PalmPilot

The PalmPilot Personal and PalmPilot Professional are the second generation of Palm PDA devices produced by Palm Inc (then a subsidiary of U.S. Robotics). These devices were launched on March 10, 1997.
This generation of devices uses the Motorola 68328 processor at 16 MHz, and has 512 KB (Personal) or 1024 KB (Professional) built in memory.
This PDA has a plastic casing which is 4.7 x 3.1 x .7 inches and weighs 5.6 ounces (160 g). On the front of the device there is a 160x160 pixel monochrome touchscreen LCD, with a Graffiti input zone below it. Under this there is a green button for power and backlight control, four application buttons (Date Book, Address Book, To Do List, and Memo Pad) and two scroll buttons. On the left side of the device there is a contrast control, and on the top right side of the device, there is a stylus slot. On the back, there is a memory slot door, reset button, battery door (two Alkaline AAA batteries needed) and serial port (for use with the PalmPilot Cradle).
The memory is located in a memory slot under a plastic cover on the back of the PDA near the top. A 512 KB ROM chip contains the Palm OS 2.0 operating system and resident applications. The RAM is available in 512 KB, 1 MB or 2 MB sizes. The hardware limit is 12 MB of RAM and 4 MB of ROM.