Hard Disc Drive

It is the Permanent Storage Device used in a Computer. It Stores Data such as files, photo's, Video's etc. Internal Hard Disc Drive is connected to the Motherboard inside a PC while External Hard Disc Drive is Connected to USB or other Port from outside a PC.
Internal Hard Disc Drive is a Must for Any Computer while External One is Used when you want to transport files and other data.

Synonyms: Hard Drive, Hard Disk Drive, HDD, Hard Disc

High Definition Multimedia Interface (HDMI) is the Latest Standard (better than VGA and DVI) used in Transfer of Digital Audio or Video Data.

HDMI is a compact audio and video interface for transmitting uncompressed digital data. It represents a digital alternative to consumer analog standards, such as Radio Frequency (RF) coaxial cable, composite video, S-Video, SCART, component video, D-Terminal, and VGA. HDMI connects digital audio and video sources like set-top boxes, Blu-ray Disc players, personal computers (PCs), video game consoles (such as the PlayStation 3 and Xbox 360), and AV receivers—to compatible digital audio devices, computer monitors, and digital televisions.