Please enable JavaScript.
Coggle requires JavaScript to display documents.
computing ict test (Key words (cipher - A secret message written in code,…
computing ict test
Key words
cipher - A secret message written in code
Decipher- a message to unscramble cipher
Encryption- A way to scramble messages so that they are intercepted they cannot be read
WWW- the information sharing model wich sits on top the internet
Internet - A network of networks which spans the globe
Hypertext- text that links to other text
CPU-brain of the computer
Logic - the formal processes used in thinking and reasoning
Logic gates - the basic building blocks of a digital circut
Computer- a device which can automate calculations and logical reasoning
Problem solving-The ability to think logically in order to find a solution
Sir Tim Burners-lee
He invented the world wide web
English engineer and computer scientist
HTML =Hyper Text Markup language
it consists of short codes typed into text file
open notepad++.open text edit.write some html. save the page
:pen:
Charles Babbage
the father of computers he was known as and was a mathemitician before both world wars
he designed the first computer
2 kinds of logical reasoning can be distinguished in an adition to formal deduction aka pure thought
relationshipes between facts that make sense
Problem-solving is important both to individuals and organizations because it enables us to exert control over our environment.
George Boole
was a self taught proffesor of mathemitician at queens college
AND OR NOT logic gates
When a transistor is on, or open, then an electric current can flow through. ... When you string a bunch of these transistors together, then you get what's called a logic gate, which lets you add, subtract, multiply, and divide binary numbers
The OR gate is a digital logic gate that implements logical disjunction. 1+1=1, 0+1=1,0+0=0
A NOT gate, often called an inverter, is a nice digital logic gate to start with because it has only a single input with simple behavior.INPUT IS 1 OUTPUT 0 VICEVERSA
we use Boolean logic in engineering
The AND gate is a basic digital logic gate that implements logical conjunction TWO 1 = 1,1+0=0,0+0=0
only 0 and 1s input output 0 or 1
he invented booleian logic
ALAN turing
Alan turing made the machine that cracked the Germans code .Enigma code
he cracked the code
The pigpen cipher is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid
In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code or Caesar shift, is one of the simplest and most widely known encryption techniques.
the process of converting information
Born 1912
Btw he got arrested for being gay
:warning:
:check:
:star:
:checkered_flag: