Encoding methods and Modulation schemes 25.P.1 Computers use digital signalling‚ digitals signals are represented by the base 2 numbering system “Binary”. Binary bits are shown as 1 or 0‚ where 1 means ON and 0 means OFF. In a network where digital devices exist‚ digital signalling will be used. Dependant upon the encoding method used‚ a high voltage on a communications medium can represent a logical 1 and a low voltage of can represent a logical 0. Different methods of encoding exist these
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Mohammed Al Bittar - 1006091 1. What is meant by big data? A term used for complex sets of data which becomes very difficult to process‚ manage‚ or capture by commonly-used software. 2. What is meaning of data-driven culture? A culture where decisions made upon analyzing real statistical information. Like how Wal-Mart checks on the weather in order to provide more products to the customers; because their statistical information shows that whenever there is a storm‚ customers by
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In the middle of Manhattan‚ a non-descript building produced some of Rock and Roll’s iconic music of the 1950 and 60s. The period is steeped in harmonious girl bands‚ teen idols and probably the quintessential hallmark of this time period of Rock and Roll was the professional produced sound. The two titans of music producing hit after hit during this time period were the duo of Jerry Lieber and Mike Stoller and the other was once a student of Lieber and Stoller‚ Phil Spector and his infamous wall
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multiple choice question is worth 1 point. ____ ____ ____ ____ ____ 1. In a questionnaire‚ respondents are asked to mark their gender as male or female. Gender is an example of the a. ordinal scale b. nominal scale c. ratio scale d. interval scale 2. Data obtained from a nominal scale a. must be alphabetic b. can be either numeric or nonnumeric c. must be numeric d. must rank order the data 3. In a post office‚ the mailboxes are numbered from 1 to 4‚500. These numbers represent
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1. History of road By about 30.000 BC convenient routes were being well used by human travelers. The first human pathways would have developed for very specific purposes leading to campsites‚ food‚ water‚ ford across streams‚ passes trough mountains and routes through swamps and past dangerous area. The first record is of a cobblestone paving in Assyria in about 4000 BC. The oldest extant road was constructed trough the mountains of Crete‚ from Knossus to Leben in about 2000 BC. It could have
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workbook. Payroll data for the WC model should contain “only the actual hours worked” for specific Rate Schedule Codes (RSC) groups‚ including executives. The WC payroll data should exclude all paid leave types. A comparison of work hours from the NPHRS mainframe report to the summary in EDW reveals very small differences. We hope to align the NPHRS and EDW work hour data. Also‚ we (Technical Analysis‚ Accounting and Finance) need to understand and articulate to auditors why differences exist
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DATA COMPRESSION The word data is in general used to mean the information in digital form on which computer programs operate‚ and compression means a process of removing redundancy in the data. By ’compressing data’‚ we actually mean deriving techniques or‚ more specifically‚ designing efficient algorithms to: * represent data in a less redundant fashion * remove the redundancy in data * Implement compression algorithms‚ including both compression and decompression. Data Compression
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Q) What are Secondary Data? Secondary Data Secondary data is information gathered for purposes other than the completion of a research project. Data previously collected by someone else‚ possibly for some other purpose that can be used later for making decisions if found suitable for the purpose‚ other than the original one. Secondary data can be acquired from the internal records of the organization‚ their departments‚ subsidiaries or sister organizations and also from external sources‚ such
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Collecting‚ Reviewing‚ and Analyzing Secondary Data WHAT IS SECONDARY DATA REVIEW AND ANALYSIS? Secondary data analysis can be literally defined as second-hand analysis. It is the analysis of data or information that was either gathered by someone else (e.g.‚ researchers‚ institutions‚ other NGOs‚ etc.) or for some other purpose than the one currently being considered‚ or often a combination of the two (Cnossen 1997). If secondary research and data analysis is undertaken with care and diligence
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Russia. I believe that building a large factory near my community has advantages as well as disadvantages. In the following paragraphs I will list basic benefits and losses that will be brought by a new factory. For several reasons‚ I think that a new factory will not be a good addition to my neighborhood. First of all‚ factories often bring pollution. They are prone to contaminating the local air and water. Second of all‚ factories make noise. Another important aspect of building a new factory near
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