Digital Computers Flashcards
What is a digital computer?
An automatic, programmable data processor
What does digital mean?
The computer only understands the binary quantities that take the two values, 1 or 0
What does automatic mean?
It operates without human intervention (unless planned)
What does programmable mean?
The computer follows instructions that are stored as a program
What does data processor mean?
The computer performs tasks on the data it receives
Give some examples of digital computers?
Tablets, mobile phones, washing machines, ATM’s, games consoles and desktop computers
What is hardware?
The physical components
What is software?
The program used by the computer
Input, Process and Output process for a program that asks the user to enter three numbers, then adds them up and displays the answer. State the process.
Input: The user inputs the numbers using the keyboard.
Process: Program executes and adds the numbers together.
Output: The resulting characters are displayed on the screen.
