wireless network devices use ________ to communicate with each other.

wireless network devices use ________ to communicate with each other.

Asked by 10 months ago
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Two major types of system software programs.Utility programs and the operating system
The ____ of the operating system enables users to communicate with the computer system.User interface
OS X is the operating system developed by _____?Apple
NOT a network operating systemMS-DOS
UNIX developed by Ken Thompson and Dennis Richie, who worked where?AT and T's Bell Labs
Operating system used by supercomputersLinux
Operating system used on tabletsAndroid and iOS
Operating system used by smartphonesGoogle and Apple
Operating system used by desktop and labtopsWindows
OneDriveaccounts for easy access and storage of online files (used by Windows 8)
Latest version of Mac OS XMavericks
NOT a user interfaceGUI (Graphical user interface)
Virtual memoryusing hard disk space to temporarily store data or instructions from RAM
Device driverenables the device and operating system to communicate with each other (each device connected to computer comes with this program)
First step in boot processBIOS is activated
basic input/output system (BOIS) is stored onROM chip
top level directoryex; C: top of the filing structure of a computer
(Windows 8 File explorer) view that provides most info at a glancedetails
CANT be used in OS X file name:
File pathlocation of a file ex) C:\\Windows\System32\drivers\etc\protocol
Disk Defragmenterarranges pieces of files on your hard drive to allow for faster access
File Compressionremoves redundancies in a file to reduce the file size.
Windows Task Managercheck on a nonresponsive program
Time machinebackup utility, Mac OS X includes
Gaming consoles DO need an operating system....
A personal computer CAN have more then one operating system installed on it....
Computer runs out of RAM it DOES NOT borrow from CPU...
CMOS is NOT a special kind of memory that uses a great deal of power...
Preemptive multitaskingthe operating system processes higher- priority tasks before lower-priority tasks.
File names in Windows is NOT case-sensitive...
Moore's Lawrule of thumb that predicts the CPU capacity will double every 2 years
Processor market for desktop and laptops is dominated by_____?Intel
Does NOT determine processor powerSpeed of the motherboard
Activity carried out by the ALUPerform arithmetic calculations
NOT a part of the machine cycleencode
CPU consists of two partsThe control unit and the arithmetic logic unit
Control unit is one component of the ______CPU
Overclockingrunning the CPU at a faster speed than the manufacturer recommends
There are _____ levels of cache memorythree
Hyperthreadingprovides high speed info processing by enabling a new set of instructions to start before the previous set is finished.
Speed level of cache memory is impacted bythe chips proximity of the CPU
RAM is an example of ________ storage measure in _______ Type used in current systems?volatile GB DDR3
SuperFetchmonitors which application you frequently use and preloads them into your system memory.
Referring to hard drives, access time is measure in _________milliseconds
Solid-state driveuses electronic memory and has no motors or moving parts
optical disc with greatest storage capacity?Blu-ray
NOT an optical disc formatRead-erasable (RE)
________ has the largest capacity of any storage device?Mechanical hard drive
NOT used to connect to a video card?USB
_______ is installed on video cards to speed up display of graphicsGPU
Sound cardenables the computer to drive the speaker system
In Dolby Digital 7.1 the 1 =subwoofer speaker
Disk defragmentor utilitywill make the hard drive work efficiently
Disk cleanup utilityquick way to clear out unnecessary files
(Windows) Refresh Utilityreturns your computer to the state it was in when it came from the factory.
To securely erase data, the US Department of Defense suggest that the data be overwritten _______ times7
Multiple cores on one CPU chip allows the execution of 2 or more sets of instructions at the same time....
Cache memory is NOT a form of ROM...
Level 1 cache contains least amount of storage....
Faster to access data from hard drive by sending to CPU...
Optical discs store data using tiny pits and lands....
Video cards include their own RAM...
RAID 0 does NOT auto duplicate your data and save it to 2 identical drives...
Thunderbolt can NOT carry 3 channels of info to same connector....
Computer networkis 2 or more computers connected using software and hardware so that they can communicate with each other
Nodedevice connected to a network such as a printer or game console.
Throughputactual speed of data transfer that is achieved and is always less than or = to the data transfer rate.
NOT used to classify network architecturesSpeed of the network
Bandwidthmax speed data can be transferred between two nodes.
HANnetwork located in home that connects to all your digital devices
WANnetwork spans a large physical distance ex) internet
MANnetwork designed to provide access to specific geographic area, such as large city.
Fiber-optic cabletransmission medium that transmits data the fastest
Normal telephone cable is a type of _____twisted-pair cable.
client/server network is an ex) of_____central administration
P2P network is an ex) oflocal administration
Fastest version of wireless Ethernet802.11ac
Cable NOT used in wired networksUnshielded coaxial
NOT a type of UTP cable used in wired EthernetCat 7B
UTP (unshielded twisted-pair)most popular transmission media option for wired Ethernet networks.
Wireless network devices use ______ to communicate with each otherradio waves.
network adapter (each nodes needs this)for nodes on a network to communicate with each other and access the network.
switch (on a network)helps prevent data packets from colliding with each other
Sophisticated networks use ________ to ease the flow of data through the networkRouters and Switches
Routerto transfer data packets between two or more networks.
Packetsdata are sent through a network in bundles
Does NOT support P2PUnix
Network operating system (NOS)client/server network controlled by a central server that runs specialized software.
NASfacilitates file sharing and data backup
piggybackingusing a network without the network owner's permission.
-P2P, one computer does NOT act as a central computer -it IS most common on home networks -does NOT need operating system software installed on every node...
Current Ethernet in US is NOT based on IEEE 802.11ac...
Ethernet networks are NOT always connected twisted pair cable tech....
Most popular transmission media option for wired Ethernet networksUTP cable
Router does NOT act as traffic sign...
WEP NOT stronger form of security than WPA...
Form 1 3D printer founders used crowfunding site _______ to ask for $100,000 in pledgesKickstarter
Digital convergenceuse of a single unifying device that handles media, internet, entertainment, and telephone needs.
define iOSoperating system for mobile devices
operating system of cell is stored in ______?ROM
primary input devices for smartphonesmicrophone and touch pad
Google Playonline store that delivers software for Android devices
Analog-to-digital converter chipconverts sound waves from a voice into digital signal
Digital signal processor chipin cells, to handle the compression of data for it to be quickly transmitted to another phone.
Bluetoothuses radio waves to transmit data signals over short distances.
Many mobile devices include a micro _____ portUSB
Text messaging also called limited to _____ charactersshort message service (SMS) 160
Multimedia message service (MMS)can send photos and videos
Data planinternet connectivity plan
VoIP disadvantagereliability
global positioning system is a network of 21 _____ + 3 sparessatellites
distance between two near field communication (NFC) devices is limited to1.5 in
in US, ebooks account for ____ of book sales20-30%
E-textdigital textual info that can be stored, manipulated and transmitted by electronic devices
Digital rights managementallows only limited use of media that have been legally purchased
Sampling ratenumber of times an analog wave is measured each second during an analog to digital conversion
digital image format compresses the image fileJPEG
wireless network

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Views: 22
Asked: 10 months ago