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memorize.ai (lvl 286)

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Section 1

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The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, whereby the CPU was notified of events needing operating systems services. a. messaging b. paging c. sharing d. interrupt

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Date created

Mar 1, 2020

Cards (20)

Section 1

(20 cards)

The most common mechanism for implementing multiprogramming was the introduction of the ____ concept, whereby the CPU was notified of events needing operating systems services. a. messaging b. paging c. sharing d. interrupt

Front

Interrupt

Back

The best-fit allocation method keeps the free/busy lists organized by memory locations, low-order memory to high-order memory. True False

Front

False

Back

_____ allows separate partitions of a single server to support different operating systems a. multithreading b. multiprocessing c. shared processing d. virtualization

Front

Virtualization

Back

___means that several logical records are grouped within one physical record a. Combining b. Fixing c. Blocking d. Grouping

Front

Blocking

Back

The release of memory space by the Memory Manager is called a. deallocation b. relocation c. fragmentation d. free memory

Front

Deallocation

Back

Main memory is also known as a. random access memory b. single-user memory c. finite memory d. virtual memory

Front

Random access Memory

Back

Memory defragmentation is performed by the operating system to reclaim fragmented space. True False

Front

True

Back

A large job can have problems with a first-fit memory allocation scheme True False

Front

True

Back

With ___ operating systems, users can think they are working with a system using one processor, when in fact they are connected to a cluster of many processors working closely together. a. buffered b. distributed c. paged d. embedded

Front

Distributed

Back

The operating system manages each and every piece of hardware and software True False

Front

True

Back

The memory manager, the interface manager, the user manager, and the file manager are the four essential managers of every major operating system True False

Front

False

Back

Onboard systems are computers that are physically placed inside the products that they operate to add features and capabilities. True False

Front

False

Back

When reading an instruction, the operating system can tell the _____ of each group of digits by its location in the line and the operation code a. assignment b. value c. function d. order

Front

Function

Back

Operating systems with networking capability have a fifth essential manager called the Network manager that provides a convenient way for authorized users to share resources. True False

Front

True

Back

A ____ chip holds software that is used to start the computer a. ROM b. RAM c. CPU d. buffer

Front

ROM

Back

In a relocatable dynamic partition scheme, the ____ ensures that, during execution, a program won't try to access memory locations that don't belong to it. a. bounds register b. compaction register c. relocation register d. load register

Front

Bounds Register

Back

Each peripheral device has its own software, called a ___ which contains the detailed instructions required to start that device, allocate it to a job, use the device correctly, and deallocate it when it's appropiate. a. device software b. device handler c. device driver d. device controller

Front

Device Driver

Back

The goal of the ____ memory allocation algorithm is to find the smallest memory block into which a job will fit a. smallest-fit b. best-fit c. first-fit d. dynamic-fit

Front

best-fit

Back

The word _____ is used to indicate that a program is permanently held in ROM (read only memory), as opposed to being held in secondary storage. a. firmware b. shareware c. hardware d. software

Front

Firmware

Back

The memory manager is in charge of main memory, widely known as ROM True False

Front

False

Back