Software maker Adobe Systems has scored a big victory. Under a tentative agreement with Apple Computer, Adobe's programs for controlling typefaces on computer screens will be included in all new Macintosh models.

Apple used to be Adobe's largest shareholder and its biggest customer, but the computer maker decided in 1989 to sell its holdings and work on its own software with Microsoft. When Microsoft backed off on some plans, and rivals such as Lotus Development came out in support of Adobe's technology, Apple had little choice but to reverse field.

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