●The most important core component of computer system is (71) ．(71)A．CD-ROMB．DRAMC．CPUD．CRT
●The most important core component of computer system is (71) ．
(71)
A．CD-ROM
B．DRAM
C．CPU
D．CRT
相关考题：
● （71） means that a program written for one computer system can be compiled and run on another system with little or no modification.（71）A. PortabilityB. ReliabilityC. AvailabilityD. Reusability
● In software engineering and systems engineering,（71） is a description of a system's behavior. as it responds to a request that originates from outside of that system.（71）A. black boxB. business ruleC. use caseD. traceability matrix
●The two goals of an operation system are（71）and efficiency.（71）A.convenienceB.quickC.optimizeD.standardize
●Which is the second layer from the bottom in Open System Interconnection Reference Model? (71)．(71) A. ApplicationB.Data linkC.NetworkD.Session
●A( 71) is a dedicated storage network that provides access to consolidated, block level storage. It is primarily used to make storage devices accessible to servers so that the devices appear as locally attached to the operating system.(71) A. network-attached storageB. storage area networkC. direct attached storageD. computer cluster
● The （71） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.（71）A. applicationB. information systemC. operating systemD. information processing
Every valid character in a computer that uses even(71)must always have an even number of 1 bits．(71)A．parityB．checkC．testD．compare
● （71） controls the operation of the computer and performs it′s dataprocessing functions.(71)A. CPUB. DiskC. MemoryD. I/O
● The line of computing jobs waiting to be run on a computer system might be a (71) . The jobs are serviced in the order of their arrival, that is, the first in is the first out.(71)A. queueB. stackC. arrayD. record
Although a given waveform. may contain frequencies over a very broad range，as a practical matter any transmission system will be able to accommodate only a limited band of (71) ．This，in turn，limits the data rate that can be carried on the transmission (72) ．Asquare wave has an infinite number of frequency components and hence an infinite (73) ．However, the peak amplitude of the kth frequency component，kf，is only 1/k，so most of the (74) in this wavefonn is in the first few fiequency components．In general，any digitalwaveform. will have (75) bandwidth．If we attempt to transmit this waveform. as a signalover any medium，the transmission system will limit the bandwidth that can be transmitte（71）A．frequenciesB．connectionsC．diagramsD．resources
● The （71） serves as the computer's CPU.（71）A. semiconductorB. microprocessorC. cacheD. bus controller
Password is a(n)(71)series of characters that enables a user(72)a file, computer or program. On multi - user systems,(73)user must enter his or her password(74)the computer will respond to commands. The password helps ensure that unauthorized users do not access the computer. In addition, data files and programs may require a password.Ideally, the password should be something(75)could guess. In practice, most people choose a password that is easy to remember, such as their name or their initials. This is one reason it is relatively easy to break into most computer system.A．obviousB．secretC．importantD．easy
Software refers to(70). The most important software on any computer is(71).A．inputB．programsC．outputD．electronic
试题（71）Which of the following would require real-time processing?（71）（71）A．Playing a computer gameB．Executing a program that predicts the state of economyC．Printing labelsD．Listening the music
The line of computing jobs waiting to be run on a computer system might be a(71). The jobs are serviced in the order of their arrival，that is，the first in is the first out.A．queueB．stackC．arrayD．record
The most important program on any computer is (73) .A．Office 2000B．VirusC．softwareD．Operating System
Currently the Pentium chip or(71), made by(72), is the most common CPU though there are many other companies that produce processors for personal computers. One example is the CPU made by Motorola which is used in Apple computers. With faster processors the clock speed becomes more important. Compared to some of the first computers which operated at below 30 megahertz((73))the Pentium chips began at 75 megahertz in the late 1990g. As of mid 2003 speeds now exceed 3000 + megahertz or 3 gigahertz(check your local computer store for the latest speed). It depends on the(74)that the chip is housed in, or the(75), as to whether you are able to upgrade to a faster chip. The motherboard contains the circuitry and connections that allow the various component to communicate with each other.A．processingB．professionalC．processorD．producer
is not a peripheral component or device. The basic input device on a small computer is a(71).A．Digital CameraB．PrinterC．MouseD．Driver
A computer virus is a computer program that is created to make and spread(71)of itself.A．programsB．virusC．copiesD．files
Most of the host operating system provides a way to automated configure the IP information needed by a host.Automated configuration methods,such as (71)，are required to solve the problemA.IPSecB.DHCPC.PPTD.SOAP
● （71） refers to the parts of the computer that you can see and touch.（71）A. SoftwareB. HardwareC. HardshipD. Instruction
● The most important program on any computer is （73） .（73）A. Office 2000B. VirusC. softwareD. Operating System
● Which of the following elements can be called the key element of a computer?（71）（71）A．printerB．CPUC．mouseD．keyboard
单选题71 A a strong B a most C a bad D an excitingAABBCCDD