Posted by Lijia and classified in Computers

Written at on English with a size of 4.21 KB.

--Reduncancy temporal-redundancy between frames, abrupt transition between frames spatial-redundancy within a frame
--fetch-execute cycle1.This address in the program counter is transferred MAR 2.During the next clock cycle two things happen simultaneou: a)Load the instruction in address of MAR into the MDR
 b)address stored in the PC is incremented. 3.The instruction stored in the MDR is transferred to the CIR.
--sampling1.The amplitude of the sound wave is determined to get an approximation of the sound wave 2.Which is encoded as a sequence of binary numbers and converted to a digital signal 3.Increasing the sampling rate will improve the accuracy of the recording.
--RLE1.Lossless method of compression 2.Reduces the size of a string of identical bytes 3.The repeating string is encoded into two values. 4.One value represents the number of identical characters in the run and the other value is the code of the character
--CodeofethicPUBLICSoftware engineers shall act consistently with the public interest. client and employerSoftware engineers shall act in a manner that is in the best interests of their client and employer consistent with the public interest. product Software engineers shall ensure that their products and related modifications meet the highest professional standards possible. judgement-Software engineers shall maintain integrity and independence in their professional judgment. management-Software engineering managers and leaders shall subscribe to and promote an ethical approach to the management of software development and maintenance. profesion-Software engineers shall advance the integrity and reputation of the profession consistent with the public interest. colleague-Software engineers shall be fair to and supportive of their colleagues. self-Software engineers shall participate in lifelong learning regarding the practice of their profession and shall promote an ethical approach to the practice of the profession.
--DRAMvSRAMDRAM has to be refreshed~~SRAM does not request a refresh=DRAM uses higher power~~SRAM uses less power=DRAM less expensive~~SRAM is more expensive=DRAM used in main memory~~SRAM used in cache memory
--Bit Streamingon demand In this case the delivery of the media and the playing of the media are two separate processes. The incoming media data are received into a buffer created on the user's computer. The user's machine has media player software that takes the media data from the buffer and plays it. Real time In this case the content is being generated as it is being delivered such as when viewing a sporting event. At the receiver end the technology is the same as before. The major problem is at the delivery end because a very large number of users may be watching simultaneously
--Events when Viewing a Website1. User specifies a URL in their client2. Client sends DNS lookup request to convert URL to an IP address and initiates a TCP connection to server 3. Server acknowledges TCP connection, client sends HTTP requests to retrieve content for the URL. 4. Server replies with content for web page and browser retrieves content from the HTTP packets and renders
--sampling-The height/amplitude of the (sound) wave is determined. 2.At set intervals 3.To get an approximation of the sound wave 4.Encoded as a sequence of binary numbers 5.Increasing the sampling rate will improve the accuracy of the recording.
--normalization-1nf-contains no repeating attribute or groups of attributes 2nf- it is in 1NF and every non-primary key attribute is fully dependent on the primary. Incomplete dependencies have been removed  3nf- it is in 1NF and 2NF and all nonkey elements are fully dependent on the primary key. No inter-dependencies between attributes.

Entradas relacionadas: