Unit 1 Flashcards
Describe the difference between data and information
Computers process data (input) into information (output) and often store the data and resulting information for future use.
Data
A collection of unprocessed items, which can include text, numbers, images, audio and video
Information
conveys meaning to users
Memory vs storage
Memory consists of electronic components that store instructions waiting to be executed and the data needed by those instructions. Although some forms of memory are permanent, most memory keeps data and instructions temporarily (contents are erased when the computer is shut off).
Storage holds data, instructions and information for future use.
Solid-State Drive (SSD)
Storage device that typically uses flash memory to store data, instructions and information. Flash memory contains no moving parts, making it more durable and shock resistent than other types of media.
Hard Drive
Use to collectively refer to hard disks and SSDs
Internet vs web
The internet is a worldwide collection of computer networks that connects millions of individuals and organizations.
The web consists of a worldwide collection of electronic documents. (One of the widely used services of the internet.)
virtual keyboard
keyboard that projects from a device to a flat surface
software
consists of a series of related instructions, organized for a common purpose, that tells the computer what tasks to perform and how to perform them (also called programs)
Who co-founded Apple?
Steve Jobs
Steve Wozniak
Ronald Wayne
mouse
a pointing device that fits under the palm of your hand comfortably
point
A mouse operation; move the mouse until the pointer is positioned on the item of choice
touchpad
a small, flat, rectangular pointing device that is sensitive to pressure and motion
How is a scanner similar to another output device?
A scanner converts printed text and images into a form the computer can process; a printer produces text and graphics on a physical medium
tap
Quickly touch & release
Used to activate a link, press a button
double tab
Quickly touch & release 1 finger 2 times
Used to run a program, zoom in
press & hold
Press 1 finger and hold until the action occurs
Used to display a shortcut menu, enable move icon mode
drag or slide
Press & hold 1 finger on an object and then move the finger to a new location
Used to move an item, scroll
swipe
Press & hold 1 finger then move horizontally or vertically
Used to scroll, display a bar from edge of screen
stretch
Move 2 fingers apart
Used to zoom in
pinch
Move 2 fingers together
Used to zoom out
Magnetic Media - For which of the following is the spelling, disk, used?
hard disk
If a slate tablet has no keyboard, how do you type on it?
You can you use your fingers to press keys on a keyboard that appears on the screen, called an on-screen keyboard, or you can purchase a separate physical keyboard that attaches to or wirelessly communicates with the tablet. You also may be able to speak into the tablet, and your spoken words will translate to typed text
malware
short for malicious software, is software that acts without a user’s knowledge and deliberately alters the computer’s or mobile device’s operations. Examples of malware include viruses, worms, trojan horses, rootkits, spyware, adware and zombies.
BTW: A leading maker of security software claims its software blocked more than 5 billion malware attacks in a single year.
VoIP
enables users to speak to other users over the Internet; Conversation that takes place over the Internet using a telephone connected to a computer, mobile device or other device
Microsoft co-founders
Paul Allen
Bill Gates
green computing
involves reducing the electricity consumed and environmental waste generated when using a computer. Strategies that support green computing include recycling, using energy efficient hardware and energy saving features, regulating manufacturing processes, extending the life of computers, and immediately donating or properly disposing of replaced computers.
What is the typical weight of a game console?
3-11 pounds
How much data usage would it take to upload or download photos?
50 photos – approx. 50 MB
How much data usage would it take to watch an HD streaming video
1 hour – approx. 5-20 GB
Fact or Fiction: Many browsers and websites do not require the http:// and www portions of a web address?
Fact
search engine operators
Space or +: results have both words in any order
OR: results have either word
(): order of operations – e.g. Kalamazoo Michigan (pizza or subs)
-: exclude a word from the search results
*: wildcard – e.g. writer* would look for words that start with writer
What is a subject directory?
classifies webpages in an organized set of categories, such as sports or shopping, and related subcategories
What is a disadvantage of a subject directory?
users sometimes have difficulty deciding which categories to choose as they work through the menus of links presented
What is the purpose of a bookmarking site?
a website that enables members to organize, tag and share links to media or other online content (e.g. pinterest)
examples of hot spot locations
shopping malls, coffee shops, restaurants, schools, airports, hotels and city parts