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EnggRoom_Code_mobile computing.pptEdge computing
- 1. 1 MOBILE COMPUTING Jitendra Patel ROLLNO :- 38 TY MSC(CA & IT)
- 2. 2 According to adictionary: Mobile: Able to move freely Computing: The activity of using a computer What is mobile computing?
- 3. 3 Mobile Computing Mobile Computing DesktopLaptop Mobile Computing?
- 4. 4 Mobile Computing Mobile Computing •Able to communicate (or to access information) anytime, and anywhere Portable Devices Wireless Access Network Data Server, Other People, etc.
- 5. 5 Portable Devices Portable Devices Mobilephones • voice, data • simple text displays PDA • simple graphical displays • character recognition • simplified WWW Palmtop • tiny keyboard • simple versions of standard applications Laptop • fully functional • standard applications
- 6. 6 Advantages and Limitations Communicate whereveryou are Access and change electronic information Access Internet through wireless network • Limited battery life • Screen display • Slow mobile Internet connection • Wireless Internet coverage may not exist • More costly • Less rugged
- 7. 7 Paging Devices Inexpensive Lightweight Different kinds Numeric Voice Alphanumeric Two-way pagers (transmitter) Radio devices Translate radio waves into digital signals
- 8. 8 Cellular Phone Features Auto-redial Calltimers Voice mail Internet access Microbrowser Wireless Markup Language Text messaging SMS (Short Message Service) MMS (Multimedia Message Service)
- 9. 9 Cell Phones Havethe Same Components as a Computer! Processor (CPU) Internal memory up to 750 KB Store contact data, images, ring tones Operating system Symbian OS Input, Output devices Microphone, keypad, camera
- 10. 10 MP3 Players forStoring Music Digital files (bits) Varying storage space Memory chips (64 to 256 MB) Built-in hard drive (up to 40 GB) Removable flash memory card (64 MB to 1GB) Store up to 5,000 songs Additional options: Images Video
- 11. 11 MP3 Player Ripping Convertinga song from a CD into a digital MP3 file Sampling Rate Transfer Files to MP3 Player Software USB 1.0 port FireWire port USB 2.0 port
- 12. 12 (PDA) (PDA) Personal Digital Assistants PersonalDigital Assistants • Small, smaller, smallest • View, store and transmit data from a handheld device • New applications • Mix of personal and business data • Less personal – Access and store corporate data
- 13. 13 PDAs Have theSame Components as a Computer! Palm computers or Handhelds Processor (CPU) Operating system Palm OS Pocket PC (Windows CE) Storage Input devices Output devices Ports
- 14. 14 PDA Hardware Stylus forinput Keyboard Integrated Folding Processor Speeds vary Internal memory Flash memory Eg. Memory Stick, CompactFlash card LCD screens Grayscale Color Digital cameras
- 15. 15 Tablet PCs Portable andlightweight Advanced handwriting recognition Pressure sensitive screen Digital pen, digital ink Draw images and enter text Speech recognition Speech can be converted into text or commands Removable keyboard
- 16. 16 How about wirelessnetworks? How about wireless networks? Base Station Shared Channel Wireless users access the network by means of a shared channel Access capacity is inherently limited.
- 17. 17 Laptop Computers Also called“notebooks” Powerful portable solution DVD/CD-RW Larger displays/hard drives RAM up to 1 GB Slower processors than desktops
- 18. 18 Laptop or Desktop? Morecostly Less expandable Exposed to more hazards, possibly theft Great location flexibility Can add devices using: FireWire USB ports PC cards
- 19. 19 Number of Subscribersin Hong Kong Mobile Phone Fixed Telephone Broadband Internet Will wireless Internet take off?
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