Chapters 1-3 for IT

a webpage is a collection of related websites
green computing
involves reducing the electricity consumed and environmental waste generated when using a computer
a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media
all security experts recommend disconnecting from the computer network before opening email attachments
consists of electronic components that store instructions waiting to be executed and data needed by those instructions
you usually need to install web apps before you can run them
a hot spot is a wireless network that provides internet connections to mobile computers and devices
5 or 7 pounds
a computer like the one in the picture weighs up to —-
a series of related instructions that tell the computer what tasks to perform and how to perform them
an electronic device, operating under the control of instructions stored in its own memory, that can accept data, process that data according to specified rules, produce results, and store the results for future use
each employee or customer who uses a computer in a large business is what kind of user?
you use an on-screen keyboard
if a tablet has no keyboard, how do you type on it?
what is a popular social networking site
its electronic components process data using instructions
what is true about a computer?
a memory card is a removable flash memory, usually no bigger than 1.5 inches in height
a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals
digital literacy
entails having the knowledge and understanding of computers, mobile devices, the Internet, and related technologies
solid-state drive (SSD)
if a manufacturer is looking for memory that is very durable and shock resistant, which kind of technology might it use in its laptops?
The internet has its roots in a network that became functional in 1969, linking scientific and academic researchers across the United States. What was the name of that network?
domain name
the text-based name that corresponds to the IP address of a server that hosts a website
like an IP address, the components of a domain name and separated by commas
a lower bandwidth means more data transmits
web developers often use FTP to upload their webpages to a web server
for watching HD streaming video for an hour, the approximate data usage is 3-6 MB
many browsers and websites don’t require the http:// and the www portions of the web address
smaller file sizes result in faster downloading of webpages because small files transmit more quickly than large files
once you post media, you might be giving up certain rights to the media
search engines
Bing, Google, and Yahoo! are all examples of web —
internet backbone
the major carriers of network traffic on the internet
the use of all capital letter is the equivalent of shouting
according to netiquette, internet users should assume which of the following?
every domain name contains a master domain, which identifies the type of organization associated with the domain
plan the website, design the website, create the website, host the website, and maintain the website
the five major steps of publishing
many publications such as airports, hotels, schools, shopping malls, and coffee shops are hotspots that provide wifi internet connections to users with mobile computers or devices
a mobile processor is a type of software for computers and mobile devices that reads a users specified web feeds and collects their most recent content
IP address
a number that uniquely identifies the location of each computer or device connected to the internet
educational website
offers exciting, challenging avenues for formal and informal teaching and learning
an internet connection is not necessary for participating in e-commerce
VoIP is an internet standard that permits file uploading and downloading with other computers on the internet
Broadband is a quicker connection and dial up connection is a slow connection. Popular broad band connections are cable internet service, digital subscriber line, fiber to the premises, wifi, mobile broadband, fixed wireless, and satellite internet service.
how does a broadband connection differ from dial up connection and review the types of broadband connections
up to 127
how many peripheral devices can you connect with a USB port?
unsolicited mail messages
personal computer
usually has only one user
server farm
a network of several servers , like those in the accompanying figure, together in a single location?
embedded computers
technology featured in the trend known as the Internet of things
an example of an operating system
short text messages sent via a message service are typically fewer than how many characters?
what is a portable, personal computer designed to fit in your lap
a brownout is a complete power failure
the smallest element in an electronic image
tower server
built into an upright cabinet that stands alone
UPS connects your computer and power source
not a type of kiosk
blade server
conserves space in a room
universal serial bus
occurs when the electrical supply or voltage drops, often defined as more than five percent, below the normal volts
rack server
housed in a bay within a metal frame
bundled software
not a hidden cost that a buyers guide refers to
an alternative to the use of your finger to enter data on a tablet like the one shown in the accompanying figure
joins a cable to a port