(AP) –- The Associated Press has released a summary of earnings reports for selected technology companies for the first quarter and what they reveal about the state of corporate spending:

April 13: Intel Corp. says net income nearly quadrupled revenue up 44 percent. Intel says corporations are upgrading their employees' computers and buying more servers.

April 15: Advanced Micro Devices Inc. shows a 34 percent increase in revenue and says spending on servers is "pretty healthy." The microprocessor maker's CEO says he is less certain about corporate spending on personal computers.

Google Inc. says revenue surged 23 percent, its best rate since the summer of 2008. Prices paid for Google's ads were 7 percent higher than the average rate at the same time last year.

Monday: IBM Corp. reports net income gain of 13 percent, revenue up 5 percent. Revenue would have been flat without currency fluctuations but company predicts revenue will rise even without such adjustments in the current quarter.

Tuesday: Yahoo Inc. reports first revenue growth in 18 months. Although total ad revenue increased just 3 percent, display advertising rose 20 percent. That category includes online billboards that companies use to promote brands.

Wednesday: EMC Corp. reports net income up 92 percent and revenue up 23 percent. Company questions whether unusual spike in information-technology spending has already ended.

Thursday: Microsoft Corp. says net income in the last quarter rose 35 percent. It credits strong sales of the newly released Windows 7. But although businesses have been spending more on new computers and some software, Microsoft says revenue for the group that makes server software rose only 2 percent.

Friday: Xerox Corp. says it lost money because of acquisition charges but says revenue from services and printer and copier supplies rose as corporate spending picked up.

Copyright 2010 The Associated Press.