Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


D-1

(Digital-1) A 3/4" (19mm) broadcast-quality component digital videotape format that records uncompressed frames in the ITU-R BT.601 standard. Developed by Sony and Bosch in the mid-1980s, D-1 was the first professional digital video format and was later standardized by SMPTE.

Using costly tape decks and metal-particle cassettes, D-1 records standard definition (SD) at 704x480 pixels. It takes 1MB of storage for each frame; however, because a small amount of compression takes place, 30 fps requires a transfer rate of only 27MB per second. See ITU-R BT.601, D-2 and SD formats.



Personal Use Only

Before/After Your Search Term
BeforeAfter
CydiaD-2
CygwinD-3
cylinderD-4
cylinder skewD-5
cylithD-5 HD
CYMKD-6
CYODD-7
cypherD-8
CyrixD-9
DD-9 HD

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design