difference serial and parallel data transmission
Programming Serial and Parallel Ports
... reserved.// set up the serial portmyPort.setSerialPortParams(BAUD, SerialPort.DATABITS_8,SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);break;case CommPortIdentifier.PORT _PARALLEL: thePort = ... both serial (RS232/434, COM, or tty) and parallel (printer, LPT) ports. We’ll cover thisin more detail later, but briefly, serial ports are used for modems and occasionallyprinters, and parallel ... timeout.tty = (SerialPort) port.openPort("Penman Driver", 1000);// set up the serial porttty.setSerialPortParams(9600, SerialPort.DATABITS_8,SerialPort.STOPBITS_1, SerialPort.PARITY_NONE);tty.setFlowcontrolMode(SerialPort.FLOWCTRL_RTSCTS_OUT|SerialPort.FLOWCTRL_RTSCTS_OUT);//...
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Creating and Management Data Base
... tạo.Cú pháp:CREATE DATABASE database_snapshot_nameON(NAME = logical_file_name,FILENAME = ‘os_file_name’) [ , n ]AS SNAPSHOT OF source_database_name[;] RDBMS and Data Management/ Session ... liệu này được tự động xóa bỏ từ đĩa khi cơ sở dữ liệu bị xóa.Cú pháp:DROP DATABASE { database_name } RDBMS and Data Management/ Session 7/11 of 25Cơ sở dữ liệu người dùng định nghĩaVí ... liệu hệ thống RDBMS and Data Management/ Session 7/23 of 25Bản chụp cơ sở dữ liệuTạo CSDLTạo CSDLTạo bản chụpDữ liệu được sửa đổiBản chụp được khôi phục RDBMS and Data Management/ Session...
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Parallel Data Input-Output
... several-bit data is referred to as parallel data input/output and the peripheral functions for parallel data input/output are called "I/O ports", which have registers and pins as ... various data input and output, those of parallel data are the simplest and have a wide variety of uses. They are used for general purposes such as inputting signals from various sensors and turning ... Chapter 8 Parallel Data Input/Output Although the programs described in Chapter 6 use the memory and CPU registers only, this chapter explains how to input and output parallel data. Among...
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Data transmission
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Saving and Restoring Data
... format.Reading XMLBoth the DataSet and DataTable classes include ReadXml and ReadXmlSchema counterparts to the XML-writing methods. To use them, create a new DataSet or DataTable instance; then ... following code sets the namespace and prefix for a DataTable; the process for setting these values in a DataSet or DataColumn is identical:C#DataTable customers = new DataTable("Customer");customers.Namespace ... relevant DataTable, DataRelation, and content objects.Call the WriteXml method of the DataSet, passing it the file name as an argument.Import file-based XML into a new DataSet Create a new DataSet...
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DIGITAL DATA TRANSMISSION - I
... curves for Base band and ASK signalsSNR in dbPE- For Base band. for ASK Page 2 Purpose: The objectives of this laboratory are: 1. To implement baseband, amplitude shift keying, and phase reversal ... average BER and dividing it by the data rate. Therefore PE = BER / fs; Eb = 7.27 x 10-5 Figure 5 B (a) ASK BER measurement Page 14 Plot of PE vs SNR curves for Base Band and ASK signals ... Procedure A) Base band Transmission: The circuit is built according to the schematic shown in figure 5A. The data rate (fs) is set for 5 kHz. The Frequency counter is set to DC coupling and the auto...
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DIGITAL DATA TRANSMISSION - II
... LAB REPORT EXPERIMENT 6 DIGITAL DATA TRANSMISSION - II SUBMITTED BY Solve the equation above and get (f1-f0)T = 0.7151. This value is confirmed ... convey digital data. Normally, FSK modulation is achieved using just two frequencies to represent binary data. For example, a frequency of 2000 Hz may represent a binary 1 (mark) and 1000 Hz ... Master Clock). In this mode, a cosine begins at the start of every data period and proceeds at the frequency fx until the end of the data period. Then the process repeats. Figure 6c The FSk...
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Tài liệu Managing and tabulating data in Excel docx
... small amount of data, a visual scan after data entry may suffice as a data validation technique. However, when the amount of data is large and/ or you want to ensure that invalid data is not entered ... tutorials, and numerous timesaving and annoyance-removing macros and utilities. He plans to create a similar tool for Microsoft Excel, and, depending on resource constraints and demand, for ... Recovery And Safe Mode 30 CHAPTER 2 DATA ENTRY FORM 33 2.1 An Easier Way To Type In Data Plus A Multi-Series “Find” Utility (Data /Form) 33 2.2 Form Based Data Entry 33 2.2.a New data...
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Tài liệu Backups and Hidden Data doc
... understand the threats and have a chance at finding them. Let’s learn a bit more about how data can be hidden on a computer system.It makes sense for attackers or criminals to hide files and data ... my C:\ drive and typed in backup and sure enough, my Windows 95 box had a backup utility and it worked. We were able to make a “backup” of Perl and write it to a couple floppies and restore ... copy of the original information. This meant a user might compare a clean disk and an infected disk and not find a difference. A year after Brain was created in 1987, the most common virus in...
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Tài liệu Module 10: Backing Up and Restoring Data pdf
... toBack Up and Restore Data BackupBackupBackup Data Data Data Data Data Corruption Data Corruption Data CorruptionRestoreRestoreRestore Data Data The efficient recovery of lost data is ... Backing Up and Restoring Data 1 Overview !Introduction to Backing Up and Restoring Data !Preparing to Back Up Data !Backing Up Data !Restoring Data !Best Practices Backing up data is ... Module 10: Backing Up and Restoring Data Introduction to Backing Up and Restoring Data !The Goal of Backing Up Data Is to Restore That Data If It Is Lost!Permissions and UserRights Are...
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Tài liệu Module 4: Grouping and Summarizing Data doc
... 4: Grouping and Summarizing Data 5 Function Data type COUNT COUNT is the only aggregate function that can be used on columns with text, ntext, or image data types. MIN and MAX You cannot ... image data types. MIN and MAX You cannot use the MIN and MAX functions on columns with bit data types. SUM and AVG You can use only the SUM and AVG aggregate functions on columns with int, smallint, ... numeric, float, real, money, and smallmoney data types. When you use the SUM or AVG function, SQL Server treats the smallint or tinyint data types as an int data type value in your result...
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Tài liệu Java and XML Data Binding Brett McLaughlin Publisher ppt
... family will read and understand, and you slow down and get them right. First, for the technical folks. Mike Loukides and Kyle Hart manage to get me to write these books, and write them fast, ... APIs and simple to use. Data binding takes the complexity of reading and writing XML data out of APIs that should be focused on business rather than data tasks. 2.3 Constraint-Modeled Data ... source data binding API, and this chapter details its ins and outs. You'll see that Quick offers ideas and processes that are entirely different from most data binding frameworks and you'll...
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Tài liệu Analytical Methods: EViews and Panel Data ppt
... and intercepts. Even though you may fail to reject the hypotheses that represent restrictions that you impose, the hypotheses may not be perfectly true, and that may affect the estimators and ... on notes by M. D. Westbrook, and the EViews manual.]Eshragh Motahar7 Fulbright Economics Teaching ProgramFirst Semester 2002Analytical MethodsEViews and Panel Data EViews POOL objects operate ... readable.Example: Suppose we want to work with a panel data set on the USA, Canada, and Mexico. The variables that we want to use are GDP, Population, and Trade Flows. Variable Name First Part:GDPPOPTRAVariable...
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Tài liệu Backups and Hidden Data ppt
... understand the threats and have a chance at finding them. Let’s learn a bit more about how data can be hidden on a computer system.It makes sense for attackers or criminals to hide files and data ... my C:\ drive and typed in backup and sure enough, my Windows 95 box had a backup utility and it worked. We were able to make a “backup” of Perl and write it to a couple floppies and restore ... with A bit need to be saved!C:\>attribSCANDISK.LOG C:\SCANDISK.LOGA AUTOEXEC.BAT C:\AUTOEXEC.BATA CONFIG.SYS C:\CONFIG.SYSA COMMAND.COM C:\COMMAND.COMMYFILE.TXT C:\MYFILE.TXTSHR IO.SYS...
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