Unit 1.4: Computer Peripheral Devices

Peripheral Device :: External hardware connected to a computer to expand functionality

Plotter :: Output device used to create large-format drawings and diagrams

Purpose of Input Devices :: Allow users to interact with applications and enter data into a system

Purpose of Output Devices :: Present processed information to users visually or physically

USB-A :: Standard rectangular connector commonly used for keyboards, mice, flash drives, and printers

USB-C :: Reversible port that supports high-speed data transfer, charging, and video output

Micro-B :: Older compact connector commonly used for older phones and external hard drives

USB-A Limitation :: Not reversible and slower than USB-C

USB-C Benefit :: Supports power delivery, data transfer, and video output in one port

Micro-B Limitation :: Fragile and slower than USB-C

HDMI Benefit :: Carries both high-definition audio and video in one cable

HDMI Limitation :: Cable length can reduce signal quality over long distances

Warehouse Barcode Scanner :: Input device because it sends scanned data into the computer system

Why Peripheral Devices Matter :: They improve productivity and allow effective interaction with computer systems

USB-C Compared to USB-A :: USB-C is faster, reversible, and supports more functions

Why Understanding Ports Matters :: Helps users choose compatible devices and troubleshoot connection issues

Bluetooth Typical Range :: Usually about 30 feet or less

What USB-A Commonly Connects :: Keyboards, mice, printers, and flash drives

What USB-C Commonly Connects :: Displays, cameras, speakers, flash drives, and charging devices

What Makes USB-C Confusing :: Some cables look identical but support different speeds and features