Successfully reported this slideshow.
Get your Pancaketickets TONIGHT!!!!                                              John Hamilton6/21/2012   Computers Merit ...
Computers Merit Badge •Online Safety •What is a computer and what does it “do”? •History of the computer •Computer Program...
Online Safety• Never give personal information in Chat rooms      – Name, Address, Phone Number, Age• NEVER give your pass...
What is a computer?• A computer is a programmable machine  designed to automatically carry out a  sequence of arithmetic o...
What makes a computer a computer?• Computer case                           • Keyboard, Monitor      – Power supply        ...
Where are computers used?•   Home (Personal Computer)•   Cell phones•   Cars•   Appliances•   Traffic control signals•   C...
What can a computer do?• Spreadsheet                        • Games      – Family budget                • Music / Movies  ...
History of the Computer• ENIAC      – Univ. of PA (Moore School)      – Vacuum tubes      – 1800 sq. ft.                  ...
History of the Computer• Apple / IBM      – Apple II                                IBM PC XT      – Macintosh / x86 based...
History of the Computer• Apple / Windows      – Macintosh (Apple)             x86 based PCs (Windows)• Microprocessor capa...
Computer Programs• Program: A computer program (also  software, or just a program) is a sequence of  instructions written ...
Computer Programs• Commonly used software programs• Email      – Outlook, Outlook Express, Thunderbird, Eudora• Integrated...
Review• Name of an early          • What program is not in an  computer                    Office Suite                   ...
Computer Programs - Security• Anti-virus      – Kaspersky      – Symantec      – Trend      – McAfee      – AVG• Anti-malw...
Computer Programs - Security• Passwords      – Weak, Moderate, Strong      – http://www.passwordmeter.com/• Firewalls     ...
The Internet (World Wide Web)• We owe it all to Al Gore!• Computers all over the world connected by  communications hardwa...
Components of a home “network”• Cable modem (may have a router built-in)• Router (possibly wireless)• Ethernet cable or 80...
Software “piracy”• Making or installing illegal copies of software      – OK to make backups copies of CDs / DVDs      – U...
Software Licensing• Proprietary software      – Microsoft Office, Norton anti-virus, many games• Shareware      – Availabl...
Music and Video copyrights• Most music and video is copyrighted• It is not legal to download music and store it  on your p...
Career Opportunities•   Systems administrator•   Network administrator / Network security•   Telecommunications engineer (...
Questions                                                  John Hamilton6/21/2012      Computers Merit Badge   Slide 22   ...
Upcoming SlideShare
Loading in …5
×

BSA Computer MB

1,717 views

Published on

A presentation I did for my son\'s BSA Troop about Computers Merit Badge

  • Be the first to comment

BSA Computer MB

  1. 1. Get your Pancaketickets TONIGHT!!!! John Hamilton6/21/2012 Computers Merit Badge Slide 1 Jon Davis
  2. 2. Computers Merit Badge •Online Safety •What is a computer and what does it “do”? •History of the computer •Computer Programs •Networking and the Internet •Copyrighted material •Careers The Jacquard loom
  3. 3. Online Safety• Never give personal information in Chat rooms – Name, Address, Phone Number, Age• NEVER give your password(s) to anyone – Except your parents in case of emergency• Look for HTTPS:// on sites (SSL security)• Watch out for fake websites that look REAL• http://www.opendns.com/phishing-quiz/ John Hamilton6/21/2012 Computers Merit Badge Slide 3 Jon Davis
  4. 4. What is a computer?• A computer is a programmable machine designed to automatically carry out a sequence of arithmetic or logical operations.[1]• Integrated circuit – Microprocessor • Intel 8080 (1974, 8-bit) • Motorola 6800 (1974, 8-bit)• CISC – Complex Instruction Set Computing• RISC – Reduced Instruction Set Computing [1] Wikipedia John Hamilton6/21/2012 Computers Merit Badge Slide 4 Jon Davis
  5. 5. What makes a computer a computer?• Computer case • Keyboard, Monitor – Power supply • Optional Components – Motherboard – Mouse • CPU – Printer • Memory – Scanner • Expansion slots – Speakers – Hard drive, CD/DVD drive – External drive(s) – Ports John Hamilton6/21/2012 Computers Merit Badge Slide 5 Jon Davis
  6. 6. Where are computers used?• Home (Personal Computer)• Cell phones• Cars• Appliances• Traffic control signals• Cash registers• Others??? John Hamilton6/21/2012 Computers Merit Badge Slide 6 Jon Davis
  7. 7. What can a computer do?• Spreadsheet • Games – Family budget • Music / Movies – Household assets• Word processor – Letters – School papers• Email• Powerpoint John Hamilton6/21/2012 Computers Merit Badge Slide 7 Jon Davis
  8. 8. History of the Computer• ENIAC – Univ. of PA (Moore School) – Vacuum tubes – 1800 sq. ft. • Commodore 64 – Integrated circuit – 64 kB RAM – $135 production cost John Hamilton6/21/2012 Computers Merit Badge Slide 8 Jon Davis
  9. 9. History of the Computer• Apple / IBM – Apple II IBM PC XT – Macintosh / x86 based PCs• Microprocessor capability gains John Hamilton6/21/2012 Computers Merit Badge Slide 9 Jon Davis
  10. 10. History of the Computer• Apple / Windows – Macintosh (Apple) x86 based PCs (Windows)• Microprocessor capability gains – Moore’s law John Hamilton6/21/2012 Computers Merit Badge Slide 10 Jon Davis
  11. 11. Computer Programs• Program: A computer program (also software, or just a program) is a sequence of instructions written to perform a specified task with a computer.[1]• Programs are written in programming “languages” (e.g. COBOL, FORTRAN, C++, Java) COBOL – Common mainframe programming language for business applications FORTRAN – Common scientific programming langauge C++ – An early UNIX programming language, has been adapted to other O/S’s Java – A hardware independent programming language used in many arenas [1] Wikipedia John Hamilton6/21/2012 Computers Merit Badge Slide 11 Jon Davis
  12. 12. Computer Programs• Commonly used software programs• Email – Outlook, Outlook Express, Thunderbird, Eudora• Integrated Office Suites – Microsoft Office, WordPerfect Suite, OpenOffice, NeroOffice (MAC), Google Docs • Word Processor • Spreadsheet • Presentations • Drawing • Database John Hamilton6/21/2012 Computers Merit Badge Slide 12 Jon Davis
  13. 13. Review• Name of an early • What program is not in an computer Office Suite – Word processor – UNIVAC – Web browser – ENIAC – Database – ShopVac – Speadsheet• Which is older • Which is optional – Commodore 64 – Monitor – Mouse – Macintosh – CD Drive John Hamilton6/21/2012 Computers Merit Badge Slide 13 Jon Davis
  14. 14. Computer Programs - Security• Anti-virus – Kaspersky – Symantec – Trend – McAfee – AVG• Anti-malware – MalwareBytes – Adaware John Hamilton6/21/2012 Computers Merit Badge Slide 14 Jon Davis
  15. 15. Computer Programs - Security• Passwords – Weak, Moderate, Strong – http://www.passwordmeter.com/• Firewalls – Windows built-in – Many A/V vendors offer firewalls also John Hamilton6/21/2012 Computers Merit Badge Slide 15 Jon Davis
  16. 16. The Internet (World Wide Web)• We owe it all to Al Gore!• Computers all over the world connected by communications hardware and software• ISO OSI framework – Messages travel between computers in things called packets. Packets consist of a long string of 1’s and 0’s arranged in a standardized fashion – An email can be sent from Pennsylvania and arrive in California within seconds John Hamilton6/21/2012 Computers Merit Badge Slide 16 Jon Davis
  17. 17. Components of a home “network”• Cable modem (may have a router built-in)• Router (possibly wireless)• Ethernet cable or 802.11 wireless adapter – 802.11a, 802.11b, 802.11g, 802.11n• IP address (4.2.2.2)• MAC address (54-CE-61-0B-D1-0F)• DHCP and DNS John Hamilton6/21/2012 Computers Merit Badge Slide 17 Jon Davis
  18. 18. Software “piracy”• Making or installing illegal copies of software – OK to make backups copies of CDs / DVDs – Usually OK to install on multiple machines, as long as only one is in use at any given time John Hamilton6/21/2012 Computers Merit Badge Slide 18 Jon Davis
  19. 19. Software Licensing• Proprietary software – Microsoft Office, Norton anti-virus, many games• Shareware – Available to download and try – Author expects compensation for continued use• Freeware – Open to distribute freely (possibly source code) – GNU GPL John Hamilton6/21/2012 Computers Merit Badge Slide 19 Jon Davis
  20. 20. Music and Video copyrights• Most music and video is copyrighted• It is not legal to download music and store it on your personal computer for later playback without having paid a pre-determined price – iTunes … most songs cost $0.99 – Bearshare, Limewire, etc. are “illegal” John Hamilton6/21/2012 Computers Merit Badge Slide 20 Jon Davis
  21. 21. Career Opportunities• Systems administrator• Network administrator / Network security• Telecommunications engineer (convergence)• Business Analyst• Programmer / Web developer• Database administrator (DBA)• Technician (Helpdesk) John Hamilton6/21/2012 Computers Merit Badge Slide 21 Jon Davis
  22. 22. Questions John Hamilton6/21/2012 Computers Merit Badge Slide 22 Jon Davis

×