Either method lets the user write on the screen easily, using a virtual keyboard or handwriting-recognition application for occasional character entry.

The high-end model features the 1.2 GHz Intel Pentium M 753 Ultra Low Voltage processor (1.20 GHz, 2 MB L2 cache, 400 MHz FSB), 60 GB hard drive, 512 MB (333 MHz) of installed RAM (2 GB max), 54g Wi-Fi connectivity (802.11b/g), Bluetooth wireless connectivity, Secure Digital memory card slot, and the Windows XP Tablet PC Edition operating system.

The TC1100 allows for easy access to its memory, hard drive, and wireless card through screw-on covers on the rear of the screen unit.

The tablet offers very substantial connectivity, with a VGA port, 10/100 Mbit Ethernet provided by a Broadcom controller, a modem, 2 USB 2.0 ports—one is compatible with the proprietary external bay CD/DVD drives—an audio input and output, a special 2.5 mm headset jack, PC-MCIA card expansion slot and SD card slot—provided by a Texas Instruments controller, and an IrDA port next to the charging connector, which can be used to transfer files to other computers.

Customizable controls include 3 physical buttons along the side of the unit, a "jog dial" assembly on the same edge, and 3 stylus-sensitive spots in the bezel of the display.

SD or CF card, where it installs a special OS based on BSD, made by HP and Phoenix, which allows the user to quickly view their latest mails, appointments and contacts.