Abstract: A method, system and program for controlling access to computer memory are provided. The present invention comprises receiving a work request from a user, wherein the work request comprises an index portion and a protection portion. The index portion of the work request is used to locate an element in an address translation and protection table. The protection portion of the work request is then compared with a protection key in the table element, and access to memory is granted only if the protection portion and protection key match.

Abstract: A user sets preference parameters that filter web page contents from being stored in the cache. The preferences relate to the web page's contents and attributes. Before caching the web page, the contents and attributes of the web page are filtered solely as a function of the web browser. Cache filters take a variety of forms, such as ratings filters, web page identifier filters, and key word filters, which scan accessed contents of a web page for user selected terms. The filtered web page is then blocked from entry in the browser's cache based on the filtering process. Conversely, a user sets preference parameters that filter web page contents to override the block from cache preferences. The browser responds by storing the filtered web pages that were previously designated as web pages not to be cached.