Lesson #1:
Intro to Computers
Intro to Computers
The steps of the information processing cycle.
Input
Processing
Output
Storage
A tool you use to put data or commands into a computer, like a keyboard or mouse.
Input device
The main software that manages hardware and lets other software run.
Operating System
1. A group of computers that are connected together in a home or building.
2. Connects computers and devices across a city or large area.
3. Connects computers and devices over long distances, often across cities or even countries.
1. Local area network (LAN)
2. Metropolitan area network (MAN)
3. Wide area network (WAN)
Type of computer is often carried in a backpack, briefcase, or purse.
Tablet
The main circuit board in a computer that connects all the parts together.
Motherboard
1. Lets you use, change, and share software for free, as long as you follow the rules.
2. Permission to use software that you buy, often with rules on how it can be used.
1. Open-source license
2. Commercial license
1. Frameworks that describe how computers and devices communicate with each other.
2. The arrangement of how computers and devices are connected in a network.
1. Network models
2. Network topology
Term that describes the collection of physical equipment within a computer system.
Hardware
The main part of a computer that holds the motherboard, CPU, and other components.
System Unit
A program that helps maintain and manage your computer, like virus scanners or disk cleaners.
Utility Software
A computer or device that asks for and uses services or data from a server in a network.
Client
4 parts of a computer system.
Hardware, Software, Data, and User.
A device that helps cool down the computer's parts by drawing away heat.
Heat Sink
1. A cloud storage service provided by Google.
2. A cloud storage solution provided by Microsoft.
1. Google Drive
2. OneDrive
A unique number that identifies a computer or device on a network.
IP address
A really powerful computer that can do super fast calculations and solve big, complex problems.
Supercomputer
The main permanent storage device of the computer.
Hard Drive
An agreement that tells you how you can use and share a computer program.
Software license
A set of rules that guides how data is sent and received over a network.
Network protocol
Computer memory that temporarily holds data and programs that are currently being used, so they can be accessed quickly.
RAM (Random Access Memory)
Equipment that shows or plays data from a computer, like a monitor or speakers.
Output Device
1. A way to type commands to control a computer, instead of clicking on icons.
2. Lets people use a mouse to click on icons or menus to send commands.
1. Command-line interface
2. Graphical User Interface (GUI)
1. A private network that allows certain outside people to access part of a company's network.
2. A private network within a company or organization that only its members can use.
1. Extranet
2. Intranet