Digital Information: Bits and Bytes + Binary Numbers Flashcards
Binary Data
1s and 0s
What parts of a computer contain all the info
wires + circuits
How is information stored in computers using electricity
using bits
Bit
the smallest piece of information a computer can store
What are Bits made of
(2 options) 0s OR 1s
BITS ONLY HOLD ONE PIECE OF INFO
Bits are stored in what
wires
How many bits are in 1 wire
1 ( a 0 and 1)
The binary number system
only 2 digits: 0 and 1 where each position multiplies by 2
(so like instead of ones position, tenths position, hundredths position, etc. you get ones position, twos position, fourth position, etc.)
how can you calculate a number with 1s and 0s
multiply 1 or 0 by the exponent number thingie whatever place its in
how do you calculate the binary system numbers of 1001
(12^3) + (02^2) + (02^1) + (12^0) = 9
How are texts represented with binary Data
assign numbers (and therefore binary thingies)
How are images represented with binary Data
pixels that have colors that are represented with different numbers
sound
a series of vibrations in the air
how is sound represented in binary Data
each point on a graph of a sound waveform is represented by a different set of binary Data
when sound is recorded in a graph what is it called
a sound waveform
higher quality sound has ____ (more/less) bits
more
What does a single bit represent
two different values (can be on or off, red or yellow, etc.etc.)
Which of the settings can be stored in a single bit?
User name – type in
Birthdate – drop down
Primary language – drop down
Sound effects – check box
and why
sound effects bc they’re either on or off
how do you determine how many different ways a set of bits can be interpreted
do 2 to the power of how many bits there are because each bit has 2 different options
Binary digit
represents either the value 0 or 1
Byte
a unit of digital information that consists of 8 bits
how to convert from bits to bytes
multiply by 8
how to convert from bytes to bits
divide by 8
why is there a specific name for bytes
because computers like to process bits in groups of 8 and they are also the smallest addressable memory unit of memory in most modern computers
if a computer has byte addressable memory can it store memory in a single bit
no
nibble
4 bits
byte
4 bits
crumb
2 bits
Hint for writing binary numbers that are odd
the last digit always has to be a 1
formula for highest number that can be represented by a certain AMT of bits
2^n - 1
