100+ Computer & Technology Full Forms List

Last updated: Sep 2026

Here's a comprehensive list of 100+ computer and technology full forms, from the basics (CPU, RAM) to modern terms (API, IoT). Perfect for students, professionals, and anyone learning tech abbreviations.

Full List of Terms

Abbreviation	Full Form	Basic Meaning
AI	Artificial Intelligence	Computer systems designed to mimic human intelligence
API	Application Programming Interface	Tools for software applications to communicate
APP	Application	Software program on a device
ATM	Automated Teller Machine	Machine for withdrawing cash without a teller
AWS	Amazon Web Services	Cloud computing platform by Amazon
BIOS	Basic Input/Output System	Firmware that starts a computer
BIT	Binary Digit	Smallest unit of data (0 or 1)
BLOG	Web Log	Online journal or website with articles
BROWSER	Web Browser	Software to access internet websites
BYTE	Binary Term	8 bits; basic unit for data storage
CACHE	Fast Storage	Quick-access memory to speed up processing
CAM	Camera	Device to capture images
CD	Compact Disc	Optical storage device
CD-R	Compact Disc-Recordable	CD that can be written to once
CD-ROM	Compact Disc Read-Only Memory	CD with data that cannot be changed
CPU	Central Processing Unit	Brain of the computer; processes data
CRT	Cathode Ray Tube	Old computer monitor technology
CSS	Cascading Style Sheets	Language for styling web pages
CSV	Comma-Separated Values	File format for data storage
DB	Database	Organized collection of data
DDoS	Distributed Denial of Service	Cyber attack that overloads a server
DHCP	Dynamic Host Configuration Protocol	Automatically assigns IP addresses
DNS	Domain Name System	Converts website names to IP addresses
DVD	Digital Versatile Disc	Optical storage with more capacity than CD
FTP	File Transfer Protocol	Method to transfer files over internet
GB	Gigabyte	1,000 MB; unit of storage
GHz	Gigahertz	Processor speed measurement
GPU	Graphics Processing Unit	Processor for graphics and gaming
GUI	Graphical User Interface	Visual interface for users to interact with computers
HDD	Hard Disk Drive	Traditional storage device in computers
HDMI	High-Definition Multimedia Interface	Cable for connecting devices to displays
HTML	HyperText Markup Language	Language for creating web pages
HTTP	HyperText Transfer Protocol	Protocol for transferring web pages
HTTPS	HyperText Transfer Protocol Secure	Encrypted version of HTTP
ICMP	Internet Control Message Protocol	Protocol for network diagnostics (ping)
IDE	Integrated Development Environment	Software for coding and programming
IoT	Internet of Things	Connected smart devices
IP	Internet Protocol	System for addressing devices on networks
ISP	Internet Service Provider	Company providing internet access
IT	Information Technology	Field of computers and digital systems
JSON	JavaScript Object Notation	Format for data exchange
KB	Kilobyte	1,000 bytes; unit of storage
LAN	Local Area Network	Network connecting computers in one location
LCD	Liquid Crystal Display	Flat-screen monitor technology
LED	Light Emitting Diode	Energy-efficient light source
MB	Megabyte	1 million bytes; unit of storage
MODEM	Modulator-Demodulator	Device for internet connection
MP3	MPEG Audio Layer III	Audio file format
MP4	MPEG-4 Part 14	Video file format
PDF	Portable Document Format	File format for documents that looks the same on all devices
PHP	Hypertext Preprocessor	Programming language for web development
PNG	Portable Network Graphics	Image file format with transparency
PPT	PowerPoint Presentation	Microsoft presentation software
RAM	Random Access Memory	Temporary memory for running programs
ROM	Read-Only Memory	Permanent memory that cannot be changed
RPM	Revolutions Per Minute	Speed measurement for hard drives
RSS	Really Simple Syndication	Format for distributing web content
SATA	Serial Advanced Technology Attachment	Connection standard for storage devices
SSD	Solid State Drive	Fast storage device without moving parts
SSL	Secure Sockets Layer	Security protocol for encrypted connections
SVG	Scalable Vector Graphics	Image format that scales without losing quality
TCP	Transmission Control Protocol	Protocol for reliable data transmission
TIFF	Tagged Image File Format	High-quality image file format
TLS	Transport Layer Security	Updated version of SSL for secure connections
UAC	User Access Control	Windows security feature
UDP	User Datagram Protocol	Fast data transmission protocol
UHD	Ultra High Definition	4K video quality
UPS	Uninterruptible Power Supply	Battery backup system
URL	Uniform Resource Locator	Website address
USB	Universal Serial Bus	Standard connection for external devices
VPN	Virtual Private Network	Secure connection for private internet access
WAV	Waveform Audio File Format	Uncompressed audio format
WEP	Wired Equivalent Privacy	Older wireless security protocol
WiFi	Wireless Fidelity	Wireless internet connection
WLAN	Wireless Local Area Network	Wireless network for computers in one location
WYSIWYG	What You See Is What You Get	Editor that shows output as you create it
XML	Extensible Markup Language	Language for storing and transporting data
YAML	YAML Ain't Markup Language	Human-readable data format
ZIP	Zone Information Protocol (or simply compression)	File compression format

Frequently Asked Questions

Q: What is the difference between CPU and GPU?

A: CPU handles general computing tasks, while GPU is optimized for graphics, gaming, and parallel processing.

Q: Is HTTP secure?

A: No — HTTP is not encrypted. HTTPS (secure version) encrypts your data for safety when browsing websites.

Q: What is the difference between MB and GB?

A: 1 GB = 1,000 MB. Gigabytes are used for larger file sizes and storage capacities.

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