Archive for the ‘computer tablets’ Category

Computer Tablets

January 12, 2011 Leave a comment

A Computer Tablets PC is a notebook or slate-shaped mobile computer, first introduced by Pen Computing in the early 90s with their Pengo tablet computers and popularized by Microsoft. Its touch-sensitive screen or graphics tablet / screen hybrid technology allows the user to run computer with a stylus or digital pen or fingertip instead of a keyboard or mouse.

The form factor offers a more mobile way to interact with a computer. Tablet PCs are often used where normal notebooks are impractical or unwieldy, or do not provide the required functionality.


Slate, schist similar letter are tablet PC without a dedicated keyboard. Keyboards can be installed over a wireless or USB connection normally.

This tablet PC typically contain small (8.4-14.1 inches/21-36 cm) LCD screens and have for quite some time been popular within vertical markets such as health care training and practical work.

Slate models are often designed with a focus on pure mobility, that is, less to wear to, the better.

Rugged tablet PC models are usually in the slate form factor, without a keyboard, there are few moving parts to break.

Thin-client slates

Thin-client slates consist of a touch-sensitive screen and wireless connection from an integrated device. These units by design have processing power, which mainly is involved in input / output data processing such as video display, network communications, audio encoding / decoding, and input fuse limits (screen input, Strichkodemesswert, magnetic stripe reading (credit card shock). The unit transmits data via a secured wireless connection to a remote server for processing.

Thin-client slates have the design advantages of a very compact form factor, more secure data (no data storage on the slate computer), long battery life (no processor to power). Panasonic Toughbook 08 is representative of the application of thin-client tablet PC reckoning.


Convertible notebooks have a low body with an attached keyboard. They resemble precisely modern notebooks / laptops, and are generally heavier and larger than slates.

Usually the bottom of the fixing of a convertible for display on a single connection called a  rotating hinge. The compound causes the screen to rotate 180 degrees and folds down to the keyboard in order to provide a flat writing surface available. This design, although the most common causes a physical point of weakness on the notebook.

Some manufacturers have tried to overcome these weak points. Panasonic Toughbook 19 e.g. is advertised as a more durable convertible notebook. A model by Acer has a sliding design where the screen slides up of slate-like position and locks into place to provide the laptop mode.

Convertibles are by far the most popular form factor tablet PC, because for people who are unsure about the practicality of using the spring as the primary method of input, the convertibles still the keyboard and operating the pointing device of traditional notebooks as a backup plan.


Hybrids, characterized by users of HP / Compaq TC1000 and TC1100, the rows (depicted right), share the characteristics of the slate and convertible by using a detachable keyboard which operates in a similar fashion to a convertible when it is attached.

This is not to be confused with slate models that detachable keyboard-detachable keyboards for pure slate models do not turn around to let him rest the tablet on a convertible may have.

Despite a loyal following of users, the hybrid form factor has not received any new updates after the TC1100 was discontinued.