Stock and Options
Most stock and options traders run thinkorswim or TradeStation with a scanner and a handful of charts. One platform part-time fits the Viper X14; two platforms on four screens fits the Viper Ultra.
Computers for Stock and Options Traders

The 45,000 Rule: Why Your Trading Computer Is Costing You Real Money
3 Trading Computer Tiers and Who Needs the Top Machine
4 Trading Platforms Ranked by How Hard They Hit Your Computer
Day Trading on a Laptop - What It Actually Takes