Sources close to Unisys said last week that the company is in discussions with Compaq to sell its systems integration and services unit to the PC maker.
But Compaq moved swiftly to quell the speculation, saying "Compaq does not comment on rumours" - the same formula it employed when it was reported to be trying to buy Gateway 2000 earlier this year, a move it later confirmed.
A Unisys representative would not confirm the companies were in talks.
For the past year, Compaq has sought to add a services arm to its business.
Towards the end of last year, it was rumoured to be in talks with Digital and this year bought Tandem, which has some services operations.
However, although still cash liquid, buying a major element of Unisys may be too much for Compaq shareholders.
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