The chapter describes the implementation of the system bus and bus protocol; describes how the CPU and bus interact with peripheral devices; describes the purpose and function of device controllers; describes how interrupts coordinate actions of the CPU with secondary storage and I/O devices and describes how buffers and caches improve computer system performance; compare parallel processing architectures and describe compression technologies and its performance implications.
MPEG DASH: The File
Format of the Future?
A common file format for HTTP video delivery will make it
much easier to deliever web videos more securely. Apple has led the way with their proprietary
HTTP Live Streaming (HLS) but it is not perfect.
Microsoft is leading the charge with an alternative to HLS
called MPEG-DASH. (MPEG-backed Dynamic Adaptive Streaming over HTTP). With more
than 50 companies and 90 experts contributing to MPEG-DASH, it stands a
chance. What is needed is an
adaptive-optimized common format that can be delivered via standard web
servers, using common encryption.
The Common File Format (CFF) being refered to be based on
the Ultraviolet CFF that the DECE (Digital Entertainment Content Ecosystem)
ublished along with a Common Encryption (CENC) scheme that uses five distinct
digital rights management (DRM) schemes in an interoperable manner.
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