Mobile Computing


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Mobile Computing

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