1.3 - The CPU And Logic Flashcards
What is a logical statement?
A logical statement can be used to say If something is true or false. Logical statements can also be used to draw conclusions form data and make decisions
What is two - state?
Anything that can be in one only of two states.
How is a computer a two-state device?
A computer processor is made up of electrical switches. The electrical switches in a computer can be on or off.
How is logic a two state?
A logical statement can be true or it can be false.
How is binary two state?
In computers it shows the state of a switch , a ‘1’ is used to say switch is ‘on’. A ‘0’ says a switch is ‘off’.
Binary is also used to show the state of a logical statement. A ‘1’ can be used to show a statement is ‘true’.
A ‘0’ can be used to show its ‘false’.
Why can a computer’s ALU process logic problems?
It can do so because both logic and the computer use two sates.
Computer uses binary to show the state of a switch.
Logic uses binary to show the state of a logical statement.
What word is used to combine logical statements?
THEN (Should be capitalized)
What is a proposition?
(In logic) a statement that is either true or false.
What is a conclusion ?
(In logic) the outcome of one or more propositions
Where is a proposition’s position ?
On the left hand side of the logical argument
Where is a conclusion’s position in a logical argument?
On the right hand side of a logical argument
What is a logical argument?
An argument with one or more propositions (premises) leading to a valid conclusion. It’s the use of computer to produce facts
What is a truth table?
A way of present a logic statement in table format so that it can be easily read and understood.
How to create a truth table?
1) Write out the argument (always capitalize THEN)
2) Create the column headings
3) Add a row for every possible response to the proposition
4) Complete the conclusion column
What is arithmetic?
Are equations
Eg: answer = 2 + 3
