You didn't need any major processing power to run Encarta, I had Encarta '95 back in the day and this was during the period in the mid 1990s where your computer clock/processor speed was doing well to get into three figures. By the end of the decade those began to rise to grant a semi decent level of performance.
Encarta 95 said it would run with these specs (bearing in mind this was 1994):
The minimum system requirements to run Encarta 95 are:
- A Multimedia PC or compatible with a 386SX or higher processor.
- MS-DOS version 3.1 or later.
- Microsoft Windows version 3.1 or later.
- Double-speed (2x) or better CD-ROM drive.
- 4 MB of RAM.
- 3.5 MB of hard disk space.
- SVGA 256-color monitor.
- A Windows-compatible sound board.
- Speakers or headphones.
- Microsoft Mouse or compatible pointing device.
Tiny Computers went bust in 2002, the were bought by Time who kept the name going until I think 2006 and then the parent company went into administration and that was the end of Time and Tiny.