1. Computers and Mobile Devices
Joan Wells

2. Types of Systems Servers – access to networks Microcomputers
Desk Tops
Servers – access to networks
Mainframe
Mini Computer
Super Computers
Terminals
Limited processing, monitor, connection to a network, keyboard and memory
Point-of-Sale Terminals (POS)
Cash register, Bar code reader, (laser) printer
Outputs price, item, on a receipt
Maintains sales records
Automated Teller Machines (ATM)
PC - microcomputer or micro used by one person.
Macintosh –Apple, Used for graphics, publishing and multimedia industries. First graphical interface
Desk top – detachable keyboard, mouse, monitor (sound, speakers, mic, cam, flash drives, CDs, used for business and home.
PC and Mac (popular with graphics designers and gaming
2. Servers manage network resources thru administrative sw
Provides desktop with internet services; web server processes web pages; file server handles storage and retrieval tasks; printer server just for printing.
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3. More Systems Notebooks (laptops) – portable or mobile
Rechargeable battery to provide power
Built-in display screen or keyboard pointing device
Possible to connect to detachable drives.
Tablet – similar to a notebook (about 3 lbs.)
Convertible screen pivots (notebook or a clipboard.)
Advanced handwriting recognition – converts to digital.
Speech recognition record discussions or lectures
Control the computer using voice commands.
Cloud Computing – On- line Storage
Resources include:
, music, photos
Web apps, storage
Business programs, servers
Global
Free or fee depending on use
hand-held - designed for a specific purpose (meter reading, inventory counting) by workers who move from place to place.
Today: play music, take photos, search the Net
palmtop - calendar, scheduling, phone list, addresses, task to-do list. Note taking, financial analysis. No storage (disk drive), no std. keyboard
subnotebooks - less than 4 lbs.; no disk drives; uses memory cards .
laptop lbs.; hard-disk storage; larger display screens.
PDA Personal Digital Assistant Small handheld computers, smart phones, calendar, organizer, scheduler. send over the Net.
Use a stylus (pointed device used to input information) Small, detachable keyboard for text and data entry.
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4. The Big Computers Mainframe Supercomputer Run fewer programs faster
1000s of users, vast storage, multitasking
Supercomputer
Sophisticated math calculations, weather forecasting
Run fewer programs faster
2. network computers - connected to net; not stand-alone; TV monitor
3. Mainframe - Hundreds of users, rapid transmission, large storage.
Need special environment; $300,000 - several million.
5. Supercomputers - 100s of millions instructions per second; used for weather, space, engineering design; several million dollars.
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5. Mobile Devices Pocket size
Store programs and data permanently on memory
inside the system unit
on small media storage
Memory cards
Types of Mobile Devices:
Smart phones
Portable media players
Digital cameras
The Portable Media Server Player holds: Up to 34,000 digital photos - Up to 30,000 songs (MP3) - Up to 3,000 songs (Uncompressed CD quality) - Up to 9 hours of Digital Video (DV) - Up to 50 hours of DVD quality video
The number of photos, songs, videos and any other files that can be stored on the Portable Media Server Player will vary based on file size and format, settings, features, software and other factors.
Simply transfer and organize your standard definition multimedia content from your PC/ laptop to your Portable Media Server Player. For playback viewing, connect the Portable Media Server Player to your TV/ display.
Transfer your multimedia content from your PC/ laptop: Connect your Portable Media Server Player to your PC or laptop via an USB port with the provided USB cable. Then, transfer and organize your photos, music and movies to the Portable Media Server Player.
Connecting your Portable Media Server Player to your TV/ display: Connect your Portable Media Server Player to your HDTV, standard definition TV, display or any AV pass through device with the provided component and/or composite cables for video and audio connection.

6. Mobile Device Limitations
Ch. 3 Computers and Mobile Devices
Mobile Device Limitations
Battery life limits the usefulness of some mobile devices
The screen is small on most devices
The speed of the Internet connection available is low
Mobile computing devices are more expensive and less rugged than desktop systems
Vibration, falls, dust, and liquids can destroy your notebook, iPod or smartphone
Consider additional warranty, repair bills, and replacement costs.

7. Mobile Device Buyer’s Guide
Ch. 3 Computers and Mobile Devices
Mobile Device Buyer’s Guide
Choose a wireless carrier and plan within your means
Consider size, style and weight
Compatible with program
Synchronizing messages
Contacts, calendar
Choose sufficient battery life
Choose enough memory and storage
Photos, videos, apps
Accessories
Earbuds
Screen protectors
Carrying cases
Mobile Device Buyer's Guide
Mobile devices such as smartphones, digital cameras, and portable media players are quite popular among people who are frequently on the go. Research the manufacturers and then consider the following guidelines before purchasing a mobile device.
Smartphone Purchase Guidelines
Choose a wireless carrier and plan that satisfies your needs and budget.
Decide on the size, style, and weight of the smartphone that will work best for you.
Determine whether you prefer an on-screen keyboard, keypad, or mini keyboard.
Select a smartphone that is compatible with the program you want to use for synchronizing your messages, contacts, calendar, and other data.
Choose a smartphone with sufficient battery life that meets your lifestyle.
Make sure your smartphone has enough memory and storage for contacts, messages, photos, videos, and apps.
Consider purchasing accessories such as extra batteries, earbuds, screen protectors, and carrying cases
Buyer
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8. A Smart Phone Smart Phone Features Email, Web Media Player
Ch. 3 Computers and Mobile Devices
A Smart Phone
A mobile phone built on a mobile computing platform
advanced computing ability
connectivity
Includes:
High-resolution touchscreens
Web browsers
Smart Phone Features
, Web
Via WiFi or Data plan
Media Player
Digital Camera
Mic, Bluetooth headset
Live video interaction
Audio (Apple Seri)
Wireless access point
Connect to wired Net using WiFi
A smartphone is a mobile phone built on a mobile computing platform, with more advanced computing ability and connectivity than a feature phone
Modern smartphones typically also include high-resolution touchscreens, web browsers that can access and properly display standard web pages rather than just mobile-optimized sites, and high-speed data access via Wi-Fi and mobile broadband. The most common mobile operating systems (OS) used by modern smartphones include Google's Android, Apple's iOS, Nokia's Symbian, RIM's BlackBerry OS
Advanced application programming interfaces (APIs) on smartphones for running third-party applications[4] can allow those applications to have better integration with the phone's OS and hardware than is typical with feature phones. In comparison, feature phones more commonly run on proprietary firmware, with third-party software support through platforms such as Java ME or BREW.[
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9. Software and Accessories
Ch. 3 Computers and Mobile Devices
Software and Accessories
Modified versions of application software are available for PDA/smartphones.
Read and edit files that can be transmitted to full-version applications on your computer.
Games, tools, and reference applications are available from numerous software companies. A good source is and
Software and Accessories
Modified versions of application software are available for PDA/smartphones. You can read and edit files that can be transmitted to full-version applications on your computer. In addition, a variety of games, tools, and reference applications are available from numerous software companies. A good source is and

10. Ch. 3 Computers and Mobile Devices
Text Messaging
Short message service (SMS) allows you to send short text messages (as many as 166 characters) over mobile networks.
A numeric keypad is used to type your message.
Send texts to another mobile device or any address.
Send short messages from your computer to mobile devices.
Multimedia message service (MMS)
Send images, and video clips to other phones and addresses.
Messages arrive in a series
View text, then image, then sound. Save just one part of the message.
Web Feed
Atom – updated Web resources
Really Simple Syndication (RSS)
Financial, sports, and weather services
Send automatically to phones using MMS.
Text Messaging
Short message service (SMS) allows you to send short text messages (as many as 166 characters) over mobile networks. A numeric keypad or pre-saved template is used to type your message. You can send texts to another mobile device or any address. You can also use SMS to send short messages from your computer to mobile devices.
Multimedia message service (MMS) is an extension of SMS that allows you to send images, and video clips to other phones and addresses. MMS messages arrive in a series; view the text, then the image, then the sound. You can choose to save just one part of the message. MMS users can subscribe to financial, sports, and weather services that will push information to them, sending it automatically to their phones using MMS.
Atom is the name of an XML-based Web content and metadata syndication format, and an application-level protocol for publishing and editing Web resources belonging to periodically updated Web sites. All Atom feeds must be well-formed XML documents, and are identified with the application/atom+xml media type. [Source: AtomEnabled]
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11. Ch. 3 Computers and Mobile Devices
Accessories

12. Using a Point and Shoot Digital Camera
Ch. 3 Computers and Mobile Devices
Using a Point and Shoot Digital Camera
Advantages of Digital Camera
View results immediately
Modify while in the camera
Transfer images to a computer
Some record video
May be integrated into a smartphone
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Point & Shoot Features
Light-weight
Built-in lens
Smart phones
Autofocus, zoom
Still image (some video)
Some GPS, waterproof
Some memory card (transfer)
Some edit, print, share photos

13. Digital Camera Single Lens Reflex (SLR)
Ch. 3 Computers and Mobile Devices
Digital Camera Single Lens Reflex (SLR)
Features of an SLR Camera
High –end
Interchangeable lenses
Variety of lenses
Uses mirror to display exact replica of image
Heavier, larger
Cost is higher
Some extra features:
Autofocus, zoom
Still image (some video)
Some GPS, waterproof
Some memory card (transfer)
Some edit, print, share photos
A digital camera (or digicam) is a camera that takes video or still photographs by recording images on an electronic image sensor. Most cameras sold today are digital[1], and digital cameras are incorporated into many devices ranging from PDAs and mobile phones (called camera phones) to vehicles.
Digital and film cameras share an optical system, typically using a lens with a variable diaphragm to focus light onto an image pickup device. The diaphragm and shutter admit the correct amount of light to the imager, just as with film but the image pickup device is electronic rather than chemical. However, unlike film cameras, digital cameras can display images on a screen immediately after being recorded, and store and delete images from memory. Many digital cameras can also record moving video with sound. Some digital cameras can crop and stitch pictures and perform other elementary image editing.
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14. Viruses and Virus Protection
Ch. 3 Computers and Mobile Devices
Cell phones are being targeted by malicious viruses
Users use cell phones for sensitive data ( , financial banking.)
An expensive virus can allow your phone to be used without your permission or knowledge to make calls.
 Leading companies currently providing antivirus software for mobile devices.
Symantec, McAffee, and F-Secure are the
Common sense defense includes
Not downloading ring tones, games or other software from unfamiliar Web sites .
Check the phone manufacturer’s Web sites frequently to see whether your phone needs updates that could patch security holes.
McAffee ClamWin Portable Panda Vigator
Viruses
Cell phones are being targeted by malicious viruses because users use cell phones for sensitive data ( , financial banking.) An expensive virus can allow your phone to be used without your permission or knowledge to make calls.
Virus Protection
Symantec, McAffee, and F-Secure are the leading companies currently providing antivirus software for mobile devices. Common sense defense includes not downloading ring tones, games or other software from unfamiliar Web sites . Check the phone manufacturer’s Web sites frequently to see whether your phone needs updates that could patch security holes.

15. Ch. 3 Computers and Mobile Devices
Flash Memory Cards
CompactFlash cards, the size of a matchbook, can hold between 4GB and 64GB of data.
Multimedia cards and SmartMedia cards
Similar size but are thinner and less rugged.
Secure Digital card
Faster and offers encryption capabilities so that your data is secure even if you lose the card.
Warning: Particular models of PMPs can support only certain types of flash cards, so check your manual to be sure you buy compatible memory cards.
Flash Memory Cards
CompactFlash cards, the size of a matchbook, can hold between 4GB and 64GB of data. Multimedia cards and SmartMedia cards are about the same size but are thinner and less rugged. A newer type of memory card called Secure Digital is faster and offers encryption capabilities so that your data is secure even if you lose the card. Particular models of PMPs can support only certain types of flash cards, so check your manual to be sure you buy compatible memory cards.
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16. Ch. 3 Computers and Mobile Devices
File Transfer
Flash Card
Cradle
To transfer data, remove the flash card you are using and slip it into the flash card reader on your computer.
If your computer does not include a built-in card reader, you can purchase an external memory card reader that connects to your computer using a USB port.
You can also transfer your data from your PDA/smartphone to a desktop computer by using a cradle Most PDA/smartphones come with a cradle that connects the device to the desktop using a USB port.
File Transfer
To transfer data, remove the flash card you are using and slip it into the flash card reader on your computer. If your computer does not include a built-in card reader, you can purchase an external memory card reader that connects to your computer using a USB port. You can also transfer your data from your PDA/smartphone to a desktop computer by using a cradle Most PDA/smartphones come with a cradle that connects the device to the desktop using a USB port.
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17. Synchronization between a PDA/Smartphone and a Computer
Ch. 3 Computers and Mobile Devices
Synchronization between a PDA/Smartphone and a Computer
Update your files: Synchronize to coordinate changes to other files with the files on your computer.
Cradle (or attach it to the computer using a USB cable)
Touch a “sync” button to begin the process of data transfer
Updates both sets of files to the most current session.
Bluetooth enabled.
A small chip that allows you to transfer data wirelessly to any other Bluetooth-enabled device
An infrared (IrDA) port that transmits data signals using infrared light waves.
Use the infrared port and “beam” data directly across to transfer data between two devices
Could just point their device at yours and send you the file.
If your device is Bluetooth enabled, you can send it directly as well.
Not restricted to line of sight between the two devices to communicate.
Synchronization between a PDA/smartphone and a Computer
To coordinate changes you make to your contacts and To Do list, and other files with the files on your computer, you can update or synchronize. Place your PDA/smartphone on its cradle (or attach it to the computer using a USB cable, and touch a “sync” button. This begins the process of data transfer that updates both sets of files to the most current session. You can synchronize if your devices are Bluetooth enabled.
Some PDA/smartphones include an infrared (IrDA) port that transmits data signals using infrared light waves. To transfer data between two devices, you can use the infrared port and “beam” data directly across. Given this capability, someone could just point their device at yours and send you the file.
If your device is Bluetooth enabled, (has a small chip that allows you to transfer data wirelessly to any other Bluetooth-enabled device, you can send it directly as well. One advantage that Bluetooth has is that it is not restricted to line of sight between the two devices to communicate.

18. Wearable Computer Google Glass
Ch. 3 Computers and Mobile Devices
Wearable Computer
Google Glass
Google Glass is a wearable computer with an optical head-mounted display (OHMD). It was developed by Google[8] with the mission of producing a mass-market ubiquitous computer.[1] Google Glass displays information in a smartphone-like hands-free format.[9] Wearers communicate with the Internet via natural language voice commands.[10][11]
Google provides four prescription frame choices for about $ U.S. It is necessary to remove a small screw in order to move the Google Glass from one frame to another. Google entered in a partnership with the Italian eyewear company Luxottica, owners of the Ray-Ban, Oakley, and other brands, to offer additional frame designs.[12] Google sold Google Glass in the USA from 15 April 2014 for a limited period of time for $1500.[13]

19. What is Haptics? Touch Screens Touch Back
Ch. 3 Computers and Mobile Devices
What is Haptics?
Touch Screens Touch Back
Haptic effects (touch or tactile feedback)
Actuators built into devices to create vibrations
Feel of a button click
Gun recoil (gaming)
Make screen feel like fur
Produce a sense of realism
Improve the user experience
Found in mobile phones, tablets, gaming controllers
Saved as resources to be used in games
“Haptics” is the study of touch. Haptic effects (also known as touch or tactile feedback) are produced by actuators, such as motors, which are built into devices to create vibrations. These actuators are combined with Immersion software to create haptic sensations, like the feel of a button “click” when you press a virtual button. Haptics provide a sense of realism and improve the user experience, and are found in consumer devices like mobile phones, tablets, and gaming controllers. Learn More ►
Haptics is Quite Literally The Science of Touch.
The origin of the word haptics is the Greek haptikos, meaning able to grasp or perceive. Haptic sensations are created in consumer devices by actuators, or motors, which create a vibration. Those vibrations are managed and controlled by embedded software, and integrated into device user interfaces and applications via the embedded control software APIs.
You’ve probably experienced haptics in many of the consumer devices that you use every day. The rumble effect in your console game controller and the reassuring touch vibration you receive on your smartphone dial pad are both examples of haptic effects. In the world of mobile devices, computers, consumer electronics, and digital devices and controls, meaningful haptic information is frequently limited or missing. For example, when dialing a number or entering text on a conventional touchscreen without haptics, users have no sense of whether they’ve successfully completed a task.
With Immersion’s haptic technology, users feel the vibrating force or resistance as they push a virtual button, scroll through a list or encounter the end of a menu. In a video or mobile game with haptics, users can feel the gun recoil, the engine rev, or the crack of the bat meeting the ball. When simulating the placement of cardiac pacing leads, a user can feel the forces that would be encountered when navigating the leads through a beating heart, providing a more realistic experience of performing this procedure.
Haptics can enhance the user experience through:
Improved Usability: By restoring the sense of touch to otherwise flat, cold surfaces, haptics creates fulfilling multi-modal experiences that improve usability by engaging touch, sight and sound. From the confidence a user receives through touch confirmation when selecting a virtual button to the contextual awareness they receive through haptics in a first person shooter game, haptics improves usability by more fully engaging the user’s senses.
Enhanced Realism: Haptics injects a sense of realism into user experiences by exciting the senses and allowing the user to feel the action and nuance of the application. This is particularly relevant in applications like games or simulation that rely on only visual and audio inputs. The inclusion of tactile feedback provides additional context that translates into a sense of realism for the user.
Restoration of Mechanical Feel: Today’s touchscreen-driven devices lack the physical feedback that humans frequently need to fully understand the context of their interactions. By providing users with intuitive and unmistakable tactile confirmation, haptics can create a more confident user experience and can also improve safety by overcoming distractions. This is especially important when audio or visual confirmation is insufficient, such as industrial applications, or applications that involve distractions, such as automotive navigation.
We have grown fond of using our fingertips to navigate our computing devices, but screens rarely return the love. Enter haptic technology, which uses vibrations to provide feedback to touchscreen users. Haptics is great for games but could soon be used to make screens feel like other surfaces, such as wood or paper or fur. Here's how it works:
1. Motor: Haptic-enabled devices are outfitted with tiny internal motors; when you flick at the screen, some motors might start spinning, while others might move up and down. A weight affixed to the shaft of the motor creates a vibration.
2. Software: Special software on microchips in the device tells the motors what the vibration should feel like to the user: how strong, how long, and what shape it should be.
3. Applications: Today haptics is used in phones such as the LG Dare, which uses vibrations to confirm data input. But technologists think haptics could turn computer screens into interactive tools for the sight impaired—a digital version of Braille.
Posted in: haptics, LG Dare, touchscreens
Vibrations to confirm data input

20. So many ways, so little time . . .
Ch. 3 Computers and Mobile Devices
So many ways, so little time . . .