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Computer science - Coggle Diagram
Computer science
unit 1:computer systems
Computers display many forms of information
binary code
1010
BINARY DENARY HEXADECIMAL
Ip addresses
Mac addresses
Color codes
binary, denary and hexadecimal are a cycle. you can convert one to another just like a cycle
we can convert between the different types of system
ADDITION MULTIPLICATION DIVISION
Binary shift
1 more item...
1111
0101
File sizes can be calculated
Storage
Text
,
sound
B I N A R Y
images
,
C O M P R E S S I O N
can reduced file size
bytes
Kibi Bytes
Bits
Mebi bytes
lossy
lossless
Unit 2: Data transmission
DATA PACKETS TRANSFER
Simplex
Half duplex
Parallel
Full duplex
Serial
Computer have a varieties connection
Errors are vital to detect
Parity check
Echo check
Check sum
Encryption
Asymmetric
Data -> public -> Private -> transmitted to another data
Symmetric
Data -> "key" -> transmitted to another data
