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The announcement follows the collapse of last year's deal with IT supplier RM that left the province's IT education initiative in disarray.
In January 2001, after 18 months of negotiations, RM pulled out of a £300m, 10-year contract to provide ICT to all of Northern Ireland's 1,227 schools.
Following the failure, the Northern Ireland Classroom 2000 Project was divided into five lots, with Viglen winning Lot 1 to provide equipment for small primary schools.
Viglen, a subsidiary of Learning Technology, will supply hardware and services to 574 schools, and 20 training and support centres.
Viglen will deliver 5,200 workstations and 600 servers, working in partnership on a year-long roll-out with Northern Ireland's local service provider, Sx3.
The company will also provide ClassLink 2000, the latest network administration and teaching software solution built on Microsoft Windows 2000 technology.
Jimmy Stewart, project director for Classroom 2000, said: "We awarded the contract to Viglen as we knew that they would be able to act as a one-stop shop, providing us with a full cost-effective and flexible solution.
"We were confident that they could take over the management, support, maintenance, development and other issues associated with the technology."