计算机专业英语电子教案郭敏 计算机专业英语Unit3.ppt

Unit 3 Section 2 Passage A OS software application program resource error batch processing real-time multi-tasking multi-user distributed time sharing desktop Unit 3 Section 2 Passage B GPL developer function bug SCSI private Graphical User Interface command line mouse navigate drop-down menu dialog box button tab icon Windows Mobile license copy variant Unit 3 Section 2 Passage B 1. Price The majority of Linux variants are available for free or at a much lower price than Microsoft Windows, while Microsoft Windows can run between $50.00 - $150.00 US dollars per each license copy. 2. Ease Although the majority of Linux variants have improved dramatically in ease of use, Windows is still much easier to use for beginners. Microsoft has made several advancements and changes that have made it much easier to use, and although arguably it may not be the easiest operating system, it is still easier than Linux. 3. Reliability Most Linux variants and versions are notoriously reliable and can often run for months and years without needing to be rebooted. Although Microsoft Windows has made great improvements in reliability over the last few versions of Windows, it still cannot match the reliability of Linux. Unit 3 Section 2 Passage B 4. Software Linux has a large variety of available software programs, utilities, and games. However, Windows has a much larger selection of available software because of the large amount of Microsoft Windows users. 5. Software Cost Many of the available software programs, utilities, and games available on Linux are freeware and/or open source. Even such complex programs such as Gimp, OpenOffice, StarOffice, and Wine are available for free or at a low cost. In contrast, although Windows does have software programs, utilities, and games for free, the majority of the programs will cost anywhere between $20.00 - $200.00+ US dollars per copy. Unit 3 Section 2 Passage B 6. Hardware This is where Windows shows great advantages. Although Linux