100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached 4.2 TrustPilot
logo-home
Summary

Summary Data representation mindmap for AQA computer science GCSE

Rating
-
Sold
-
Pages
1
Uploaded on
01-04-2024
Written in
2022/2023

Unlock the power of data representation with our AQA Computer Science GCSE Summary Mind Map! This A3-sized visual aid offers a concise yet comprehensive overview of essential concepts, including binary, hexadecimal, ASCII, and more. Perfect for revision and exam preparation, this resource simplifies complex topics, making learning engaging and effective. Elevate your understanding and excel in your exams with our Data Representation Summary Mind Map!

Show more Read less
Institution
GCSE








Whoops! We can’t load your doc right now. Try again or contact support.

Written for

Document information

Uploaded on
April 1, 2024
Number of pages
1
Written in
2022/2023
Type
Summary

Content preview

if one or more




frequent inputs are 1 the


calculating
more : number of ,



1 else
-

output is
,

each bit can take 2
Shorts
binary cod saved
bits ↓
: it's O
flow of
electricity
is the
(24)


different values
I less
storage ASCII : characters x 7 Input
-
A


t
O is the
opposite




&
Output ++ B
-




.
Input B-




(
- -



I
NAME SIZE
OR
Bit
# single binary digit




(
gives each data value
output is
always Nibble 4 bits




&
binary
Front E)
a
uniqu& the
opposite
code
Byte bits
oo
the r g
value ur
to




-
128/64/32/16/8/4/2)
Kilobyte
He
1000





stores the number

of times a NOT if
exactly 1
input Megabyte 1000 res



-
is 1 the ourpur
Gigabyte megabytes
is




-&
piece of data ,
1000


& ~
1 else the
output
repeats
Lo output
,




10-
i

Terabyte
O

gigabyres
Input - XOR 1000
e 14 =
-




RUN LENGTH
HUFFMAN
if both
inputs 1
&
W
are ,
the

ENCODING output is 1
,
else the
CODING




-
output is O




-
- L OGIC
AND - B
UNITS
PROS
CoNy slight
reduction
FLAC PNG CONVERSION
quality eg
-
.

-
no reduction in ,


decompressed




- &
-




-
used on text
A B
-




on
data
temporarily removes .




Four 1)
A



I
t
PROS -outpu
reduces file size
-greatly
-less bandwidth BINARY
MP3, JPEG LOSSLESS
eg.
--
loses data


&
-




Data representation
used
rex~ LOSSY
-
can't be on


worse
quality -
-




-
COMPRESSION
permenantly losing data


web Page ee -
advantages
-
-
download
quicker
file
- HEXADECIMAL
-





less
storage STORING

-
less bandwidth
space
SOUND




-/
sample file size (in bit(
resolution
rate x
sample STORING CHARACTERS




ben
X
length I MACES
BINARY
bit rare
rate
sample x
sample SAMPLING
resolution
£7.48
Get access to the full document:

100% satisfaction guarantee
Immediately available after payment
Both online and in PDF
No strings attached

Get to know the seller
Seller avatar
paritamehta1

Also available in package deal

Thumbnail
Package deal
Data Representation Mindmaps - summary and fill in the blanks
-
2 2024
£ 12.92 More info

Get to know the seller

Seller avatar
paritamehta1
View profile
Follow You need to be logged in order to follow users or courses
Sold
0
Member since
1 year
Number of followers
0
Documents
7
Last sold
-

0.0

0 reviews

5
0
4
0
3
0
2
0
1
0

Recently viewed by you

Why students choose Stuvia

Created by fellow students, verified by reviews

Quality you can trust: written by students who passed their exams and reviewed by others who've used these revision notes.

Didn't get what you expected? Choose another document

No problem! You can straightaway pick a different document that better suits what you're after.

Pay as you like, start learning straight away

No subscription, no commitments. Pay the way you're used to via credit card and download your PDF document instantly.

Student with book image

“Bought, downloaded, and smashed it. It really can be that simple.”

Alisha Student

Frequently asked questions