● The （72） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.（72）A. applicationB. information systemC. operating systemD. iterative

题目

● The （72） has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.

（72）

A. application

B. information system

C. operating system

D. iterative

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第1题

User programs interact with the kernel through a set of standard(71). They request services to be provided by the kernel. Such services would include accessing a file: open close, read, write, link, or execute a file; starting or(72)accounting records; changing ownership of a file or(73); changing to a new directory; creating,(74), or killing a process; enabling access to hardware devices; and setting limits on system resources. Unix is a multi -user, multi -tasking operating system. You can have many users logged into a system simultaneously, each running many programs. It's the kernel's job to keep each process and user separate and to regulate access to(75), including cpu, memory, disk and other L/O devices.A．system commandsB．system transferC．system callsD．system rings

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第2题

An embedded operating system is the(71)program that manages all the other programs in an embedded device after initial load of programs by a(an)(72). It normally guarantees a capability within a specified(73)size and(74)constraint as well as with application programs. It also n0rmalty has small foot print including initial boot loader, OS kernel, required device drivers,(75)for the user data and so forth. It has very-likely structure of a normal operating system however mainly differentiated by some factors such as type of pre-installed device, functional limits, taking designed job only.A．hardwareB．businessC．softwareD．external

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第3题

The kernel is the(66)of an operating system such as Windows98, Windows NT, Mac OS or Unix. The kernel provides basic services for the other parts of the operating system,(67)it possible for it to run several programs at once(multitasking), read and write files and connect to networks and peripherals. Applications and utility programs use the services provided by the kernel to provide practical business functionality.In operating systems such as Windows or most versions of Unix, the kernel(68)everything except application and utility programs.In microkernel operating systems such as Digital Unix and Apples forthcoming Mac OS Server, the kernel(69)supports only multitasking and memory management. Other services such as applications, utilities and the user interface support device drivers, API and graphics which all(70)outside the microkernel.A．nucleusB．centerC．coreD．heart

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第4题

The(71)has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.A．applicationB．information systemC．operating systemD．information processing

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第5题

The ______ has several major components, including the system kernel, a memory management system, the file system manager, device drivers, and the system libraries.A．applicationB．information systemC．networkD．operating system

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第6题

The(71)is a general description of the architecture of a workflow management system used by the WFMC, in which the main components and the associated interfaces are summarized. The workflow enactment service is the heart of a workflow system which consists of several(72)。A．waterfall modelB．workflow reference modelC．evolutionary modelD．spiral model

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第7题

The __请作答该选项__ is a general description of the architecture of a workflow management system used by the WFMC, in which the main components and the associated interfaces are summarizeD．The workflow enactment service is the heart of a workflow system which consists of several ____.A.waterfall model B.workflow reference model C.evolutionary model D.spiral model

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● The (72) has several major components, including the system kernel, a memory management

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