID<br />Enable highest encryption<br />WEP (or shared)<br />WPA-PSK or WPA-PSK2 (best)<br />Some wireless devices configuration come with a simple but secure “one button” setup with ‘key’ on bottom of router<br />Disable broadcast of SSID<br />Update firmware at least yearly<br />Don’t assume public “hot spots” are secure<br />Save login ID and password, SSID name, and passkey<br />Consider MAC control<br />Consider disabling DHCP for small networks<br />Turn off wireless router when you know you won’t use it for long periods such as vacation<br />
  49. 49. Wireless internet etiquette<br />Is it illegal to use another’s wireless broadcast?<br />‘War-driving’<br />War-chalking – represented by )( <br />Peer-to-peer – unless you’re sure you need it disable it<br />
  50. 50. Other Internet connections<br />Dial-up (28 kb/s – 128 kb/s)<br />PC/Express Card (450 kb/s – 1.5 Mb/s)<br />PDA (500 kb/s – 1.5 Mb/s) on 3G<br />
  51. 51. Closing<br />Consulting and support available from Nashville Technology Gurus (NTG)<br />Phone – (615) 852-6470<br />Email – nashtechgreen@gmail.com<br />Website – www.nashtechgurus.com<br />Future seminars<br />Dates<br />Subjects<br />Email list<br />Thank-you for coming!<br />