EMC Corp. has reached a deal to buy Isilon Systems Inc. for $2.25 billion in cash, the latest in a recent spree of acquisitions in the tech sector as companies look to broaden the types of software and equipment they offer big corporate customers and government agencies.
Here is a look at some of the acquisitions over the past several months.
July 1: Hewlett-Packard Co. completes its $1.2 billion acquisition of smart phone maker Palm Inc.
July 8: Dell Inc. agrees to buy Scalent, a privately held maker of software for managing data-center infrastructure, for an undisclosed amount.
July 16: Cisco Systems Inc. buys privately held CoreOptics Inc., which makes technology for helping Internet service providers handle the growing traffic on their networks, for $99 million.
July 19: Dell announces it will buy privately held Ocarina Networks, which makes technology to compress data and remove duplicate information, for an undisclosed amount.
July 20: IBM Corp. buys BigFix Inc., a privately held business security and compliance software company, for an undisclosed amount.
Aug. 2: IBM buys privately held Web analytics software company Coremetrics for an undisclosed amount.
Aug. 10: IBM buys privately held business management software company Datacap Inc. for an undisclosed amount.
Aug. 13: IBM agrees to buy marketing software company Unica Corp. for $480 million.
Aug. 16: Intel Corp. agrees to buy the cable modem chip-making business from Texas Instruments Inc. for an undisclosed amount.
Aug. 17: HP agrees to buy privately held computer-security software maker Fortify Software Inc. for an undisclosed amount.
Aug. 19: Intel Corp. agrees to buy computer-security software maker McAfee Inc. for $7.68 billion.
Aug. 26: HP buys privately held database and application automation company Stratavia Inc. for an undisclosed amount.
Aug. 27: IBM buys Sterling Commerce, which makes software that helps businesses buy and sell to each other, from AT&T Inc. for $1.4 billion.
Sept. 2: Intel Corp. agrees to buy the wireless-chip division of Germany's Infineon Technologies AG for $1.4 billion.
Sept. 2: HP agrees to buy data-storage maker 3Par Inc. for $2.07 billion, ending a bidding contest with rival Dell.
Sept. 13: HP agrees to buy security-software provider ArcSight Inc. for about $1.5 billion.
Sept. 15: IBM says it has acquired OpenPages, a privately held software company that develops risk and compliance management systems, for undisclosed terms.
Sept. 20: IBM agrees to pay $1.7 billion for Netezza Corp., a company that helps businesses sort through data on corporate servers.
Sept. 27: IBM agrees to buy privately held Blade Network Technologies, a maker of software and technologies that route data to and from servers. Financial terms were not disclosed.
Nov. 2: Dell agrees to buy Boomi, whose AtomSphere software makes it easy for businesses to send data back and forth between Web-based applications and computer programs that run on PCs. Terms were not disclosed.
Nov. 3: Oracle Corp. agrees to buy e-commerce software maker Art Technology Group Inc. for $1 billion, to help businesses better understand people who shop with them online.
Nov. 15: EMC says it has reached a deal to buy Isilon Systems Inc. for $2.25 billion in cash to give EMC customers options for storing large amounts of data.
