Computer hardware is a physical part of a computer that executes within the hardware. It is unlike computer software or data that can be frequently changed, modified or erased on a computer. Computer hardware is not frequently changed and so is stored in hardware devices such as read only memory (ROM) where it is not readily changed.

Most computer hardware is embedded and so is not visible to normal users. Below are the different types of hardware’s found in a computer.

Ø Motherboard: It is the central or primary circuit board making up a complex electronic system such as a computer. A motherboard is also known as a main board, logic board or system board.
Ø Central processing Unit: A CPU is the main component of a digital computer that interprets instructions and process data in computer programs.
Ø Random Access Memory: A RAM allows the stored data to be accessed in any order. RAM is considered as the main memory of the computer where the working area is used for displaying and manipulating data.
Ø Basic Input Output System: BIOS prepares the software programs to load, execute and control the computer.
Ø Power Supply: Power Supply supplies electrical energy to an output load or group of loads.
Ø Video Display Controller: It converts the logical representation of visual information into a signal that can be used as input for a display medium.
Ø Computer Bus: It is used to transfer data or power between computer components inside a computer or between computers.
Ø CD-ROM drive: It contains data accessible by a computer
Ø Floppy disk: It is a data storage device
Ø Zip Drive: It is a medium capacity removable disk storage system.
Ø Hard Disk: It is a non-volatile data storage system that stores data on a magnetic surface layered unto hard disk platters.  Read more...

As computer-related crimes become more prevalent, understanding the types of computer-related crimes provides law enforcement an insight for investigative strategies.

The first insight is knowing the types of computer crimes.

Computer as the Target

This computer crime includes theft of intellectual property. The offender accesses the operating program under the guise of the system’s manager. The intruder accesses the contents of computer files in the system through the trap door that permits access to systems should there be a human or technological problem.

Here, the offender uses the computer to obtain information or to damage operating programs while committing the following computer crimes:

* Theft of marketing information, like customer lists, pricing data, or marketing plans
* Blackmail based on information gained from computerized files, like the medical information, personal history, or sexual preference
* Sabotage of intellectual property, marketing, pricing, or personnel data
* Sabotage of operating systems and programs with the intent to impede a business or create chaos in a business operations
* Unlawful access to criminal justice and other government records
* Changing a criminal history, modifying want and warrant information
* Creating a driver’s license, passport, or another document for false identification
* Changing tax records or gaining access to intelligence files
* Techno-vandalism through unauthorized access to damage files or programs
* Techno-trespass violating the owner’s privacy as in criminal trespass  Read more...

Computers have continued to evolve since their inception decades ago and today we can definitely proclaim that we are living in a computer age. There are few facets of our lives that remain untouched by computers today and the technology continues to develop all the time. What is needed as a result are skilled professionals who are trained in designing, adapting, maintaining and implementing these new technologies and making our lives more productive as a result.

Computer training can be divided into a number of sub-specialties that include computer hardware, computer networking, computer software, and Web development. For those students who have an interest in math and science and show an aptitude for problem solving and analytical skills, a career in computers might be the right one for you. Working towards a career in computers can be done in several ways. You can opt for Associate, Bachelor, or Masters degree programs and / or complete various certifications and certificate programs. Some employers require specific certifications in addition to your degree while others may need only a certification or two. It is therefore sensible to research the jobs that you are interested in and find out what exactly is demanded from a potential job applicant. In general, there are three main fields of study that you can choose from a computer science degree, a computer networking and technology degree, and a computer programming degree.  Read more...

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Types of Door Hardware

Door hardware can be one of the more challenging parts of redecorating a room, or even just redecorating an individual door. In order to update the look of a door, one might opt for new hardware before considering the purchase of the completely new door. The hardware can make a big difference in the appearance of the door and can even make an older door blend better with your new décor arrangements.

Picking door hardware that will update the look of your door

One thing to consider before replacing a door is whether or not it is the door itself, or just the hardware that needs to be changed. If the hardware is the part that needs the update, this simple purchase can make a big difference on the look of the entire room the door occupies. Interior door hardware as well as exterior door hardware can take a beating because of its frequent use and handling. Picking hardware that has a good finish and has been constructed of quality materials is extremely important to ensure the life of the hardware. If the hardware is of premium quality, then the appearance will last for years.  Read more...