By Alexei Oreskovic SAN FRANCISCO (Reuters) – Google Inc slashed its cloud computing service prices on Tuesday, seeking to wrest customers from Amazon.com Inc and Microsoft Corp in the fast-growing market of renting computers and data storage to companies. Googles Cloud Storage will cost 2.6 cents per gigabyte, about 68 percent lower for most customers. Googles Compute Engine services will cost 32 percent less across all sizes, regions and classes. The cost of virtualized hardware should fall in line with the cost of the underlying real hardware, Google Senior Vice President Urs Holzle said in a post on Googles official developers blog on Tuesday in conjunction with a cloud event that the company hosted in San Francisco.