Tesco is to launch a range of budget own-brand PC software, in a move that will pitch the grocery giant against the likes of Microsoft and Symantec.
Tesco said it would offer six packages, including office software, security systems and a photo editing tool.
Britain's biggest retailer said each title would cost less than Â£20, challenging what it described as the current "high" price of PC software.
Tesco has been pushing aggressively into the market for non-food goods.
In August, the firm announced it was launching a new home shopping service for a range of 8,000 items including sofas, bikes, golf clubs and cameras - taking the supermarket into direct competition with retailers such as Argos.
Analysts expect Tesco to announce half-year profits later this week of more than Â£1bn.