Chapter 1: Defining Information Technology Flashcards
What does the CPU do?
It performs instructions stored in the computer’s memory
What are 3 advantages that soft instructions have over hard instructions?
- Programs can be changed rapidly by loading new instructions onto the memory
- Programs can be much more complex
- Programs are autonomous - meaning they can run on their own without someone being there
What are integrated circuits?
They are chips made of silicon that are connected together before they are fully formed
What is photolithography?
Chip makers print the wires directly on the chips
What does a processor consist of?
It consists of the CPU, the cache, and some input and output devices that are connected to it
What is software?
Software is the programs that run on your computer.
What is a program?
A set of instructions that your computer follows
What is programming?
Instructing the computer to perform an action step by step
What is an agent?
Anything that can follow the instructions of a program.
What is an algorithm?
A precise method for producing a specified result
5 properties necessary for something to be an algorithm
- Input specified
- Output specified
- Definite
- Effective
- Finite
What is booting?
Starting a computer
What is rebooting?
Restarting a computer
What does it mean to abstract?
To remove the basic concept, idea, or process from a situation
What is the main goal of an algorithm?
To find the best possible way to do something effectively and efficiently.
