4 Stages of Computing Process

(LAN)

Switch

(WAN)

Backbone

Remotely Accessed Computer Systems

Specialized Computers / Specialty Devices

POS

CPU

Hertz (Hz)

Gigahertz (GHz)

32-bit Processor

64-bit Processor

Passive Cooling

Heat Sink

Active Cooling

RAM

System Memory

DIMM

Motherboard

ATX

Micro (μ) ATX

μ

AC

DC

Power Adapter

Power Brick

PSU

PS/2 Connector

USB

HDMI Connector

VGA Connector

Display Port Connector

DVI connector

eSATA connector

RJ-45 Connector

Audio Connectors

USB-A

USB-B

USB Mini-B and USB Micro-B

Micro-B USB 3.0

USB-C

Binary

HDD

Digital

Bit

Byte

Kilobyte (kb)

Megabyte (mb)

Gigabyte (gb)

Terabyte (tb)

SSD

External Disk Drive

Optical Media

Flash Drive

NAS