Computer Glossary (D–F) – Computer Performance

📘 Computer Glossary (D–F)

Data: Information stored and processed by computers.
Database: An organized collection of data for easy access and management.
Data Center: A facility that houses computer systems and storage.
Data Mining: Analyzing large sets of data to find patterns and insights.
Data Packet: A small unit of data sent across a network.
Data Recovery: The process of restoring lost or corrupted data.
Data Security: Protecting data from unauthorized access or corruption.
Debugging: Finding and fixing errors in software.
Default Gateway: A device that connects a local network to the internet.
Defragmentation: Reorganizing data on a disk for faster access.
Desktop: The main screen interface of a computer operating system.
DHCP (Dynamic Host Configuration Protocol): Assigns IP addresses automatically in a network.
Digital Certificate: A security credential used for encrypted communication.
Digital Divide: The gap between those with and without technology access.
DNS (Domain Name System): Translates website names into IP addresses.
Domain: A unique name identifying a website (e.g., example.com).
Download: Copying data from the internet to your device.
Driver: Software that allows hardware to work with an operating system.
DDoS (Distributed Denial of Service): A cyberattack that overloads a network or website.

E-commerce: Buying and selling goods online.
E-learning: Online education using digital platforms.
E-mail (Electronic Mail): Sending messages electronically over the internet.
Encryption: Converting data into a secure code to prevent unauthorized access.
Emulator: Software that imitates another system or device.
Ethernet: A wired networking technology for local area networks.
Executable File (.exe): A file that runs a program on a computer.
External Hard Drive: A portable storage device connected via USB or other ports.
ERP (Enterprise Resource Planning): Software for managing business processes.
Edge Computing: Processing data closer to where it’s generated, rather than in the cloud.
Email Client: A program (like Outlook or Thunderbird) used to send and receive emails.
Error 404: A standard web error indicating a page was not found.
Ethernet Cable: Physical cable used to connect devices in a LAN.
Event Log: A file that records system activities and errors.
Expansion Card: A hardware component added to a computer (e.g., GPU, sound card).

FAQ (Frequently Asked Questions): A list of common questions and answers.
FAT (File Allocation Table): A file system used by operating systems.
Fiber Optic Cable: High-speed cable that transmits data using light.
Firewall: A security system that controls incoming and outgoing network traffic.
Firmware: Software built into hardware devices for basic control.
Flash Drive: A portable USB storage device.
Folder: A virtual container for files on a computer.
Font: A style of text used in documents or on-screen.
Form Factor: The physical size and layout of computer components.
Fragmentation: The scattering of files across a hard disk, slowing performance.
Freeware: Software available for free use.
Front-End: The part of a website or app the user interacts with.
Full Stack Developer: A programmer skilled in both front-end and back-end development.
Function Key (F1–F12): Keys on a keyboard with special tasks.
FTP (File Transfer Protocol): A method for transferring files over the internet.