Unit 3.1 Computers and their Components

Input Device

Hardware that allows passing information from the outside world into a computer system.

Output Device

Hardware that displays processed data or converts digital data into a format processed by humans.

Memory

Provides fast temporary storage for active data and programs while being processed by the CPU.

Storage

Provides permanent storage of large quantities of data.

RAM

Random Access Memory holds active programs and data for quick access by the CPU.

ROM

Read-Only Memory holds initial instructions for starting the computer and is non-volatile.

Embedded Systems

Computers with dedicated functions within larger mechanical systems.

Monitoring Systems

Gather information about a system and report data back without modifying.

Control Systems

Modify the system to achieve desired outcomes and use feedback for stability.