冯·诺依曼（VonNeumann）在总结ENIAC的研制过程和制订EDVAC计算机方案时，提出两点改进意见，它们是（ ）。
A、采用ASCII编码集和指令系统
B、引入CPU和内存储器的概念
C、机器语言和十六进制
D、采用二进制和存储程序控制的概念
相关试题
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微型计算机存储系统中，PROM是（ ）。
A、可读/写存储器
B、动态随机存储器
C、只读存储器
D、可编程只读存储器
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Microsoft's COM is a software（1）that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components,a way for components to dynarmically discover the interfaces implemented by other components, and amechanism to identify components and their interfaces uniquely. OLE is a compound（2）standard developed by Microsoft. OLE makes it possible to create（3）with one application and link or embed them in a second application.Embedded objects retain their original format and（4）to the application that created them. Support for OLE is builtinto the Windows and MacOS Operating Systems.A（5）compound document standard developed mainly by Apple and IBM is called OpenDoc. 空白（5）处应选择（）
A、completing
B、competing
C、connecting
D、contained
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下面组合体视图中，正确的左视图是（）。
A、A
B、B
C、C
D、D
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设访问串为：1，3，2，4，1，2，驻留集大小为3，按LRU策略控制上述访问串，应发生（）次页故障。
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VRML is a（1）for 3D multimedia and shared virtual worlds on the WWW. In comparison to HTML, VRML adds the next level of interaction, structured graphics, and extra（2）（z and time） to the presentation of documents. The applications of VRML are（3）,ranging from simple business graphics to entertaining WWW page graphics, manufacturing, scientific, entertainment, and educational applications, and 3D shared virtual worlds and communities. X3D is the name under which the development of VRML is continued. X3D is based on XML and is backwards（4）with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different（5），from high-end visualizations to lightweight applications. 空白（2）处应选择（）
A、subject
B、object
C、dimensions
D、disconnection