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CGS exam 3

Terms in this set (50)

What does the internal hard disk normally store?
operating systems, software programs and other files
On a hard disk each track is divided into invisible wedge-shaped sections called
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________ are a popular solution for individuals and businesses where access speed is not essential, but capacity and durability are crucial
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examples of secondary storage
Hard Drives, SSD, USB Drives, CD-ROM, DVD-ROM, Blu-Ray, SD Cards
How does an external hard drive connect to a computer?
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Storage that retains its data after the power is turned off is referred to as
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The process of accessing information from secondary storage devices is referred to as ________
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The ________ of a secondary storage device indicates how much data the storage medium can hold
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_______measures the amount of time required by the storage device to retrieve data and programs?
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What is file compression and what is it used for? What is file decompression?
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his process improves system performance by acting as a temporary high-speed holding area between a secondary storage device and the CPU.
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Know the characteristics of RAID storage.
Expanding external storage, improving access speed, and providing reliable storage.
What are 4 ways to improve the performance of a Hard Disk?
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What are examples of solid state storage?
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What type of storage technology does a cell phone use?
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Optical disks use ___________ to represent data.
pits and lands
Know about CD-RW, DVD-ROM drives, Ultra HD Blu-ray and Blu-ray. What does the R in DVD-R stand for?
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How are solid state storage devices and hard disks different?
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What is it called when servers on the Internet supply applications as a service, rather than a product?
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What is cloud storage?
a place to save your files and access anywhere with an internet connection
What is disc caching?
provides a temporary high-speed holding area between a secondary storage device and the CPU; improves performance by anticipating data needs and reducing time to access data from secondary storage
________ speed is the measure of the amount of time required by a storage device to retrieve data and programs
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What are hybrid drives?
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What does WiMax stand for?
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Which of the wireless connections is considered a line-of-sight medium?
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Three common storage options discussed in your text are hard disk, ________, and solid-state storage.
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USB drives are also known as _______ drives.
flash
Which of the physical connections is the fastest?
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One of the most dramatic changes in connectivity and communications in the past few years has been ________.
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Know the wireless connections and physical connections
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Which devices originate and accept messages in the form of data, information, and/or instructions?
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n a communication system, which devices convert messages into packets that can travel across the communication channel?
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Microwave communication uses high-frequency _______.
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is a term relating to sending data to a satellite
Uplink
The GPS device in an automobile uses which communication channel?
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A service that uses existing phone lines to provide high-speed connections is called
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Cellular services use ________ to provide wireless connectivity to the Internet for smartphones
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The capacity of a communication channel is measured in ________
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Know the types of bandwidth.
voiceband, medium band, broadband, baseband
Every computer on the Internet has a unique numeric address called a(n)
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________ is the process of breaking down information sent or transmitted across the Internet into small parts.
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What is TCP/IP?
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The ________ is the central node that coordinates the flow of data by sending messages directly between the sender and receiver nodes.
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In a computer network, this node that requests and uses resources available from other nodes
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This device enables connectivity between two LANS or a LAN and a larger network.
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A wireless access point that provides Internet access in a public place such as a coffee shop, library, bookstore, or university.
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______, A network topology in which the central node is connected to two or more subordinate nodes that, in turn, are connected to other subordinate nodes.
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This type of network strategy uses central servers to coordinate and supply services to other nodes on the network.
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Organizations use the _________ to allow suppliers and others limited access to their networks.
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All communications between a company's internal networks and the outside world pass through this server.
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