B2B Chapter 3 and 4 Flashcards
In the U.S., the federal government controls only the computers of governmental agencies. True or False?
False
Memory increases ____ times when resolution is doubled.
4
representation of photo in bits
model
an image representation based on a division of pixels
bitmap representation
How do digital cameras store images?
In bits and bytes
Process of capturing a photo
modeling
The only type of file that can be copied perfectly identical
audio
a compression technique
lossy representation
image representations based on division into pixels
Raster/Bitmap
Step 1 in the search engine process?
Gather information
Search engine process (7)
1) Gather information
2) Keep copies
3) Build an index
4) Understand the query
5) Determine the relevance
6) Determine the ranking
7) Present the results
Are algorithms biased?
Yes, because people write them
More than 90% of online adults use search engines. True or False?
True
4 Possibilities of who pays for internet
1) subscribers
2) web sites paid to be discovered
3) government or some nonprofit entity pays
4) advertisers
Who made Consumer Alert?
Ralph Nader
Google’s ad program
AdWords
What is lossy compression?
Loses some data compressing it
What is lossless compression?
No data is lost
Videos use ______ compression
lossy
Graphics use ________ compression
lossless
Art of sending messages in imperceptible ways
Stenography
Model turned into an image
Rendering
Model omits _________
information
Digital representation of images
raster
