国家开放大学计算机专业英语

出自:国家开放大学计算机专业英语

Older microcomputers’ speeds are usually measured in nanoseconds. 选择一项：对错

The movement of electronic signals between main memory and the ALU as well as the control signal between the CPU and input /output devices are controlled by the control unit of the CPU. 选择一项：对错

The calculation speed of computer is controlled by the ALU unit. 选择一项：对错

RAM stands for read-only memory. 选择一项：对错

The CPU usually uses directly the software instructions and data stored in the hard disks. 选择一项：对错

As soon as you turn the computer off, the contents of RAM disappear. 选择一项：对错

Input devices can only input letters, numbers and symbols. 选择一项：对错

One pixel forms one character. 选择一项：对错

Paper is a medium for softcopy form. 选择一项：对错

Software is divided into system software, operating system, and application software. 选择一项：对错

Application software (also called end-user program) is designed to perform a specific function directly for the user. 选择一项：对错

Operating systems, compilers and utilities for managing computer resources are low-level programs. 选择一项：对错

With WPS, the user can modify a document and print it on a printer. 选择一项：对错

A spreadsheet is different from a table(表格),for each value is related to the other values in a spreadsheet. 选择一项：对错

Microsoft Word can help you design and manipulate spreadsheet electronically. 选择一项：对错

Microsoft Word XP is a member of Microsoft office 2000. 选择一项：对错

Documents created in Word are hard to be incorporated into Powerpoint. 选择一项：对错

Word Wizard can direct you how to do when you create a specific document, such as a business letter or resume. 选择一项：对错

Database is organized into tables. 选择一项：对错

One field may contai n several pieces of information. 选择一项：对错

Client/server database system is no longer in use now. 选择一项：对错

Flat-file style of database is suitable for large amounts of data. 选择一项：对错

Oracle is one example of relational databases. 选择一项：对错

One major advantage of relation model is that it allows duplication of data. 选择一项：对错

SQL Server can allow many users to visit the database at the same time. 选择一项：对错

To use SQL Server, you must install it on your local machine. 选择一项：对错

You can not change the location of the database during creating a new database. 选择一项：对错

During initial days of the development of software, everything was done in discipline. 选择一项：对错

The definition of software engineering is "the application of systematic, disciplined, quantifiable approaches to the development, operation, and maintenance of software." 选择一项：对错

Software engineering covers not only the technical aspects of building software systems, but also management issues. 选择一项：对错

Object-oriented method is widely believed to improve programmer productivity. 选择一项：对错

If you want to use the object in the object-oriented software development you should get to know something about what is in the “black box”. 选择一项：对错

OA and OOD do a great job for increasing the productivity. 选择一项：对错

The job of software testing is often concerned with verification and validation. 选择一项：对错

Black box testing and glass box testing have the same function to software-testing. 选择一项：对错

White box testing requires the tester to have knowledge of the internal structure. 选择一项：对错

Common topologies of networks include the star, bus, and ring. 选择一项：对错

A WAN is a network that connects LANs and nodes across a wide geographical area. 选择一项：对错

A switch sends packets to all nodes on a network. 选择一项：对错

WWW provides access to a variety of Internet resources from different interfaces. 选择一项：对错

Hyperlinks enable users to jump from site to site on the Internet. 选择一项：对错

Besides WWW sites, we can find many other resources, such as FTP, Telnet, E-mail. 选择一项：对错

The chief responsibility of TCP/IP is to ensure reliable point-to-point connectivity. 选择一项：对错

The packets may travel the same or different routes to the destination. 选择一项：对错

Under current (IPv4) specifications , each packet is 16 bits long. 选择一项：对错

Information system resembles nervous system in that they are both very large. 选择一项：对错

The main focus of MIS is the management function of an organization. 选择一项：对错

The application of EMIS can improve the efficiency and effectiveness of traditional school tasks. 选择一项：对错

Business-to-business e-commerce is the use of e-business between two companies. 选择一项：对错

The B2C e-commerce mainly uses the mechanism of EDI and the Web applications. 选择一项：对错