Are you thinking of buying a new computer because your IBM PC or compatible is too slow - and are you also finding it difficult to justify a $3,000 expense just for an increase in processing speed?

For those scientists looking for extra speed, but not ready to invest in a new machine, a very practical alternative exists: Add-on cards are available that will speed up any IBM PC or compatible so that it runs even faster than an IBM AT. Commonly called "accelerator cards" or "speedup boards," they can really perk up a slow computer.

Pharmacia LKB Biotechnology Inc., of Piscataway, N.J., has introduced a new version of its PC-based DNA analysis software. Version 3.0 of DNASIS boasts more than 25 separate programs to collect, analyze, and present nucleic acid sequences. New functions in the upgrade include faster homology searches, automatic entry of fragment migration distances from a sonic...

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