The document describes the E-Ball, a concept for a spherical computer. Key aspects of the E-Ball include its small 6-inch diameter size, LCD projector for displaying content on walls or paper, and laser keyboard that projects onto surfaces. The E-Ball would contain standard computer components like a hard drive, RAM, and processor in a portable, sphere-shaped device for presentations or use when a traditional computer is not available or practical.

1. Name : Vadadoriya Subhash S.
En No. : 120590116011
Sem. : 5th
Branch : Information & Technology

2. E-BALL

3. Key Points
 Vision
 Introduction
 Size of E-Ball
 Elements of E-Ball
 Working of E-Ball
 Features of E-Ball
 LCD & DLP projectors
 Laser keyboard
 If there is no wall?
 Advantages of E-Ball
 Disadvantages
 Conclusion
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4. Vision

5. INTRODUCTION
• The E-Ball is a sphere shaped computer concept which is the smallest design
among all the laptops and desktops have ever made.
• It’s not going to be like a PDA, it’s going to be a PC with all conventional
components namely mouse, keyboard, normal screen.
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6. Size Of E-Ball
• E-Ball is very small, it is having only 6 inch diameter sphere.
• It is having 120×120mm motherboard.
• Smallest PC ever made.
• 160mm round sphere.

7. The Start of E-ball
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8. Features of E-Ball
• It contains wireless optical mouse and laser keyboard, and LCD projector, Paper holder.
• It has around 350-600GB of Hard Disk Drive.
• It contains 5GB RAM.
• It has two 50W speakers.
• It has LAN and WLAN card and a Web cam.
• i-tech Virtual keyboard
• Dual core processor
• Integrated graphics and sound card
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9. Elements of E-Ball
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10. Basic Hardware
Hard Disk RAM Projector

11. Working of E-Ball
 Key board :Infrared rays & laser
 Mouse: RF receiver & RF transmitter
 LCD projector
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12. Projectors which can be used in E-ball are
1. LCD projectors 2. DLP Projectors
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13. LCD projector
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14. Contd…
• Metal halide lamp is emitting the light.
• Series of di-chroic filters are separates light.
• 3 polysillicon panels placed in red, blue, green color's
• These primary color's are making the image.
• Metal halide lamps are output an ideal color temperature.
• LCD technology is used by many manufactures such as Epson, Hitachi, and NEC.
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15. Advantages of LCD
 LCD is generally more light efficient than DLP.
 3LCD projectors can project bright, vivid images with a low output lamp.
 1000 lumen LCD is more preferred than 1200 lumen DLP .
 LCD trends to produce a sharper image.
 More accurate color.
 Sharper image
 More light efficient.
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16. Disadvantages
 More bulky as there are more internal components.
 Dead Pixels.
 LCD panel can fail
 Screen door effect.
 Contrast.
 Portability.
 Image degradation.
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17. DLP projectors
 DLP-Digital Light Processing.
 Worlds only all-digital display solution.
 DLP technology is based on semiconductors called DMD chips.
 Invented in 1987 by Texas.
 DMD chips made up of many tiny mirrors.
 Current DMD chip can produce 1024 shades of grey.
 Found in projectors manufacturers of BenQ, InFocus and Optoma.
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18. Contd..
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19. Advantages
 Portability.
 Higher contrast.
 Reduced pixilation.
 Reliability.
 Sealed optics this makes it better for use in dusty environment.
 Less screen door effect.
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20. Disadvantages
 Rainbow effect.
 Light leakage.
 High cost.
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21. Laser keyboard (virtual keyboard)
 A Virtual Keyboard is a projection keyboard that is projected and touched on any
surface
 User operates by typing on or within a wireless or optical -detectable surface or
area rather than by depressing physical keys.
 Proved nightmare for users
 Way to eliminate finger cramping
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22. What Actually it is:-
 Keyboard that a user operates by typing (moving fingers) on or within a wireless
or optical-detectable surface or area rather than by depressing physical keys.
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23. Advantages of Virtual Key-Board:-
• Portability
• Accuracy
• Speed of text entry
• Lack of need for flat or large typing surface
• Ability to minimize the risk for repetitive strain injuries
• Flexibility
• Keyboard layouts can be changed by software allowing for foreign or Alternative
keyboard layouts.
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24. If there is no wall?
 When we are working in an open place we can make use of a paper sheet as a
screen.
 paper sheet holder is placed at the back panel of this computer.
 The holder can be opened by pressing it in the lower part
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26. Scenarios of use
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27. Advantages of E-Ball
 It is portable.
 E-Ball has large memory.
 Useful for making video presentations.
 These have greater speed.
 Supports user-defined keyboard layouts
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28. Disadvantages of E-Ball
 It support only Microsoft Windows OS,not any other OS support.
 Cost of E-Ball is very high.
 It is difficult to understand if any problems occur in hardware components.
 Plane surface required for using the keyboard
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29. E-Ball Design By
 Apostol Tnokovski