Psion Revo Plus
The Psion Revo, launched in 1999, is a PDA (Personal Digital Assistant) from Psion. It is the light version of Psion 5mx. It is software-compatible with the 5mx and has the same processor but is more lightweight (200g vs 354g of 5mx), and substantially smaller (157x79x17mm). In comparison with the Series 5/5mx, the Revo has a smaller screen (480x160 vs 640x240 of Series 5/5mx) and also lacks a flash-card slot and a backlight.
The Psion Revo comes in two main variants, Psion Revo and Psion Revo Plus having 8 and 16MB of RAM respectively. It is powered by a 36 MHz ARM 710T microprocessor. Among other things, the hardware is equipped with a short-distance irDA wireless infrared communication system and a touchscreen. Like its bigger counterpart Series 5mx, it comes with a small suite of office and communications programs built into the ROM chips. Other programs are user-installable by using a 'dock' to send Revo programs from a PC.
This unit is the REVO PLUS and its casing instead of the familiar dark blue the new casing is gray. In addition, where the Revo's name was proudly displayed on the original Revo, it now says REVO PLUS
The Revo Plus features 16 MB built-in instead of the 8 MB that the original Revo shipped with. In addition, the motherboard of the Revo Plus has been redesigned to accommodate the new memory chip. It has the ARM 710 running at 36 MHz and the Revo Plus uses two rechargeable batteries. The most notable difference from the Revo apart from the extra memory is the addition of some Web browsing software, for both standard Web pages in the form of the highly respected Opera Web browser and WAP (wireless application protocol) pages, more commonly associated with the new breed of mobile phones.
A green LED confirms that the Revo is properly docked and a red LED indicates that the battery is fast charging. The battery charges to 85 percent capacity in just 1.5 hours and fully charges in four hours, and the battery lasts about 12 hours.
The Revo Plus is based along the same lines as earlier Psion models, but with considerable cosmetic and technical improvements. You operate this organiser with the 14 touch-sensitive buttons that border its screen or by using the stylus to tap onscreen buttons and menus. Psion has made every effort to keep the operational controls above the keyboard, thus maximizing the space available for keys.
Standard memory: 16 MB RAM
Display type: LCD
Display colors: 16-level grayscale
Display: 480 x 160 pixel mono display
Keyboard: 53-key QWERTY keyboard
Processor: 36MHz ARM 710
Operating system: EPOC
Battery type: 2 built-in rechargeable 700 mAh AAA NiMH
Weight: 7.1 ounces
First released: September 2000 in Europe
Our unit was very kindly donated by Christine Arrowsmith