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Showing posts with the label systems.

Home Security Systems Go High Tech

It should be no surprise that home security systems are on the cutting edge of technology. With new gadgets appearing on the market daily, the security industry is quick to incorporate the technology. The result is some very sophisticated security systems that are integrated with everyday devices such as smart phones. Wireless While homeowners with new homes usually have a hard-wired system in place, those with older homes are opting for wireless options. Wireless home security systems offer many advantages. With a wireless keypad, a homeowner can control their system from outside their home. This keypad can look similar to a key fob for a car. Or, more commonly, it is connected to a homeowner’s phone. Either way, wireless options allow the homeowner to control their system without needing to be inside their house. Wireless systems also allow the homeowner to easily add more security devices without having to install additional wiring – a new wireless component can take minu...

Transaction Processing in Database Management Systems

Transaction processing within the parlance of data base management systems is when SQL statements that are required to be executed on the database are grouped into units of transactions. This ensures that a single transaction executes a whole unit or does not execute at all. Let us for example take a banking transaction during which X transfers some money to Y. There should be a debit of X’s account and a corresponding credit into Y’s account. Imagine if there is a fatality during the transaction where the transaction which increases the bank balance of Y cannot be completed due to a disk crash or due to a power failure etc., in such a case the system will cease to be consistent as it has completed a transaction namely a debit, but did not complete the corresponding credit transaction due to a power failure or a hard disk crash. Let us also consider the alternative where both these database operations are bundled into a transaction, so either both execute together or both do...

Conversion of Access Database Systems to Visual Basic Dot NET and SQL Server

Microsoft Access is showing its age. Most of the techniques (File Server, VBA, DAO, Jet Database Engine, etc) hark back 20 or more years. Microsoft will continue supporting VBA for many years to come, but the programming emphasis is rapidly changing in favour of Visual Basic.Net and SQL Server. For company administration systems, the combination of a VB.Net FrontEnd with an SQL Server BackEnd database is the ideal. Visual Basic is business rules oriented and SQL Server is efficient and easy to maintain. VB.Net Upgrade Conversion Reasons The reasons for an upgrade from Microsoft Access to Visual Basic.Net and an SQL Server database are: A strategic corporate decision A worry about the future of Visual Basic for Applications (VBA) The difficulty and cost in supporting obsolete and error ridden code The difficulty and cost in supporting code written by amateurs without regard to standards The need to replace an inefficient administration system that just “grew like Topsy” The n...

The Lowdown on Content Management Systems

What is a content management system? Well, at its most basic, a content management system (CMS) is any system that provides an easy to use and access repository for content that can be used, edited and shared among a predetermined group of people. Digital content management systems can restrict access according to user settings; so, some people may only be able to view content, others can share it, others can add to it, and others can edit it, etc. There are three basic types: 1) Enterprise CMS: developed for a specific business enterprise according to unique requirements. Typically they relate to the capture, storage, management, and safety of information. The aim is to make information easily accessible to those who need it. Clearance levels can be put in place to prevent people from accessing information they are not supposed to. 2) Component CMS: if enterprise systems operate on a macro level then component systems operate on a micro level. They break up documents into their compon...

What Is Computer Software, Application Software And Systems Software?

A computer’s software refers to a program (or a group of programs) which give a computer instructions on what to do and how to operate. Software programs can provide one main task, or multiple main tasks. As an example, a program designed to edit digital photographs has one key task (i.e. to allow for editing of photos) – naturally it would have numerous sub-tasks though (i.e. red eye removal, color correction features, resizing and cropping/cutting of an image). On the other hand, a computer’s operating system (a complex piece of software which basically handles and runs the entire computer) would carry out many main tasks – for example handling input and output (i.e. the user typing in with a keyword, or audio coming out of speakers), memory allocation, managing the computer’s hardware components (these are the electrical components which power a computer) and much more. Software can be grouped into roughly two groups: application software and systems ...

2022 أنظمة التشغيل الآلي للمنزل

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أنظمة التشغيل الآلي للمنزل أنظمة التشغيل الآلي للمنزل ، توفر الراحة والرفاهية في عالم اليوم سريع الخطى ، يجد الناس أنه من المستحيل إدارة منازلهم بكفاءة. حتى أن بعض الناس يجدون أنفسهم في عالم منهك حيث كل شيء يبدو روتينيًا ومملًا. عليك أن تفكر في أن الناس اليوم ليس لديهم حتى الوقت للخروج والاستمتاع بأنفسهم. هذا هو السبب في أن الكثير من الناس يفكرون الآن في توفير المزيد من الوقت لأنفسهم للاسترخاء والاستمتاع بمنازلهم من خلال الحصول على أنظمة أتمتة منزلية مثبتة في منازلهم. قد يبدو الأمر وكأنه خرج من فيلم هوليوود مستقبلي ، لكن أنظمة التشغيل الآلي للمنزل متاحة للغاية اليوم. بفضل تقدم الكمبيوتر وتكنولوجيا الإنترنت ، أصبحت أنظمة التشغيل الآلي للمنزل التي تشاهدها غالبًا في الأفلام متاحة الآن على نطاق واسع. على الرغم من أن هذه التكنولوجيا لا تزال في مهدها ، إلا أنها أصبحت الآن أكثر شيوعًا ، خاصة للأشخاص الذين يعيشون أسلوب حياة محمومًا وكذلك الأشخاص الذين يمكنهم تحمل تكاليفها. عليك أن تفكر في حقيقة أنه نظرًا لتكامل أنظمة التشغيل الآلي للمنزل مع أحدث التقنيات وأحدث التقنيات في أنظمة الكمبيوتر ، علي...