Unit 1 Flashcards

1
Q

program that acts as an intermediary
between the user of a computer and the computer hardware

A

Operating System

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2
Q

Purpose of the Operating System

A

provide an environment in which a user can execute programs

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3
Q

Primary goal of an Operating System

A

to make the computer system convenient to use

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4
Q

Secondary goal of an Operating System

A

to use the computer hardware in an efficient manner.

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5
Q

group of integrated parts that have the common purpose of performing various operations

A

Computer system

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6
Q

people involved in the data processing operation

A

Peopleware

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7
Q

physical electronic data processing device and tangible parts that constitute the computer system which includes the central processing unit (CPU), memory and input/output (I/O)

A

Hardware

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8
Q

program or set of instructions that enables the computer system to operate effectively which includes the programming languages, application program and the operating system

A

Software

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9
Q

the selection of the next batch of processes for a long job to be run.

A

Job Sequencing

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10
Q

a command language used to with a batch operating system.

A

Job Control Language Interpretation (JCL)

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11
Q

the OS activity that detects errors and in some cases corrects errors.

A

Error Handling

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12
Q

an OS or a portion of an OS that handles input and output devices.

A

I/O Handling

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13
Q

a program that causes an automatic suspension of program concurrently executed.

A

Interrupt Handling

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14
Q

determining the order by which resources will be assigned to processes and jobs.

A

Scheduling

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15
Q

the control of the resource used by two or more processes, either concurrently or one at a time.

A

Resource Control

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16
Q

the process of controlling and limiting access to the resources of the computer.

A

Protection

17
Q

a type of OS that switches inactive to a certain computer for multiple user’s using the system at the same time

A

Multi-access (time sharing)

18
Q

It makes it possible for complex activities to be performed in a predefined order.

A

Coordinator

19
Q

an OS can be considered as interface between the user and the hardware.

A

Interface

20
Q

allocating resources like printer, disk drives and other peripherals.

A

Resource Manager

21
Q

It set up access controls to protect files, allows restrictions on the reading, writing or executing of data and programs and keep users out of each other’s hair and out of its own. It may even control who can log onto the system.

A

Guardian

22
Q

individual users sequentially running programs by themselves on a large machine most likely are not fully utilizing the machine’s potential.

A

Resource Utilization Maximizer

23
Q

it keeps track of CPU time, memory usage, I/O calls, disk storage, terminal connects, and time and almost any other information you might want to have.

A

Accountant

24
Q

it provides services either implicitly or explicitly. A fundamentally important example of this is the file access mechanism.

A

Server

25
Q

Is an Operating System that has a multi-user and multitasking capabilities,

A

UNIX

26
Q

Is an open-source operating system, which kind of an adapted clone of a UNIX operating program.

A

LINUX

27
Q

Is acknowledged by the industry to be the premier reliable UNIX environment.

A

SOLARIS

28
Q

process of storing result (output) of an operation temporarily before forwarding them to the next operation

A

Buffering

29
Q

unit of memory given the task of holding information temporarily especially when such temporary storage is needed to compensate for differences in speed between computer components or overlaps I/O of its own competition or uses queue.

A

Buffer

30
Q

increases CPU utilization by organizing jobs so that the CPU has something to do.

A

Multiprogramming

31
Q

stands for simultaneous peripheral on line.

A

Spooling

32
Q

is the logical extension of multiprogramming.

A

Time sharing

33
Q

has some capacity that determines the number of messages that can reside in it temporarily.

A

Link

34
Q

the queue has maximum length 0; the link cannot have any message waiting in it.

A

Zero Capacity

35
Q

the queue has finite length n thus at most n messages can reside in it.

A

Bounded Capacity

36
Q

the queue has potentially infinite length thus, any number of messages can wait in it.

A

Unbounded Capacity