The designation Tablet PC (English tablet "“tray"”) designates a PC, whose design reminds of a tray. The user is to be able to transact thereby inputs by pin or fingers on the diagram-tray-similar screen, which is to promote more natural handling computers.

For example the T100X-Dynapad von Toshiba represents an early going attempt of the pin input technology from the year 1993; it was equipped with a touch-sensitive gray tone LCD and ran under MS-DOS 6,2 & Windows 3,1 with Microsoft Pen services for Windows.

In the meantime the term "“Tablet PC"” is described more exactly by the standard for pin-served Notebooks, defined by Microsoft: Tablet PC can be served by letters with the pin on the screen, whereby an inductive Digitizer seizes the pin movement; contrary to the Touchscreen the screen is contact insensitive. As operating system an adapted version of Windows XP is usually used, the Windows XP Tablet PC edition 2005. There are however quite efforts Tablet PC under Linux to supporting. The company Lycoris for example offers an accordingly adapted Linux version. With some pins it is possible in addition to measure the strength of the pressure during the writing suitable applications can this consider. This characteristic is not compellingly prescribed by the standard however.

At present there are two different concepts of Tablet PC: Convertible and Slate.

Kinds of Tablet PC

By a Convertible one understands a Tablet PC, which has usually same functionality as a Notebook (in particular thus also a keyboard has). Additional it is to be turned possible the display around 180"° and be folded upward afterwards with the screen on the keyboard, so that afterwards the pin input is possible. Thus this design unites the advantages of Tablet PC and conventional Notebooks. The "“normal"” weight and the "“normal"” height of the Notebooks have an unfavorable effect, which make more difficult durable using in standing. Nevertheless Convertibles are more common, because much user and the habit of an inserted keyboard estimate security.

By a Slate one understands a Tablet PC, which can be served only by the pin as well as the function key attached at the housing and is limited to the substantial. The "“interior life"” (like motherboard, CCU, etc.) is, built contrary to the Notebook, not in the keyboard, but directly in the display. The Tablet PC can be extended by a Docking station by a keyboard and additional drive assemblies. By the compact and thus weight-reduced design of these devices they are very mobile, since they make also longer working possible in standing. Has an unfavorable effect the absence according to standard of drive assemblies and a keyboard in the mobile enterprise, for some devices is however optionally special keyboards available (e.g. for sticking on, via Bluetooth or infrared).

Genuine mobility

The Tablet PC is the first really mobile computer, which is fulfilled all requirements of a common Desktop PC and used even in the larger style. Contrary to Notebooks it can be carried also when standing and going and served comfortably.

A similar beginning already already existed to years before this concept under Windows 3,1. However the appropriate devices were not very common.

Electronic ink

The idea (Windows XP) of the Tablet PC was to give to the user with the pin on the screen the feeling he with pin and paper would work. But the system calculates by pin-purely on the screen the B%C3%A9zierkurven, which represent the writing mathematically. Depending upon pin and ability of the display also pressure and pin inclination are evaluated. Subsequently, the curves are shown gerendert the display. Thus the feeling, one develops on the screen would draw.

In order to be able, become to use this kind of the input special applications needs. In the Tablet PC edition of Windows XP participates the program Microsoft journal, which letter and drawing make as on a normal block paper possible. Starting from Microsoft Office XP also a free manual input is in individual applications possible by an extension luggage, whereby e.g. in Microsoft Word an extra free hand object is provided. Most vector-based indication programs support as standard equipment pin input.

Also programs otherwise only over keyboard entries to be served can use, can one with the pin. For this there is a handwriting input window, which is if necessary faded in. There the words written by the user are recognized into real time and handed over afterwards to waiting application.

The input pin

There are 2 kinds of Digitizern/pins:

• with battery, the pin can differentiate 64 compression phases, the local dissolution of the pin on displays is relatively small
• without battery, the pin knows more than 64 compression phases (current standard: 254 stages) differentiate between, the display are highly soluble

The technical recognition of the input takes place thereby as with diagram trays. This goes so far that with numerous current Tablet PC the recognition technology of Wacom, a specialist for diagram trays comes.

Swivelling screen display

The screen representation of a Tablet PC can be turned at any time around 90"°. Thus it is to be worked possible in the portrait format, how this is usual with memo pads.

Announce on push of a button

Windows XP normally needs the combination of keys Strg alto distance for announcing to the system. In order to make possible also without keyboard registrations, a Tablet offers to PC a special key for it.

A Tablet PC must fulfill the following requirements:

• electromagnetic Digitizer (pin) (since 2006 also Touchscreens are certified)
• Kind of snapping from the Standby mode
• swivelling display for high and landscape format
• Legacy Free Design (no serial or parallel interface)
• Button for Strg alto distance function to the safe Windows XP-registration

Special software

Microsoft takes a Voreiterrolle with the Windows XP Tablet PC edition (current version 2005). This software offers which is based note program Windows journal and in the meantime very flexible Tablet PC input area also some extensions to vector diagram beside that. Some of it still a toy character, others have as for instance Ink kind than indication tool and the Snipping Tool (both part of the free Microsoft Experience/Education luggage) for cutting out Screenshots are useful in the everyday life.

The company EverNote offers in the form of a ritePen alternative to Microsoft the Tablet PC input area. With this program the handwritten text input on the complete screen is possible.

The concept of the Tablet PC is not perfectly into the software converted yet, then Tablet PC have as standard equipment still no special support for the input of mathematical contents, so that these are only stored as vector diagrams. This was only made possible for the company XThink with the product MathJournal.

The software SignSecure of the company SOFT PRO replaces the input of user names and password by keyboard, which makes sense, if its Tabelt PC does not have a finger print reader. The user can announce itself simply on the basis his signature at his Windows system. Functions already astonishing well. The software MaxiVista makes the use of a Tablet for PC possible as extended monitor of a Desktop computer, which would not be possible without the software, since Tablet PC exhibit usually no VGA entrance.

For users in office environments many very practice-oriented recommendations in the book "“Seize the Workday"” are from Michael Linenberger. It leads applications date and task planning, E-Mail with pin and keyboard, presentations with the Tablet PC, writing in an conversion-oriented write style into Meetings, Mindmapping and documents with the pin (Pen) revises forwards. It examined thereby often several available software packages and compares these.

The Microsoft Office package offers starting from version 2003 quite good support for Tablet PC and offers in particular particularly for Tablet PC developed program Microsoft OneNote, with which discussions are held by electronic ink and afterwards to be simply scanned to be able. In Microsoft Word 2003 and Microsoft Powerpoint can be inserted handwritten notes directly. Even enamels can be written with Microsoft Outlook handwritten - the receiver receives a picture with the writing.

Also special Plug into for Microsoft Office can increase the productivity on the Tablet PC. Examples for this are "“Tablet Enhancements for Outlook TEO"” and "“InkGestures for Word"”.

A good side to the overview of special software for the Tablet PC is the "“Tablet PC post office"”.

Gestures

Gestures, that are movements with the pin, which release certain actions, are ideally suitable for the work with the Tablet PC. Some programs inserted that, offer a general and intelligently programmable solution for the application with the mouse for Desktop PC's "“StrokeIt"”. Try out simply.

Articles in category "Tablet PC"

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