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Terms in this set (44)
Operating systems provide vastly different functions, depending on the size of the computer or mobile device.
T/F
False. Similar functions.
The kernel is nonresistant, which means it remains in memory while the computer or mobile device is
running.
T/F
False. Memory resident.
(page 380)
Most users today work with a command-line interface.
T/F
False. Graphical user interface.
A user interface controls how you enter data and instructions and how information is displayed on the screen. T/F
True
Most operating systems today are multitasking. T/F
True
If the operating system is tHrashing, you first should try to exit the program before attempting to reboot the computer. T/F
True
Each device connected to a computer requires its own specific driver. T/F.
True.
An administrator should use the administrator account on a limited basis because the operating system is susceptible to spyware and malware attacks in this setting. T/F
True.
Many of the first operating systems were device dependent and proprietary. T/F
True.
Client operating systems cannot operate without a network. T/F
False. Can operate.
Linux is a proprietary software. T/F
False. Open source software - go in and make changes.
Operating systems that function as both desktop and server operating systems sometimes are called multipurpose operating systems.
True.
A ____ application is an application that runs the same on multiple operating systems.
Cross-platform
The ____ is the core of an operating system that manages memory and devices, maintains an internal clock, runs programs, and assigns the resources.
Kernel.
Placing a computer in ____mode saves any open documents and running programs or apps to an internal hard drive before removing power from the computer or device.
Hibernate.
In a ____, a user types commands represented by short keywords or abbreviations or presses special keys on the keyboard to enter data and instructions.
Command line interface.
The technique of swapping items between memory and storage is called____
Paging
Page 385-386
With____, the operating system allocates a portion of a storage medium to function as additional RAM.
Virtual memory
Page 386
In windows, the ____ consists of tabs, groups, and commands that provide access to tasks.
ribbon
A _____ is a multiuser operating system that organizes and coordinates how multiple users access and share resources on a network.
Server operating system
A process of restarting a computer or mobile device while it remains powered on.
warm boot.
Small program that tells the operating system how to communicate with a specific device.
Driver.
Windows term for a shortcut to an app or other content
Tile
Software that is privately owned and limited to a specific vendor or computer or device model.
Proprietary Software (Page 393)
ROM chips or flash memory chips that store permanent instructions.
Firmware
operating system that runs on computers and mobile devices provided by a variety of manufacturers
device- independent (pg 393)
section of storage or memory reserved for a specific program or application
Partition (pg396)
process of starting a computer or mobile device from a state when it is powered off completely.
cold boot
segment of memory or storage in which items are placed while waiting to be transferred from an input device or to an output device
buffer (p386)
set of commands used to control actions performed is a command-line interface
command language
Firmware
consists of ROM chips or flash memory chips that store permanent instructions.
Some computers can run multiple operating systems. T/F
True. P378
The operating system that a computer uses sometimes is called the _____
platform.
A _____ is an application that runs the same on multiple operating systems.
cross-platform application
The method you use to restart a computer or device differs, depending on the____ and _____
situation & hardware
The start up process is similar for large and small computers, as described in the following steps:
Step 1) when you turn on your computer or mobile device the power supply or battery sends an electrical current to circuitry in the computer or mobile device.
Step 2) The charge of electricity causes the processor chip to reset itself and finds the firmware that contains start up instructions.
Step 3) page 380
Step
4)
Step 5)
If you suspect a ______ it is recommended that you use a _____ boot to start a computer or device because this process detects and checks connected hardware devices.
Hardware
Cold boot.
If a program or app stops working, a ____is sufficient to restart the device because this process ____ ____.
warm
boot
clears memory.
A _____is the drive from which your personal computer starts, which typically is an internal hard drive, such as a _____ ___, or ___.
boot drive
Hard disk, or SSD
What is a boot disk?
removable media, such as a CD or USB flash drive, that contains only the necessary operating system files required to start the computer.
When the word, live, is used with a type of media, such as live USB or Live CD, this usually means
the media can be used to start the computer.
In situations when a boot disk is required to restart a computer or device that will not start from its boot drive, the boot disk is often refereed to as ___ ___.
recovery media
Sleep mode
saves any open documents and running programs or apps to memory, turns off all unneeded functions, and then places the computer in a low-power state. If, for some reason, power is removed from a computer or device that is in sleep mode, any unsaved work could be lost.
Hibernate mode
saves any open documents and running programs or apps to an internal hard drive before removing power from the computer or device.
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Verified questionsCOMPUTER SCIENCE
Show that the function $$ f(x) = 2^x $$ is convex.
Verified answer
COMPUTER SCIENCE
Consider the method below, which is intended to return true if there is at least one duplicate in the array, and false if there are no duplicates. boolean hasDuplicate(int[] nums) { for (int k=0; k<nums.length-1; k++) { if (nums[k]==nums[k+1]) return true; } return false; } Under which condition will the method not necessarily produce the desired result? (A) When the array is sorted in increasing order. (B) When the array is sorted in decreasing order. (C) When the values in the array are all positive. (D) When the values in the array are all the same. (E) When the array has at most 2 elements.
Verified answer
COMPUTER SCIENCE
Rewrite the code for fact to use fewer instructions.
Verified answer
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True/False: A function that creates a new instance of a class is called an accessor.
Verified answer
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