By Rachael Gutierrez

Entrepreneurs searching for POS systems in San Antonio desire programs that provide numerous business solutions . In the past, many stores relied on devices that did little more than tally purchases and secure funds. Modern business owners want programs that bring together multiple functions efficiently. The ability to analyze sales is a must for current managers. Up to date devices and software offer more convenience for those making purchases. In addition, technological improvements provide management with the ability to upgrade practices and, perhaps, make more money.

Several elements influence the decisions owners make about the right programs for their situations. In most cases, though, stores all want easily learned, flexible, protected and budget friendly packages. Many choose systems that can grow as their businesses grow. Their first investments may be basic, expandable set ups. At times, well established concerns go with sophisticated plans that meet their every need.

A majority of establishments seek the same fundamental elements. Most want programs that elevate the way the store is perceived by consumers. They also look for flexible options that easily accommodate changes in pricing and government fees. Many request products offering numerous methods for examining customer purchases. In some circumstances, the ability to track a money trail is also helpful.

Quite a few ready made software packages meet the basic needs of many businesses. There are plug in and go services for companies operating in particular categories like fast food, clothing, automotive shops and food providers. Many times these pre configured solutions allow changes which accommodate individual requirements.

Many store owners ask for specific methods to scrutinize sales. Inventory can be broken down into categories and analyzed. Software can also calculate the amount of money needed to produce a product. Combined, the two reports show managers which items generate profits and which may be money losers. Looking at purchases made at set times throughout the day is another helpful tool. This helps the person in charge know when to have certain things available for sale.

Some approaches allow managers to give each worker a specific sign in code. This tool is a good method for tracking employee productivity. In addition, it enhances the oversight of funds. If cash disappears through faulty handling or theft, discovering the cause becomes less troublesome.

A higher degree of software sophistication adds to overall efficiency. Some POS systems can be installed with various methods for speeding up stock counts. Invoices and inventory numbers are put into the equipment at specified times. Needed documentation prints out on command. As a result, there is no duplication of effort.

The introduction of integrated sales software offers many advantages to most stores. The needs of a great number of establishments can be satisfied by off the rack products. However, a lot of businesses require more options for their operations. A few upgrades often give owners everything they want. There are companies that will need sophisticated programs to take care of their wide range of activities. Discussing the various possibilities with a person trained in installing POS systems in San Antonio makes sense for ventures large and small.

About the Author:

Read more about Looking For POS Systems In San Antonio That Offer Managers Multiple Features visiting our website.

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I was looking at Pricegrabber this morning and it seems more stores are carrying the upcoming AMD Triple Core Phenom 50-series processors are up for sale! The AMD Phenom 8650 Triple Core Processor is currently running $185.99 over at TheNerds.net if anyone is interested. The AMD Phenom 8750 Triple Core Processor runs $218.99 for those looking for a higher clock frequency of 2.4GHz

Newegg is also selling this pair of triple-core AMD Phenom X3 processors! The Phenom X3 8750 will run you $195 and the Phenom X3 8650 runs in at $165. Newegg seems like the place to go for Phenoms!

AMD Phenom triple-core processors, expected to be the worlds first PC processors to integrate three computational cores on a single die of silicon, can help deliver the visual experience, performance and multitasking capabilities of true multi-core technology to a broader audience. Offering state-of-the-art platforms and a next-generation architecture with expected availability in Q1 2008, the industrys only x-86 triple-core desktop processor shows why AMDs the smarter choice, with its expanded portfolio for customers to offer platforms with unique multi-core options.

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Are you or your company about to get a new printer?  Before you do, check out my latest article for CADspeed.  Its part One of a three part series.  In it I look at your needs, wants, and help you to come up with a plan to make sure you get the printer thats right for you.

Check it out!

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App Inventor for Android is another example of Cloud Computing. You can build your Android apps from the Java enabled browser and sync to your Android device at ease. In addition, everyone can build Android apps by App Inventor for Android without any deep knowledge of Java and/or programming.



Go to Register Form to register your account for App Inventor for Android. You may require to wait for several weeks in order to receive the access permission email from Google.



On your Android device



Download and install "AppInventor Toggle" from the Market of your Android device.



Run "AppInventor Toggle", press "Menu", enable "Cable Detection" and disable "AppInventor Orientation".



Exit "AppInventor Toggle", Press "Menu", "Settings", "Applications" and "Development", then enable "USB Debugging"



On your Ubuntu 10.04 desktop



Ubuntu 10.04 comes with OpenJDK (open source version of Java) and it is ready to go. You can download OpenJDK at Ubuntu Software Centre if it is not installed. Or, you can use Sun Java instead but you are required to enable the repository at "System", "Administration", "Synaptic management".



Be keep in mind that App Inventor for Android official site recommend Sun Java instead of OpenJDK. If you encounter abnormal behavior on the web application, please install Sun Java instead.



Go to Extra Software page and download the Debian package. The current version at this writing is 1.02.



sudo dpkg -i appinventor-extras_1.02_all.deb



You may encounter "Unable to get SyncService for device" when you are connecting to your Android smartphone from Blocks Editor of App Inventor web application. The following is the procedure to solve this problem.



sudo nano /etc/udev/rules.d/51-android.rule



Append the following line.

SUBSYSTEMS=="usb", ATTRS{idVendor}=="0bb4", ATTRS{idProduct}=="0ff9", MODE="0666



Create a shell script.

nano android-syncservice



Append the following lines.

#!/bin/sh

# Solve the problme of "Unable to get SyncService for device" while connecting to Nexus One under Blocks Editor of App Inventor

cd /usr/google/appinventor-extras/commands-for-Appinventor/

./adb kill-server

./adb devices

cd ~

exit 0



Copy the shell script to /etc/init.d and make it running automatically on every boot.

sudo cp android-syncservice /etc/init.d/

sudo chmod +x /etc/init.d/android-syncservice



sudo update-rc.d android-syncservice defaults



Or, you may require to reboot your system when need.



Now connect your Android device to your Ubuntu 10.04 desktop with the USB cable. You are ready to go ....



Follow the instructions at Connect App Inventor to Your Phone.



Then, study the Tutorials.



Finally, Live Development, Testing and Debugging.



Known Issue



The size of the apk (application package) is quite large, it is at least about 3 to 4 MB of size for a very simple application, such as tutorial apps.



Thats all! See you.

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Dassault Systemes, makers of CATIA and Solidworks, put out a free 2D drafting program called DraftSight a few months ago.   As soon as I saw this I downloaded DraftSight and gave it to an intern to break.  From time to time I also used it in production.  Now, DraftSight is available for free on a MAC.  If you are running a PC or a MAC you can use DraftSight, for free.  I have a few opinions on DraftSght and I would like to share them with you.

In short, I feel that DraftSight is both good and bad.  My recommendation for it, or against it, will depend on your situation.

First, the reasons to use it.

• Its free.  This is the best reason to use it.  Its free.  What else can I say.  It is definitely worth the cost.
• It can read/write DWG files.
• If you are an AutoCAD User/Veteran, it "feels" like AutoCADr14 or maybe even AutoCAD 2000.
• Its keyboard commands recognized standard AutoCAD keyboard commands.  "L" is for "line".
• AutoCAD users can work with DraftSight right away.

Now, my reasons not to use it.

• It can only draw in two dimensions.
• Lisp is not yet functional (but we are told it will be soon so I hesitate to bring this up)
• It lacks powerful design/drafting tools (for example: Dynamic Blocks, Constraints, Sheet Managers)
• Can not reference PDF files.

DraftSight is great for making 2D line drawings with no intelligence.  If all you and your firm do is make line drawings then you should use DraftSight.  If you are a hobbyist or need a drafting tool at home, please use DraftSight.

If you produce multiple sheet drawing sets, use something else.  If you need aerial images or PDF files in your drawings, use something else.  If you need design tools like Dynamic Blocks, or Parametric Constraints dont use DraftSight.  If you ever need to create a 3D model, even a basic one, use something else.  

DraftSight is a great 2D companion program to run alongside a powerful 3D design package, but it cant do everything.  Ill be the first to admit that I am an AutoCAD Fanboy, but I feel that DraftSight has its place.  It is an easy to use 2D drafting tool.  Its features are similar to AutoCAD r14 or AutoCAD 2000.  But it lacks many of the enhanced features that Autodesk has put into AutoCAD over the last ten years.  If you want a powerhouse CAD program that can do everything from 2D linework to 2D Constrained Design and all the way to 3D free form surface and mesh modeling, then pay for it and get AutoCAD.  AutoCAD isnt cheap, but DraftSight is.  DraftSight is limited in what it can do, but if thats all you need why pay for more?

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Q. Can you code in Java for the following scenario?

Write a multi-threaded SumEngine, which takes  SumRequest with 2 operands (or input numbers to add) as shown below:

package com.mycompany.metrics;

import java.util.UUID;

public class SumRequest {
 
 private String id = UUID.randomUUID().toString();
 private int operand1;
 private int operand2;
 
 protected int getOperand1() {
  return operand1;
 }
 protected void setOperand1(int operand1) {
  this.operand1 = operand1;
 }
 protected int getOperand2() {
  return operand2;
 }
 protected void setOperand2(int operand2) {
  this.operand2 = operand2;
 }
 protected String getId() {
  return id;
 }
 
 @Override
 public String toString() {
  return "SumRequest [id=" + id + ", operand1=" + operand1 + ", operand2=" + operand2 + "]";
 } 
}

and returns a  SumResponse with a result.

package com.mycompany.metrics;

public class SumResponse {
 
 private String requestId;
 private int result;
 
 protected String getRequestId() {
  return requestId;
 }
 protected void setRequestId(String requestId) {
  this.requestId = requestId;
 }
 protected int getResult() {
  return result;
 }
 protected void setResult(int result) {
  this.result = result;
 }
 
 @Override
 public String toString() {
  return "SumResponse [requestId=" + requestId + ", result=" + result + "]";
 }
}

A. Processing a request and returning a response is a very common programming task. Here is a basic sample code to get started.This interface can take any type of object as request and response.

package com.mycompany.metrics;

/**
 * R -- Generic request type, S -- Generic response type 
 */
public interface SumProcessor<R,S> {
 
    abstract S sum(R request);
}

Step 1: Define the interface that performs the sum operation. Take note that generics is used .

package com.mycompany.metrics;

/**
 * R -- Generic request type, S -- Generic response type 
 */
public interface SumProcessor<R,S> {
 
    abstract S sum(R request);
}

Step 2: Define the implementation for the above interface. Takes SumRequest and returns SumResponse. 

package com.mycompany.metrics;

public class SumProcessorImpl<R,S> implements SumProcessor<SumRequest, SumResponse> {

 @Override
 public SumResponse sum(SumRequest request) {
  System.out.println(Thread.currentThread().getName() + " processing request .... " + request);
  SumResponse resp= new SumResponse();
  resp.setRequestId(request.getId());
  resp.setResult(request.getOperand1() + request.getOperand2());
  return resp;
 }
}

Step 3: Write the multi-threaded  SumEngine. The entry point is the public method execute(SumRequest... request ) that takes 1 or more SumRequest as input via varargs. ExecutorService is the thread pool and closure of Callable interface is the executable task that can be submitted to the pool to be executed by the available thread.

package com.mycompany.metrics;

import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicInteger;

public class SumEngine {

private final AtomicInteger requestsCount = new AtomicInteger();

 ExecutorService executionService = null;

 //executes requests to sum
 public void execute(SumRequest... request) {
  executionService = Executors.newFixedThreadPool(5); //create a thread pool
  List<Callable<SumResponse>> tasks = createExecuteTasks(request);
  List<Future<SumResponse>> results = execute(tasks);
  for (Future<SumResponse> result : results) {

   try {
    System.out.println(Thread.currentThread().getName() + ": Response = " + result.get());
   } catch (InterruptedException e) {
    e.printStackTrace();
   } catch (ExecutionException e) {
    e.printStackTrace();
   }
  }
                 
   //initiates an orderly shutdown of thread pool
   executionService.shutdown();
 }

 //create tasks
 private List<Callable<SumResponse>> createExecuteTasks(SumRequest[] requests) {
  List<Callable<SumResponse>> tasks = new LinkedList<Callable<SumResponse>>();
  executingRequests(requests.length);
  for (SumRequest req : requests) {
   Callable<SumResponse> task = createTask(req);
   tasks.add(task);
  }

  return tasks;
 }

 //increment the requests counter
 private void executingRequests(int count) {
  requestsCount.addAndGet(count);
 }

 //creates callable (i.e executable or runnable tasks) 
 private Callable<SumResponse> createTask(final SumRequest request) {
  // anonymous implementation of Callable.
  // Pre Java 8s way of creating closures
  Callable<SumResponse> task = new Callable<SumResponse>() {

   @Override
   public SumResponse call() throws Exception {
    System.out.println(Thread.currentThread().getName() + ": Request = " + request);
    SumProcessor<SumRequest, SumResponse> processor = new SumProcessorImpl<>();
    SumResponse result = processor.sum(request);
    return result;
   }

  };

  return task;
 }

 //executes the tasks
 private <T> List<Future<T>> execute(List<Callable<T>> tasks) {

  List<Future<T>> result = null;
  try {
   //invokes the sum(sumRequest) method by executing the closure call() inside createTask
   result = executionService.invokeAll(tasks);
  } catch (InterruptedException e) {
   e.printStackTrace();
  }

  return result;

 }
 
 public int getRequestsCount(){
  return requestsCount.get();
 }
}

Step 4: Write the SumEngineTest to run the engine with the main method. Loops through numbers 1 to 5 and adds each consecutive numbers like 1+2=3, 2+3=5, 3+4=7, 4+5=9, and 5+6 = 11.

package com.mycompany.metrics;

import java.util.ArrayList;
import java.util.List;

public class SumEngineTest {

 public static void main(String[] args) throws Exception {

  SumEngine se = new SumEngine();
  
  List<SumRequest> list = new ArrayList<>();

  // sums 1+2, 2+3, 3+4, etc
  for (int i = 1; i <= 5; i++) {
   SumRequest req = new SumRequest();
   req.setOperand1(i);
   req.setOperand2(i + 1);
   list.add(req);
  }

  SumRequest[] req = new SumRequest[list.size()];
  se.execute((SumRequest[]) list.toArray(req));

 }
}

The output is:

pool-1-thread-2: Request = SumRequest [id=bca23e97-3a6f-4e42-aff4-5ed5f7de2783, operand1=2, operand2=3]
pool-1-thread-4: Request = SumRequest [id=36d95b35-09f0-4e93-99e4-715ea7cb33c9, operand1=4, operand2=5]
pool-1-thread-3: Request = SumRequest [id=31ccd137-349a-4b7a-93b1-e51f62c11ba9, operand1=3, operand2=4]
pool-1-thread-1: Request = SumRequest [id=4bfa782a-c695-4de6-9593-cbfd357c3535, operand1=1, operand2=2]
pool-1-thread-5: Request = SumRequest [id=c653f469-6a6f-45b6-99f2-ed58620fd144, operand1=5, operand2=6]
pool-1-thread-4 processing request .... SumRequest [id=36d95b35-09f0-4e93-99e4-715ea7cb33c9, operand1=4, operand2=5]
pool-1-thread-2 processing request .... SumRequest [id=bca23e97-3a6f-4e42-aff4-5ed5f7de2783, operand1=2, operand2=3]
pool-1-thread-1 processing request .... SumRequest [id=4bfa782a-c695-4de6-9593-cbfd357c3535, operand1=1, operand2=2]
pool-1-thread-3 processing request .... SumRequest [id=31ccd137-349a-4b7a-93b1-e51f62c11ba9, operand1=3, operand2=4]
pool-1-thread-5 processing request .... SumRequest [id=c653f469-6a6f-45b6-99f2-ed58620fd144, operand1=5, operand2=6]
main: Response = SumResponse [requestId=4bfa782a-c695-4de6-9593-cbfd357c3535, result=3]
main: Response = SumResponse [requestId=bca23e97-3a6f-4e42-aff4-5ed5f7de2783, result=5]
main: Response = SumResponse [requestId=31ccd137-349a-4b7a-93b1-e51f62c11ba9, result=7]
main: Response = SumResponse [requestId=36d95b35-09f0-4e93-99e4-715ea7cb33c9, result=9]
main: Response = SumResponse [requestId=c653f469-6a6f-45b6-99f2-ed58620fd144, result=11]

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Do you encounter blue faces or wrong colour displayed on the YouTube videos on your Ubuntu 12.04 box? If yes, I recommend you to install Flash-Aid which can solve the problem.



Open your Firefox and go to here to install the plugin. Once the plugin is installed, you can click on the icon on the right top hand corner to install the correct Flash.



The official wording of Flash-Aid :



Remove conflicting flash plugins from Ubuntu/Debian Linux systems, install the appropriate version according to system architecture and apply some tweaks to improve performance and fix common issues.



Thats all! See you.



UPDATED on May 23, 2012 :

If your problem is still there and you have nVidia display card with "libvdpau1" installed, you should follow the steps below to solve the problem.

sudo add-apt-repository ppa:tikhonov/misc

sudo apt-get update

sudo apt-get install libvdpau1

This solution is workable on Ubuntu 12.04 LTS with flashplugin-installer 11.2.202.235ubuntu0.12.04.1 but not with Flash-Aid 2.2.3.

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