Frequently Used Acronyms, Expanded!

Hello Cybrary.it! This is my first time writing here, so if I make any mistakes, correct me in the comments. Some of these acronyms aren't used daily, but they're still good to know.

• CCTV / CLOSED CIRCUIT TELEVISION
• CPU / CENTRAL PROCESSING UNIT
• DDoS / DISTRIBUTED DENIAL OF SERVICE
• DoS / DENIAL OF SERVICE
• DMCA / DIGITAL MILLENNIUM COPYRIGHT ACT
• DNS / DOMAIN NAME SERVICE
• DSL / DIGITAL SUBSCRIBER LINE
• DVD / DIGITAL VIDEO DISK
• FTP / FILE TRANSFER PROTOCOL
• GIF / GRAPHICS INTERCHANGE FORMAT
• GPS / GLOBAL POSITIONING SYSTEM
• GPU / GRAPHICS PROCESSING UNIT
• HDMI / HIGH-DEFINITION MULTIMEDIA INTERFACE
• HTML / HYPER TEXT MARKUP LANGUAGE
• HTTP / HYPERTEXT TRANSFER PROTOCOL
  • HTTPS / HYPERTEXT TRANSFER PROTOCOL SECURE
• IT / INFORMATION TECHNOLOGY
• IDE / INTEGRATED DRIVE ELECTRONICS
  • INTEGRATED DEVELOPMENT ENVIRONMENT
• IDS / INTRUSION DETECTION SYSTEM
• ISP / INTERNET SERVICE PROVIDER
• IP / INTERNET PROTOCOL
• IPS / INTRUSION PREVENTION SYSTEM
• JPEG / JOINT PHOTOGRAPHIC EXPERTS GROUP
• LAN / LOCAL AREA NETWORK
  • WLAN / WIRELESS LAN
  • VLAN / VIRTUAL LAN
• LCD / LIQUID CRYSTAL DISPLAY
• LFI / LOCAL FILE INCLUSION
• LTE / LONG TERM EVOLUTION
• MAC / MEDIA ACCESS CONTROL
  • MULTI-ACCESS CONTROL
  • MESSAGE AUTHENTICATION CONTROL
  • MEMORY ACCESS CONTROL
• MAN / METROPOLITAN AREA NETWORK
• MPEG / MOVING PICTURE EXPERTS GROUP
• NAP /
  • NETWORK ACCESS POINT
  • NETWORK ACCESS PROTOCOL
• NAT / NETWORK ADDRESS TRANSLATION
• PDF / PORTABLE DOCUMENT FORMAT
• PNG / PORTABLE NETWORK GRAPHICS
• RAM / RANDOM ACCESS MEMORY
  • DRAM / DYNAMIC RAM
  • SRAM / STATIC RAM
• SD CARD / SEURE DIGITAL CARD
• SMS / SHORT MESSAGE SERVICE
• SSID / SERVICE SET IDENTIFIER
• SSD / SOLID STATE DRIVE
  • SSD-HD / SOLID STAT HYBRID DRIVE
• SSL / SECURE SOCKETS LAYER
• SQL / STRUCTURED QUERY LANGUAGE
• TCP / TRANSMISSION CONTROL PROTOCOL
• TLS / TRANSPORT LAYER SECURITY
• URL / UNIFORM RESOURCE LOCATOR
• VPN / VIRTUAL PRIVATE NETWORK
• WAN / WIDE-AREA NETWORK
• Wi-Fi / WIRELESS FIDELITY
• WWW / WORLD WIDE WEB
• XML / EXTENSIBLE MARKUP LANGUAGE
• 4G (LTE) / FOURTH GENERATION

Thanks, guys!