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what is the definition of technology?
anything that is made by humans
what are the four characteristics of technology?
includes physical objects and ideas, builds upon itself, changes society, not good or bad itself, but can be used in a good or bad way
what are the examples of things that are or not technology? explain.
rocks, dirt, trees, water, animals etc, are not technology because they aren't invented/made by humans. paper, pens, pencils, etc, are technology.
what is a computer?
a bunch of on and off switches
what can a computer do well?
what does a computer not do?
what does binary mean
what is a bit?
one unit of information
what is a byte?
words or codes but as two letters
what is a megabyte?
one million bytes
what is a gigabyte?
1,000 megabytes , 1 billion bytes
how does a memory in a computer work?
made if magnetic material divided into a grid of cells, each cell has a change (1) or no change (0) the CPU reads these cells bits and bytes
what is a CPU?
executes stared instructions
what is the primary memory's advantages and disadvantages?
advantages: RAM is fast
what is the secondary memory's advantages and disadvantages?
advantages: acts as long-term storage for information, tends to be cheaper than primary,
disadvantages: slower than primary storage
examples of secondary storage: hard drive, flash drive, CD, DVD, etc.
what is a system bus?
it is a device with information around it
what is a system clock?
a crystal that vibrates in response to electricity. the computer uses the number of vibrations to keep track of time
what is a port?
the connections to the computer for input and output
what is an input device?
anything that sends data ( bits and bytes ) into the computer
what is an output device?
anything that receives data from the computer and makes it accessible to humans
what is a code?
a set of instructions to tell a computer what to do
what is data?
information in 1's and 0's
what is a DNS?
an address book for the internet
what is an ethernet?
copper and electrical signals
what is fiber optic?
glass and light
what is an IP address
numbers that let you be found online
what is an ISP?
provides internet access to customers
what is an IX?
connects to ISP's
what is a modem?
a connection from your LAN to the internet
what are packets?
chunks of data
what are ports?
what are protocols?
rules to follow to communicate with other computers
what is a router?
connects computers together
what is a server?
a computer that provides files to other computers
what are transmission lines?
what the information travels on
what is a web browser?
- a program
- sends messages to display web pages
- puts together packets to display web pages
what is wifi?
what is a spreadsheet? what is it used for?
a program that lets us organize and analyze data
what is a cell?
a data container; intersection of a row and a column
what is a range
a series of cells that is named by the first cell and last cell
what is a column?
vertical line of cells that are always named by letters CL ( columns and letters )
what is a row?
horizontal line of cells that are always named by numbers RN ( rows and numbers )
what is another sheet?
a collection of cells organized in rows and columns
what are formulas? ( no functions )
basic math used without functions
what is a function?
a premade command with input and output variables
what are relative references?
cell references that can change example: B2
what are absolute references?
cell references that can't change example: $B $2
define: cell, column, row, function
data container, vertical line, horizontal line, premade command
what is the difference between a relative and an absolute cell reference?
RC can change and AC can't
how do you write a relative cell reference?
how do you write an absolute cell reference?
what is the difference between a formula and a function?
formula is basic math and function is premade math command
what does a formula always begin with?
how do you correctly write a formula?
must start with = and follow order of options
how do you correctly write a SUM function?
=, function, parenthesis, cell, : , cell, parenthesis, example: =SUM(B2:C2)
what is the autofill handle? what does it do?
small buy in corner of a cell
move from a cell over the right ___________.
move from a cell to one underneath _____________.
hold this key down to select cells that are next to each other.
hold this key down to select cells that are not next to each other.
how do you decide if a source is valid?
.gov websites, https, source of credibility
what is ethos? what is an example?
an appeal to ethics, convincing someone of the character
what is logos? what is an example?
an appeal to logic, persuading the audience by reason
what is pathos? what is an example?
an appeal to emotion, creating an emotional response
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