To celebrate the 50th anniversary of the BASIC programming language, Apple co-founder Steve Wozniak has recounted how he wrote BASIC for the Apple I from scratch. His primary motivation was gaming, which he felt could spark a mainstream interest in home computers. follow link
Data Tables in Microsoft Excel 2008
Data Tables let you see how the results of a formula change as its underlying variables change. After entering data, select the entire table and choose Data > Table. Then tell Excel which row input cell and column input cells you want the table to use. Finally, click OK. Excel will crunch the numbers and present a new Data Table.
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Steve Wozniak on How He Wrote BASIC for the Apple I