Overview of Computer Hardware and Software Concepts

Individual Privacy Protection

Strategies to safeguard personal information online.

BUS

Electronic circuits routing data within a computer.

CPU

Central processing unit; computer's processing brain.

Memory

Working storage for program instructions and data.

Power Supply

Converts power source current to usable voltage.

RAM

Temporary storage for data and instructions.

Input Devices

Hardware allowing user input to a computer.

Keyboard

Device used for typing input into a computer.

Mouse

Pointing device for clicking on screen elements.

Optical Data Readers

Devices that scan barcodes for information retrieval.

RFID Devices

Use radio waves to identify objects automatically.

Touch Screens

Displays allowing direct user interaction.

Output Devices

Hardware converting computer data to readable format.

Display Screens

Visual output devices for computer information.

Printers

Produce physical copies of digital documents.

3D Printers

Create three-dimensional physical prototypes.

Moore's Law

Computing power doubles every two years.

Application Software

Programs solving specific user problems.

System Software

Coordinates computer hardware and software functions.

Operating System (OS)

Controls hardware and interfaces with applications.

Utilities

Programs for computer maintenance and modification.

Middleware

Connects different applications for data sharing.

Internet of Things (IoT)

Network of connected physical objects exchanging data.

5G

Higher frequency band enabling faster data transfer.

Internet

Infrastructure supporting the World Wide Web.

World Wide Web (WWW)

System delivering information over the internet.