Mobile Device

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A Mobile Device is a portable and adaptable electronic/digital device which typically consists of some combination of the following:

  • Display (presentation area, most modern mobile devices now present all information in color, however previous devices displayed in black & white or grayscale)
  • Key-Pad or Touch-Screen control interface
  • Memory
  • External Memory slots (SD Card, HD Card, zip drive, USB, etc)
  • Power Adapter
  • Operating System


Portable Game Systems


   * CPU: Custom 8-bit Sharp LR35902[35][unreliable source?] core at 4.19 MHz which is similar to an Intel 8080 in that all of the registers introduced in the Z80 are not present. However, some of the Z80's instruction set enhancements over the stock 8080, particularly bit manipulation, are present. Still other instructions are unique to this particular flavor of Z80 CPU. The core also contains integrated sound generation
   * RAM: 8 kB internal S-RAM
   * Video RAM: 8 kB internal
   * ROM: On-CPU-Die 256-byte bootstrap; 256 kb, 512 kb, 1 Mb, 2 Mb, 4 Mb and 8 Mb cartridges
   * Sound: 2 Square Waves, 1 programmable 32-sample 4-bit PCM Wave, 1 White noise. The unit only has one speaker, but headphones provide stereo sound (for further information, see Game Boy music)
   * Display: Reflective LCD 160 × 144 pixels
   * Screen size: 66 mm (2.6 in) diagonal
   * Color Palette: 4 shades of "gray" (green to (very) dark green)
   * Communication: Up to 2 Game Boys can be linked together via built-in serial ports, up to 4 with a DMG-07 4-player adapter. More than 4 players is possible by chaining adapters.
   * Power: 6 V, 0.7 W (4 AA batteries provide ~35 hours)
   * Dimensions: 90 mm (W) x 148 mm (H) x 32 mm (D) / 3.5" x 5.8" 1.3" (in)



   * Main processor: Zilog Z80 (8-bit)[3]
   * Processor speed: 3.58 MHz[3] (same as NTSC dot clock)
   * Resolution: 160 x 144 pixels
   * Colors available: 4,096[3]
   * Colors on screen: 32[3]
   * Maximum sprites: 64
   * Sprite size: 8x8 or 8x16
   * Screen size: 3.2 inches (81 mm)
   * Audio: 3 square wave generators, 1 noise generator, the system has a mono speaker, but stereo sound can be had via headphone input
   * RAM: 8 KB
   * Video RAM: 16 KB
   * Power:
         o internal: 6 AA batteries[3]
         o external: 9V DC, 300mA, 3W[5][unreliable source?]
   * Physical:
         o Width: 209mm
         o Height: 111mm
         o Depth: 37mm
         o weight: ~400g


Cell Phones

Nokia n95

Feature Specification
Form factor two-way slider
Operating System Symbian OS v9.2, S60 3rd Edition, Feature Pack 1
Screen QVGA Matrix, diagonal 2.6" (N95-1, N95-3, N95-5) or 2.8" (N95-2, N95-4, N95-6), 16 million colours, 240x320 pixels
Size 99 x 53 x 21mm
CPU Dual 332 MHz Texas Instruments OMAP 2420 (ARM11-based)[3]
Internal Dynamic Memory (RAM) 128 MB (55.9 MB for N95-1)
Internal Flash Memory 147.3 MB (8 GB for 8GB versions)
Camera Frontal CIF video call & Main rear 5 Megapixel camera with auto-focus, Carl Zeiss optics, capture Aspect ratio (image) 4/3 (1.33:1)
Video recording yes, VGA (640x480) video capture of up to 30 fps, same aspect ratio as camera see above
Graphics Fully HW accelerated 3D (OpenGL ES 1.1, HW accelerated Java 3D)
Memory card slot Yes, microSD/microSDHC (except N95-4; 8GB model)
Bluetooth Yes, 2.0 + EDR
GPS Texas Instruments GPS5300 NaviLink 4.0 (receiver located under the 0 key)
Wi-Fi Yes, with wireless LAN (802.11 b/g) and UPnP (Universal Plug and Play)
Infrared Yes
Data cable support Yes, USB 2.0 via mini USB port
Email Yes (ActiveSync, POP3, IMAP4 and SMTP, with SSL/TLS)
Music player Yes, Stereo speakers with 3D audio
Radio Yes, Stereo FM Radio, and Visual Radio (wired headphones or hands-free required)
Video Player/editor Yes
Polyphonic tones Yes, 172 chords
Ringtones Yes, MP3/AAC/AAC+/eAAC+/WMA/M4A, RealAudio
HF speakerphone Yes, with 3.5 mm audio jack and 2.1A2DP wireless stereo headphone support
Offline mode Yes
Battery BL-6F 1200 mAh (BL-5F 950 mAh for N95-1)
Talk time up to 160 min (WCDMA), up to 240 min (GSM)
Standby time up to 200 hours (WCDMA) or 225 hours (GSM)[1]
Latest firmware v31.0.017 (adds hack protection to v30.0.015)


Apple's iPhone

   * Screen size: 3.5 in (89 mm)
   * Screen resolution: 480×320 pixels at 163 ppi, with 3:2 aspect ratio
   * Input devices: Multi-touch screen interface plus a "Home" button and "Sleep/Wake" located on the top of the iPhone.
   * Built-in rechargeable, non-removable battery
   * 2 megapixel camera
   * Location finding by detection of cell towers and Wi-Fi networks
   * Samsung S5L8900 (412 MHz[5] ARM 1176 processor, PowerVR MBX 3D graphics co-processor)[25]
   * Memory: 128 MB DRAM[7]
   * Storage: 8 GB or 16 GB flash memory
   * Operating System: iPhone OS
   * Quad band GSM / GPRS / EDGE: GSM 850 / 900 / 1800 / 1900
   * Wi-Fi (802.11b/g)
   * Bluetooth 2.0 with EDR
   * 20Hz to 20kHz frequency response (both internal and headset)

Original model

   * 4 GB model (discontinued after two months), 8 GB model or 16 GB model
   * Size: 4.5 inches (115 mm) (h) × 2.4 inches (61 mm) (w) × 0.46 inch (11. mm) (d)
   * Weight: 135 g (4.8 oz)
   * Battery has up to 8 hours of talk, 6 hours of Internet use, 7 hours of video playback, and up to 24 hours of audio playback, lasting over 250 hours on standby.[26]
   * Headphone jack (recessed)
   * Digital SAR of 0.974 W/kg[27][28]

3G model

   * Color: Black (8 GB or 16 GB) or white (16 GB)
   * Size: 4.5 inches (115.5 mm) (h) × 2.4 inches (62.1 mm) (w) × 0.48 inch (12.3 mm) (d)
   * Weight: 133 g (4.7 oz)
   * Headphone jack (non-recessed)
   * Battery has up to 10 hours of 2G talk, 5 hours of 3G talk, 5 (3G) or 6 (Wi-Fi) hours of Internet use, 7 hours of video playback, and up to 24 hours of audio playback, lasting over 300 hours on standby.[8]
   * 3G for broadband data speeds (Tri band UMTS / HSDPA: UMTS 850 / 1900 / 2100)
   * Assisted GPS, with preference to location based on Wi-Fi or cell towers
   * Digital SAR Rating: 1.38 W/kg



Tablets are essentially Mobile Devices with screens larger than would be practical for a Mobile phone, whose screens tend to be smaller (though the lines are becoming blurred with the introduction of unconventionally large screens for Phones, usually 5″ to 7″ diagonally, often dubbed "Phablets"[6][7][8]). In function, there is not much difference between modern phones and tablets with the exception being equipped with built-in voice and data network chips (e911, GSM, CDMA, LTE, etc), though some have better capabilities (as well as input/output options) for connecting to and presenting on a widescreen or projection/TV screen. Some also offer more custom-tailored applications or user interfaces for "10 foot User Experiences" (or using the device at a distance).

[9] [10] [11] [12] [13]

Mobile Medicine

Use in Education




External Links


  1. wikipedia:Game Boy
  2. wikipedia:Sega Game Gear
  3. TI OMAP 2420 processor specification
  4. wikipedia:Nokia N95
  5. wikipedia:iPhone
  6. The rise of the Phablet:
  7. Bigger And Better - Trends in Mobile Screen Sizes:
  8. The Rise of the Enormo-Phone -- A disturbing trend toward gargantuan devices like the new Samsung Galaxy Note:
  9. The Great Tablet Flood (2011):
  10. Yahoo! Survey Reveals Tablet Habits of the Average U.S. Home:
  11. Nexus 7 vs Playbook | 7-inch Form Factor is Here To Stay:
  12. Laptops, Tablets: Research Says There's Still A Strong Market:
  13. Google was never really serious about tablets:
  14. Tips for buying used and unlocked phones:
  15. Common Screen Resolutions (2014):

See Also

Mobile | Laptop | Tablet | Mobile Phone | SmartWatch | Wearables