Comparing Fujitsu Poqet PC Plus Computers
Some time ago, I wrote a program to solve a board puzzle. It uses brute force recursion to solve the puzzle. Recursion is very CPU and memory intensive. I thought this program would make a good test. I executed the program with both machines and timed how long it took each of them to solve the puzzle.
The results were surprising. Not only was my second PC Plus faster but it was significantly faster! Try 62% faster! See the table below. I also include timing results from an Pentium laptop computer for laughs. Two timing runs were made for each machine.
620 / 381 = 1.62, so PC Plus #2 is 62% faster than PC Plus #1 in this test. It is interesting to note the serial number of #2 is greater than the serial number of #1. So we can assume that #2 is the newer machine. The difference between the serial numbers is a little over 700 (units) so one can also assume improvements were constantly being made as these machines were in production.
I wonder just how many of these machines were made? Perhaps we should compare serial numbers and settle on the largest serial number! It seems the last four digits of the serial number is the true production/unit number. The PC Plus serial number is formatted as:
02010000NNNNwhere 0201 is the model number and NNNN is the production/unit number.
Please email me the following information on your PC Plus:
As a further incentive, I will release my results only to the participants of my little survey. Perhaps I'll add a little software utility too. I will compile a list of machines, production dates, revision codes and timing results. Of course, I shall preserve everyone's anonymity. The more data points, the better.
I think the conclusions drawn from this information will be interesting. In the meantime, below are the smallest and largest unit numbers of the PC Plus machines their owners have emailed to me (and presumably still running).
So the next time you get together with other fellow PC Plus owners, try racing your machines and see which is the fastest! And don't forget to compare serial numbers!
|Fujitsu Poqet PC Plus Review|