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Mobile Computing

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  • 1. Mobile Technology By: Stephanie Budd Mike Celentano Aaron Lastoff
  • 2. Mobile Computing
    • The ability to use technology “untethered”
      • Not continuously connected to the base or central network
    • Requires that mobile computing activity be connected wirelessly to and through the internet or to and through a private network
      • Ties the mobile device to information through the use of battery powered, portable, and wireless devices
  • 3. History of Mobile Devices
    • Radio transmitters and wireless communications systems were base stations, operated at fixed locations, with large antenna towers
    • 1950’s  12 volt automotive electrical systems gave rise to 12 volt devices such as two-way radios and mobile rigs
  • 4. History of Mobile Devices (Cont.)
    • Companies such as Motorola sprung up to support the need for mobile devices
    • - Such as taxicab radios, police radios, and trunk mount systems
    • Today there is a wide variety of mobile computing platforms
  • 5. Mobile and Portable
    • Mobile
    • - Vehicular
    • Today there is a fuzzy boundary between the two
      • Many small handheld phones and computers will operate on12 volts
    • Portable
      • Wearable or handheld
    • There is a proposal to have these two connect by wireless ad-hoc networks
  • 6. Wireless Technology
    • Day to Day transfer of information is increasing rapidly and new developments are continually expanding
      • Even so, majority of technology doesn’t provide as much bandwidth or accessibility as landlines
      • Transmission range for wireless is usually related to the data transmission speed
        • The further the wireless signal has to travel  the less data it can carry per second
  • 7. Wireless Technology (Cont.)
    • Most advanced developments of wireless broadband deliver downstream data
    • Satellite communications
      • Good transmission rates, but the cost is too high, typically $1,000 or more
  • 8. Security
    • Physical devices along with the data has to be protected
    • Difficult problem
      • Poorly designed communications protocols
      • Raises the issue of how much information employees are allowed to carry and what procedures to follow so information doesn’t get stolen
  • 9. Mobile Users
    • Mobileer
      • One who uses mobile communications devices
    • Three types:
      • Telecommuters who work away from office but stay directly connected to it from a remote location
      • Casual telecommuters and other workers who work a few days per month outside the office
      • Predominantly mobile employees
  • 10. A Few Mobile Devices
    • Laptop computers
    • PDAs and handheld PCs
    • Calculators
    • Pagers
    • Smart phones and cell phones
    • Task devices
      • Bar code scanners
  • 11. Laptop Computers
    • A brief history
      • The first laptop?… maybe
        • 1979 by William Moggridge
        • Used by NASA on space shuttles in the 80’s
        • 340K byte bubble memory
        • Die cast magnesium case
        • Folding electroluminescent graphics display screen
        • 1/5 the weight of any model equivalent in performance
  • 12. Gavilan Computing
    • First promoted laptop
      • Manny Fernandez was the founder of Gavilan Computers
      • In 1983, it was considered the first fully functional laptop computer
      • Good for executives
  • 13. The Osborne 1
    • First true portable computer
      • Created by Adam Osborne in 1981
      • It weighed 24 lbs and cost $1795
      • 5 inch screen
      • Modem port
      • Two 5 ¼ floppy drives
      • Large collection of software
      • Battery pack
  • 14. More Laptop Firsts
    • 1981- Epson HX-20
      • Battery powered
      • 20 character by 4 line LCD display
      • Built in printer
    • 1983- TRS-80 Model 100
      • Created by Bill Gates & Kazuhiko Nishi
      • 4 lb battery operated portable computer
      • Flat, more of a lap top design
  • 15. Even More of Laptop Firsts
    • 1989- Macintosh Portable
      • Produced by Apple
      • Later evolved into Powerbook
  • 16. How Laptops Work
    • The Microprocessor
      • Internal instructions stored in memory
      • Access its own memory
      • Receive instructions from you
        • Keyboard
        • Mouse
        • Touchpad
        • Trackball
      • Display data to you
        • Cathode ray monitors
        • LCD displays
  • 17. How Laptops Work (cont)
      • Receive data through storage devices
        • Hard drive
        • Zip drive
        • CD/DVD drive
      • Sends data to:
        • Printers
        • Modems
        • Networks
      • Powered by AC or batteries
  • 18. Disk Drives
    • Internal hard disk drive
      • 6 to 20GB
      • Stores:
        • Operating systems
        • Application programs
        • Data files
      • Laptops have less space than desktops
  • 19. What Laptops Can Do
    • There are many fields of use for laptops
      • Education
      • Presentations
      • Note taking
      • Laboratories
      • Entertainment (CD, DVD, mp3)
      • Law Enforcement
      • Astronomy (CCD)
      • Navigation (GPS)
      • Business
  • 20. PDA’s
    • Personal Digital Assistant
      • Serves as an electronic organizer/day planner
      • Capable of sharing information with you computer
      • An extension of a PC… not a replacement
      • Manage personal info
      • Can connect to:
        • Internet
        • GPS
      • Can run multimedia software
  • 21. Uses of PDA’s
    • Manage Personal Information
        • store contact information (names, addresses, phone numbers, e-mail addresses)
        • make task or to-do lists
        • take notes
        • write memos
        • keep track of appointments (date book, calendar)
        • remind you of appointments (clock, alarm functions)
        • plan projects
        • do calculations
        • keep track of expenses
  • 22. More Uses For Select Models
      • Send or receive e-mail
      • Do word processing
      • Play MP3 music files
      • Play MPEG movie files
      • Get information (news, entertainment, stock quotes) from the Internet
      • Play video games
      • Integrate things such as digital cameras and GPS receivers
  • 23. The First true PDA?
    • 1978- LC-836MN
      • Made by Toshiba
      • Robert Hotto & Judah Klausner
      • Main purposes
        • Store memos
        • Store phone numbers
    • 836 led the way for the future
  • 24. How Do PDA’s Work
    • Parts of a PDA
      • microprocessor
      • operating system - tells microprocessor what to do
      • solid-state memory – ROM chip
      • batteries – life depends on types of usage
      • LCD display
        • 65,536 colors, 160 x 160, 240 x 320
      • input device
        • Mini keyboard, touch screen, stylus
      • input/output ports
        • data synchronization
  • 25. History of Calculators
  • 26. Origin
    • First calculator was invented by the Chinese called the Abacus
    • Was first built within the year 3000 BC
    • Was widely used by merchants and clerks.
  • 27. History
    • Wilhelm Schickard
      • First to build automatic calculator
      • Was built in 1623
      • Called it the Calculating Clock
  • 28. History
    • French Philosopher Blaise Pascal
    • Created the Pascaline in 1642
    • Uses
      • Thought his machine could save labor and time.
      • Also used for taxes
  • 29. History
    • Charles Babbage
    • “ Father of Computing”
    • Had the first successful automatic calculator and is known for his precision in engineering
  • 30. Time Goes By. . . Scheutz Calculator- 1853 Baldwin Calculator -1873 Brunsviga Type A- 1892 American Arithmometer- 1898
  • 31. Finally the 1900’s
    • IBM 1954
      • Comes out with all transistor calculator.
      • 1957 release first commercial all transistor calculator
        • IBM 608
    • 1961 Bell introduces the Punch/Sumlock Comptometer - ANITA
  • 32. Technology Gets Better!
    • Not only was technology better but cost more too!
      • These machines usually ran $2200- $2500
      • This included a thirteen digit capacity
      • Average desktop weight was 55lb-100lbs
      • Could Add, Subtract, Multiply, Divide, and sometimes do square roots.
  • 33. First hand held calculator
    • Introduced in January 1971
      • The Sharp EL-8
        • Weighed one pound
        • Used a vacuum fluorescent display
        • Rechargeable batteries
        • Sold for $395
  • 34. Scientific Calculators
    • First pocket
      • Hewlett Packard with the HP-35
      • Used RPN (Reverse Polish Notation) or Postfix Notation.
    • Texas Instruments also introduced the SR-10
  • 35. Upgrades
    • The scientific calculators were introduced to Continuous memory .
        • Data was retained after calculator was shut off.
    • First calculator capable of symbolic computations was the Hp-28
    • First graphing calculator was the Casio fx700G
  • 36. HP-28 Casio fx7000G
  • 37. Present Day Calculators
    • In 2002, HP announces they will no longer make calculators anymore
    • Texas Instruments will capitalize on their sleek design of the new graphing calculators
  • 38. The Basic Calculator
    • Basic Calculators include
      • Battery or solar powered
      • Display- LED lights or Liquid crystal with 8-10 digit display
      • Electronic circuits
      • Keyboard display
        • Ten digits
        • Equal sign
        • Four arithmetic functions
        • Cancel or clear button
        • On and off
        • Square root and percents
      • Can be found in
        • Cell phones
        • Pagers
        • Wrist watches
        • Local stores
  • 39. Sophisticated Calculators
    • Include same functions as basic
    • Support
      • Trigonometry
      • Statistics
      • Graphs
      • Algebra
      • Equation solvers
      • Financial models
      • Scientific notation
      • And holds Games
  • 40. Leading companies
    • Sharp
    • Casio
    • Hewlett Packard
    • Texas Instruments
  • 41. Mobile Technology By: Stephanie Budd Mike Celentano Aaron Lastoff