31-03-2012, 01:11 PM
Tablet PC
[attachment=19336]
ACKNOWLEDGEMENT
I extend my sincere thanks to, Head of the Department for
providing me with the guidance and facilities for the Seminar.
I express my sincere gratitude to Seminar coordinator,
Staff in charge, for their cooperation and guidance for preparing and presenting this
seminar.
I also extend my sincere thanks to all other faculty members of Electronics
and Communication Department and my friends for their support and encouragement.
2
1. Abstract:
A Tablet PC is a notebook- or slate-shaped mobile computer. Its touchscreen or
digitizing tablet technology allows the user to operate the computer with a stylus or
digital pen instead of a keyboard or mouse.
The form factor presents an alternate method of interacting with a computer, the
main intent being to increase mobility and productivity. Tablet PCs are often used in
places where normal notebooks are impractical or unwieldy, or do not provide the needed
functionality.
The Tablet PC is a culmination of advances in miniaturization of notebook
hardware and improvements in integrated digitizers as methods of input. A digitizer is
typically integrated with the screen, and correlates physical touch or digital pen
interaction on the screen with the virtual information portrayed on it. A tablet's digitizer
is an absolute pointing device rather than a relative pointing device like a mouse or
touchpad. A target can be virtually interacted with directly at the point it appears on the
screen.
In general terms, Tablet PC refers to a slate-shaped mobile computer device,
equipped with a touchscreen or stylus.
2. Introduction:
A Tablet PC is a PC that has a touch screen. Most of the Tablet PCs will not have
built-in keyboards however users will be able to plug in keyboards if they want to. The
main method of input is handwriting recognition similar to Transcriber on the Pocket
PC. Also, the Tablet PC is unique in it's support for ink notes as well.
In general terms, tablet PC refers to a slate or tablet shaped mobile computer device,
equipped with a touch screen.
The term Tablet PC was made popular in a product announced in 2001
by Microsoft, and defined by Microsoft to be a pen-enabled computer conforming to
hardware specifications devised by Microsoft and running "Windows XP Tablet PC
Edition" operating system.
The Tablet PC is not only perfect for project-based application users that require
the power of inking or easy pen-driven navigation, but also for mobile professionals who
must have a keyboard and integrated media drive all included in one unit. Taking
advantage of the industry-first bi-directional swivel hinge, you can easily transform this
standard notebook into a tablet configuration by rotating (in either direction) and folding
the screen. Collect data efficiently and accurately using the stylus to make handwritten
notes and drawings with digital ink. To enter data using the keyboard, tilt up and rotate
the screen (follow the arrow indicator) to a notebook configuration. The stylus and active
digitizer continue to work in the notebook configuration.
The evolution of the tablet PC is similar to that of the laptop computer, the
netbook, and the smartphone: Companies aren't so much selling us a better computer as
they are selling us new ways to use computers.
6
However, consumers want something more portable than a laptop, more powerful
than a netbook, and more comfortable than a smartphone--and a new tablet PC could very
well fill all of those needs, in many different ways. People who love their e-readers but
want something a little more versatile would likely love the Adam by Notion Ink, for
example, while fans of touchscreen smartphones should pay close attention to Dell's
concept Android tablet, which could offer similar Internet functions with a much more
comfortable user experience.
Tablet PC is a portable computer having low weight (max 1.5 kg) and
consumption. Its dimensions range between a PDA and a classical NTB (usually from 9"
to 14"). It is controlled by touch screen and a special pen. Tablet PC runs on classical
operating systems containing support for Tablet PCs or on systems specifically developed
for Tablet PCs, e.g. Windows Tablet PC. You can take handwritten notes directly on the
screen and convert them to digital text or to save them for later viewing or processing in
other applications. You can also use classical keyboard or a mouse with your Tablet PC,
but they can be fully replaced by the touch screen or voice control. Two basic types of
Tablet PCs are: Slate providing full mobility without the need of using a mouse and
keyboard, or Convertible with integrated keyboard and removable touch screen (usually
with a pivot screen) = looks much like a conventional notebook.
A tablet PC is a truly portable computing tool. It is as powerful as a modern PC,
but it doesn't require a keyboard. Instead, using "digital ink" technology, you can add
information by writing on the screen (or "tablet") with a digital pen or "stylus," much like
you do in a patient's paper chart. There are two main types of tablet PCs: a slate tablet
PC, which is a tablet with no attached keyboard (though one can be added), and a
convertible tablet PC, which is basically a laptop computer with a screen that can swivel
and fold onto the keyboard to create the tablet.
7
Tablet PCs are regular PCs. Some developers and users still think that Tablet PCs
somehow run on a special operating system, such as Windows CE,which is not the case.
(Fortunately, the group that holds that belief seems to be shrinking.) The first generation
of Tablet PCs (pre-Windows Vista) runs on a special version of Windows XP, called the
Windows XP Tablet PC Edition. This is a super-set of Windows XP, which means that
absolutely everything Windows XP has to offer is also available on Tablet PCs.
8
3. Working:
The Tablet PC is a fully functional personal computer powered by Microsoft
Windows and designed for ink-enabled, pen-enabled, and speech-enabled applications.
The combination of software and hardware in a Tablet PC enables these methods of user
interaction creating a rich, interactive, and productive computing experience for users.
The Tablet PC platform enables input and output of handwriting and speech data
on a Tablet PC as well as interchange of this data with other computers. The Tablet PC
platform components installed by the Windows 7 SDK enable you to build ink-enabled
and pen-enabled applications for the Tablet PC.
9
The tablet pc consists of three layers cover and protective glass, which protects
the LDC display and pc from external damage. The LCD display which is mounted under
the protective glass. The Sensor Board which is under the LCD panel plays a major role
in tablet pc, the sensor board is a touch screen which helps the user to operate the pc
directly on to the screen.
The PC processor and software are central to correctly interpreting input from the
touch-screen. The capacitive material sends raw touch-location data to the processor. The
processor uses software located in the memory to interpret the raw data as commands and
gestures. Here's what happens:
1. Signals travel from the touch screen to the processor as electrical impulses.
2. The processor uses software to analyze the data and determine the features of each
touch. This includes size, shape and location of the affected area on the screen. If
necessary, the processor arranges touches with similar features into groups. If we
move your finger, the processor calculates the difference between the starting point
and ending point of your touch.
3. The processor uses its gesture-interpretation software to determine which gesture we
made. It combines our physical movement with information about which application
we were using and what the application was doing when you touched the screen.
The processor relays our instructions to the program in use. If necessary, it also
sends commands to the screen and other hardware. If the raw data doesn't match any
applicable gestures or commands, the pc disregards it as an extraneous touch.
10
When the screen is tapped or touched the screen registers gets active and captures
the raw data on the sensor board, then the background noise is removed and pressure
points are measured and the touch areas are established and the exact coordinates are
calculated.
When touched the processor detects the size, shape and location of the touch on
the sensor board. If it is a multiple match it grouping is performed.
If the touch is in the form of motion it performs the movement operation. The
application or the gesture software is performed, which is selected by the operator.
11
All these steps happen in an instant -- we see changes in the screen based on our
input almost instantly. This process allows us to access and use all of the applications
with our fingers.
[attachment=19336]
ACKNOWLEDGEMENT
I extend my sincere thanks to, Head of the Department for
providing me with the guidance and facilities for the Seminar.
I express my sincere gratitude to Seminar coordinator,
Staff in charge, for their cooperation and guidance for preparing and presenting this
seminar.
I also extend my sincere thanks to all other faculty members of Electronics
and Communication Department and my friends for their support and encouragement.
2
1. Abstract:
A Tablet PC is a notebook- or slate-shaped mobile computer. Its touchscreen or
digitizing tablet technology allows the user to operate the computer with a stylus or
digital pen instead of a keyboard or mouse.
The form factor presents an alternate method of interacting with a computer, the
main intent being to increase mobility and productivity. Tablet PCs are often used in
places where normal notebooks are impractical or unwieldy, or do not provide the needed
functionality.
The Tablet PC is a culmination of advances in miniaturization of notebook
hardware and improvements in integrated digitizers as methods of input. A digitizer is
typically integrated with the screen, and correlates physical touch or digital pen
interaction on the screen with the virtual information portrayed on it. A tablet's digitizer
is an absolute pointing device rather than a relative pointing device like a mouse or
touchpad. A target can be virtually interacted with directly at the point it appears on the
screen.
In general terms, Tablet PC refers to a slate-shaped mobile computer device,
equipped with a touchscreen or stylus.
2. Introduction:
A Tablet PC is a PC that has a touch screen. Most of the Tablet PCs will not have
built-in keyboards however users will be able to plug in keyboards if they want to. The
main method of input is handwriting recognition similar to Transcriber on the Pocket
PC. Also, the Tablet PC is unique in it's support for ink notes as well.
In general terms, tablet PC refers to a slate or tablet shaped mobile computer device,
equipped with a touch screen.
The term Tablet PC was made popular in a product announced in 2001
by Microsoft, and defined by Microsoft to be a pen-enabled computer conforming to
hardware specifications devised by Microsoft and running "Windows XP Tablet PC
Edition" operating system.
The Tablet PC is not only perfect for project-based application users that require
the power of inking or easy pen-driven navigation, but also for mobile professionals who
must have a keyboard and integrated media drive all included in one unit. Taking
advantage of the industry-first bi-directional swivel hinge, you can easily transform this
standard notebook into a tablet configuration by rotating (in either direction) and folding
the screen. Collect data efficiently and accurately using the stylus to make handwritten
notes and drawings with digital ink. To enter data using the keyboard, tilt up and rotate
the screen (follow the arrow indicator) to a notebook configuration. The stylus and active
digitizer continue to work in the notebook configuration.
The evolution of the tablet PC is similar to that of the laptop computer, the
netbook, and the smartphone: Companies aren't so much selling us a better computer as
they are selling us new ways to use computers.
6
However, consumers want something more portable than a laptop, more powerful
than a netbook, and more comfortable than a smartphone--and a new tablet PC could very
well fill all of those needs, in many different ways. People who love their e-readers but
want something a little more versatile would likely love the Adam by Notion Ink, for
example, while fans of touchscreen smartphones should pay close attention to Dell's
concept Android tablet, which could offer similar Internet functions with a much more
comfortable user experience.
Tablet PC is a portable computer having low weight (max 1.5 kg) and
consumption. Its dimensions range between a PDA and a classical NTB (usually from 9"
to 14"). It is controlled by touch screen and a special pen. Tablet PC runs on classical
operating systems containing support for Tablet PCs or on systems specifically developed
for Tablet PCs, e.g. Windows Tablet PC. You can take handwritten notes directly on the
screen and convert them to digital text or to save them for later viewing or processing in
other applications. You can also use classical keyboard or a mouse with your Tablet PC,
but they can be fully replaced by the touch screen or voice control. Two basic types of
Tablet PCs are: Slate providing full mobility without the need of using a mouse and
keyboard, or Convertible with integrated keyboard and removable touch screen (usually
with a pivot screen) = looks much like a conventional notebook.
A tablet PC is a truly portable computing tool. It is as powerful as a modern PC,
but it doesn't require a keyboard. Instead, using "digital ink" technology, you can add
information by writing on the screen (or "tablet") with a digital pen or "stylus," much like
you do in a patient's paper chart. There are two main types of tablet PCs: a slate tablet
PC, which is a tablet with no attached keyboard (though one can be added), and a
convertible tablet PC, which is basically a laptop computer with a screen that can swivel
and fold onto the keyboard to create the tablet.
7
Tablet PCs are regular PCs. Some developers and users still think that Tablet PCs
somehow run on a special operating system, such as Windows CE,which is not the case.
(Fortunately, the group that holds that belief seems to be shrinking.) The first generation
of Tablet PCs (pre-Windows Vista) runs on a special version of Windows XP, called the
Windows XP Tablet PC Edition. This is a super-set of Windows XP, which means that
absolutely everything Windows XP has to offer is also available on Tablet PCs.
8
3. Working:
The Tablet PC is a fully functional personal computer powered by Microsoft
Windows and designed for ink-enabled, pen-enabled, and speech-enabled applications.
The combination of software and hardware in a Tablet PC enables these methods of user
interaction creating a rich, interactive, and productive computing experience for users.
The Tablet PC platform enables input and output of handwriting and speech data
on a Tablet PC as well as interchange of this data with other computers. The Tablet PC
platform components installed by the Windows 7 SDK enable you to build ink-enabled
and pen-enabled applications for the Tablet PC.
9
The tablet pc consists of three layers cover and protective glass, which protects
the LDC display and pc from external damage. The LCD display which is mounted under
the protective glass. The Sensor Board which is under the LCD panel plays a major role
in tablet pc, the sensor board is a touch screen which helps the user to operate the pc
directly on to the screen.
The PC processor and software are central to correctly interpreting input from the
touch-screen. The capacitive material sends raw touch-location data to the processor. The
processor uses software located in the memory to interpret the raw data as commands and
gestures. Here's what happens:
1. Signals travel from the touch screen to the processor as electrical impulses.
2. The processor uses software to analyze the data and determine the features of each
touch. This includes size, shape and location of the affected area on the screen. If
necessary, the processor arranges touches with similar features into groups. If we
move your finger, the processor calculates the difference between the starting point
and ending point of your touch.
3. The processor uses its gesture-interpretation software to determine which gesture we
made. It combines our physical movement with information about which application
we were using and what the application was doing when you touched the screen.
The processor relays our instructions to the program in use. If necessary, it also
sends commands to the screen and other hardware. If the raw data doesn't match any
applicable gestures or commands, the pc disregards it as an extraneous touch.
10
When the screen is tapped or touched the screen registers gets active and captures
the raw data on the sensor board, then the background noise is removed and pressure
points are measured and the touch areas are established and the exact coordinates are
calculated.
When touched the processor detects the size, shape and location of the touch on
the sensor board. If it is a multiple match it grouping is performed.
If the touch is in the form of motion it performs the movement operation. The
application or the gesture software is performed, which is selected by the operator.
11
All these steps happen in an instant -- we see changes in the screen based on our
input almost instantly. This process allows us to access and use all of the applications
with our fingers.