問題一覧
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involves having a current knowledge
Digital literacy
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an electronic device
computer
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types of computer
Laptop, Tablet, Desktop and All-in-One, Server
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Mobile and Game Devices
Smartphone Digital camera Portable and digital media player E-book reader Wearable device Game device
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contain keys
keyboard
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is an input device that allows a user to control
pointing device
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small symbol on the screen
pointer
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light-sensing input device
scanner
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is any hardware component that conveys information
output device
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is an output device that produces text and graphics
printer
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can print solid objects
3d printer
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is an output device that visually conveys text
display
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allow you to hear audio such as music
speaker
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consists of electronic components that store instructions
Memory
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computer keeps data, instructions, and information
storage media
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records (writes) and/or retrieves (reads) items to and from storage media
storage device
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worldwide collection of computer network
internet
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is a global library of information
World Wide Web
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consists of a worldwide collection of electronic documents
web
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worldwide collection of electronic documents
webpage
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is a collection of related webpages
website
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is a computer that delivers requested webpages to your computer
web server
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is software that enables users with an Internet connection
browser
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is software that finds websites
search engine
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encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users
online social network
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It is important that users protect their computers and mobile devices
Digital Safety and Security
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involves reducing the electricity consumed and environmental waste
Green computing
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tells the computer what tasks to perform
Software or program
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is the process of setting up the program
Installing a program
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is someone who develops programs
software developer, developer or programmer,
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one or more of these communications technologies
Chat rooms Email Internet Voice mail GPS
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is hardware capable of transferring items
communications device
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Examples of wireless communications technologies include:
Wi-Fi, Bluetooth, Cellular radio
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is a collection of computers and devices connected together
network
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Technology Uses
Education Government Finance Retail Entertainment Health Care Science Travel Publishing Manufacturing
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Storage drive
•Hard Disk •Solid-State Drive •USB Flash Drive •Memory Card •Optical Disc •Cloud Storage
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is a worldwide collection of networks
Internet
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originated as ARPANET in September 1969
internet
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internet originated
ARPANET
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Internet originated as ARPANET in
September 1969
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Internet 2 main goals
Allow scientists at different physical locations to share information and work together Function even if part of the network were disabled or destroyed by a disaster
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Allow scientists at different physical locations to share information and work together
internet
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Function even if part of the network were disabled or destroyed by a disaster
internet
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becomes functional
1969 ARPANET
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has more than 1,000 individual computers linked as hosts
1984 ARPANET
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a computer or device physically attaches via a cable or wire
wire connection
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Computers without a communications device can use a
wireless modem
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Wired
• Cable Internet service • DSL (digital subscriber line) • Fiber to the Premises (FTTP)
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Wireless
• Wi-Fi (wireless fidelity) • Mobile broadband • Fixed wireless • Satellite Internet Service
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is a wireless network that provides Internet
hotspot
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access to the Internet free or for a fee
Internet service provider (ISP)
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represents the amount of data that travels over a network
Bandwidth
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Bandwidth
– Megabyte (MB) – Gigabyte (GB)
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is a sequence of numbers
IP address
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is a text-based name
domain name
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translates the domain name
DNS server
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TLD
.com .edu .gov .mil .net .org
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commerical organizations
.com
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educational institution
.edu
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government agencies
.gov
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Military organization
.mil
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network providers
.net
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nonprofit organizations
.org
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consists of a worldwide collection of electronic documents
World wide web or www or web
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electronic documents
webpage
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is a collection of related webpages
website
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is a computer that delivers requested webpages
web server
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provide a means for users to share personal information
web 2.0
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enables users with an Internet connection to access and view webpages
browser
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is the first page that a website displays
home page
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BTW
by the way
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FYI
for your information
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IMHO
in my humble opinion
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TTFN
ta ta for now
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FWIW
for what it's worth
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TYVM
thank you very much
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types of computer and mobile devices
-Laptops, tablets, and desktops -Servers and terminals -Smartphones, digital cameras, e-book readers, portable and digital media players and wearable devices -Game devices -Embedded computers
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is a portable personal computer
mobile computer
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is a mobile computer or desktop
personal computer (PC)
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lightweight mobile computer with a screen
laptop or notebook computer
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lighter-weight mobile computer has a touch screen
tablet
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computer small enough to fit in one hand
handheld computer
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personal computer designed to be in a stationary location
desktop or desktop computer
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computer dedicated to providing one or more services
server
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types of server
Rack Server Tower Server Blade server Application server Backup server Database server Domain name server File server (or storage serve) FTP server Game server Home server List server Mail server Network server Print server Web server
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Stores and runs apps
Application server
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back up and restore filed
backup server
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store and provide access to the database
database server
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store domain names
domain name server
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stores and manage files
file server or storage server
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store files for user to upload or download via FTP
FTP server
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provides a central control for gaming
game server
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provide services to computers and devices in a household
home server
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stores and manage email lists
list server
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store and delivers email messages
mail server
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manages network traffic
network server
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manages printer and document
print server
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stores and deliver requested webpages
web server
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practice of sharing or pooling computing resources
virtualization
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uses software to enable a physical server
Server virtualization