第1题:
A(68)is used to show you what the computer is doing. It is called(69)equipment as well as the keyboard, the mouse and the printer.
A.moniter
B.modem
C.printer
D.shower
第2题:
Computer( )focuses on protecting information ,hardware ,and software from unauthorized use and damage.
A.network B.virus C.security D.architecture
第3题:
A microprocessor
B storage
C keyboard
D Printer
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Which of the following is the appropriate interface to connect an optical mouse and keyboard to a computer?()
第12题:
Approximately $120 billion in venture capital is estimated as having poured into technology stocks during the late 1990s, creating
During the late 1990s approximately $120 billion in venture capital is estimated to have poured into technology stocks and created
During the late 1990s it is estimated that there was approximately $120 billion in venture capital that was poured into technology stocks, creating
It is estimated that during the late 1990s approximately $120 billion in venture capital poured into technology stocks, creating
It is estimated that there was approximately $120 billion in venture capital that poured into technology stocks during the late 1990s and created
第13题:
The term computer describes a device made up of a combination of electronic and electromechanical components. By itself, a computer has no( )and is referred to as hardware, which means simply the physical equipment. The hardware can&39;t be used until it is connected to other elements, all of which constitute the six parts of a computer-based information system, hardware, software, data/information, people, procedures and communications. A system is defined as a collection of related components that( )to perform a task in order to accomplish a goal. Any organization that uses information technology will have a computer-based information system to provide managers (and various categories of employees) with the appropriate kind of information to help them make decisions. Systems analysis and design is to ascertain how a system works and then take steps to make it ( )Often, a system approach is used to define, describe, and solve a problem or to meet a(an)( ) From time to time, organizations need to( )their information systems, in, response to new marketing&39; opportunities, modified government regulations, the introduction .of new technology, merger with another company, or other developments. When change is needed, the time is ripe for applying the principles of systems analysis and design.
A.information B.software C.intelligence D.dataA.interact B.work C.connect D.changeA.improved B.better C.good D.bestA.decision B.need C.standard D.objectiveA.modify B.replace C.changeD.transfer
第14题:
Computer ( ) focuses on protecting information,hardware,and software,and software from unauthorized use and damade.
A.network B.virus C.security D.architecture
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()is used to communicate with another computer over telephone lines.
第23题:
is approximately halfway through its life as a yellow dwarf
has been in existence for 10 billion years
is rapidly changing in size and brightness
will continue as a yellow dwarf for another 10 billion years