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Welcome students, I look forward to working with you this semester, check this site frequently for updates and assignments.
~ JON ~
| Chapter 3 Notes |
| Chapter 4 Notes |
| Chapter 5 Notes |
| Chapter 6 Notes |
| Chapter 7 Notes |
| Chapter 8 Notes |
| Chapter 9 Notes |
| Port Identification |
~ IST ~
Chapter 8
• Advantages and limitations of mobile computing
– Advantages
• Convenience
• Boost productivity
• Communicate with others anywhere
• Access to electronic information
– Limitations
• Expensive
• Battery life
• Small screen display
• Slow Internet speed
• Mobile computing devices:
– Pagers
• Small wireless devices that receive numeric messages (phone numbers)
• Recent technological advancements enable:
• Voice paging:
• Receiving voice messages
• Alphanumeric paging:
• Receiving numeric and text messages
• Two-way paging:
• Receiving and sending text messages
– Cell phones
• Microprocessor (CPU):
• Coordinates data between components
• Runs the operating system
• Memory:
• ROM stores the operating system
• Internal memory chips store:
• Contact data
• Ring tones
• Images
• Small application programs
• Input devices:
• Microphone
• Keypad
• Graffiti pad
• Touch-screen
• Digital camera
• Output devices:
• Speaker
• LCD display
– PDAs
• Small devices that store digital information
• Known as palm computers or handhelds
• PDA hardware includes:
• CPU
• Operating system
• Storage capabilities
• Input/output devices
• Ports
• Input devices
• Touch-screen with stylus
• Keyboards:
• On-screen
• Digital cameras
• Output devices
• LCD displays:
• Audio
• Comparing processors:
• Speed
• Performance:
• Benchmarking
• Power consumption
• PDA files can be transferred to a desktop using:
• Flash card readers
• Cradles
• Synchronizing updates files on both the PDA and desktop
• Wireless transfers:
• IrDA
• Bluetooth
– Portable media players
• MP3:
• Format for storing music
• Portable media player (PMP):
• A small device that stores and plays music
• Storage space determines the number of songs stored:
• Memory chips 64 MB to 4gb
• Used to add additional memory to portable media players
• Types of flash memory:
• Compact Flash:
• Multimedia (MMC) and SmartMedia:
• Secure Digital:
• Sony Memory Stick:
• Software enables transfer of audio and video files
• Hard drive up to 120 GB
• Sampling rate also affects
• number of songs stored
• Synchronizing mobile devices with computers
• Tablet PCs
– Portable computers with handwriting recognition and speech recognition
– Two monitor modes:
• Laptop
• Tablet
– Tablet PC hardware includes:
• CPU
• Storage capabilities
• Input/output devices
• Ports
– Digital ink technology:
• Pressure sensitive screen
• Digital pen
• Notebooks
– Computing power of a desktop
– Weigh 6 pounds or less
– Hardware
• DVD/CD-RW drives
• Hard drives
• RAM
• Hot-swappable bays:
• Remove a drive and replace it with another type
• Keyboard
• Built-in mouse
• LCD displays