Computer Science & Technology

Classification of Computer

2011-12-23T02:03:00.000-08:00

Computers can be generally classified by size and power as follows, though there is considerable overlap:
personal computer : A small, single-user computer based on a microprocessor. In addition to the microprocessor, a personal computer has a keyboard for entering data, a monitor for displaying information, and a storage device for saving data.
workstation : A powerful, single-user computer. A workstation is like a personal computer, but it has a more powerful microprocessor and a higher-quality monitor.
minicomputer : A multi-user computer capable of supporting from 10 to hundreds of users simultaneously.
mainframe : A powerful multi-user computer capable of supporting many hundreds or thousands of users simultaneously.
supercomputer : An extremely fast computer that can perform hundreds of millions of instructions per second.

What is Modern Computer

2011-12-23T01:45:00.000-08:00

Modern computers are electronic and digital. The actual machinery -- wires, transistors, and circuits -- is called hardware; the instructions and data are called software.

All general-purpose computers require the following hardware components:
memory : Enables a computer to store, at least temporarily, data and programs.
mass storage device : Allows a computer to permanently retain large amounts of data. Common mass storage devices include disk drives and tape drives.
input device : Usually a keyboard and mouse, the input device is the conduit through which data and instructions enter a computer.
output device : A display screen, printer, or other device that lets you see what the computer has accomplished.
central processing unit (CPU): The heart of the computer, this is the component that actually executes instructions.

In addition to these components, many others make it possible for the basic components to work together efficiently. For example, every computer requires a bus that transmits data from one part of the computer to another.

Computer hardware defination and introduction to PC hardware

2011-12-22T11:28:00.000-08:00

All the elements that go together to make up a PC fall into one of two categories, hardware or software. This section is about hardware, the stuff upon which software runs.

One of the definitions of 'hardware' according to Webster's dictionary is 'major items of equipment or their components used for a particular purpose'.

Everything you can see and touch in your PC is hardware. This following list represents a basic set of hardware found in most PCs.
For more information on these components just click one.

PC Case
Motherboard
Power Supply
Hard Disk Drive (HDD)
Floppy Disk Drive (FDD)
Compact Disk Drive (CDD)
Digital Video Disk drive (DVD)
Monitors (CRT and LCD)
Keyboard
Mouse
Audio
Cables & Wires

Computer science and technology has long been known as a great field to obtain into

2011-12-22T11:18:00.000-08:00

Computer science and data technology has long been known as a great field to obtain into, but lately there has been a rumor going around that the industry is in a slump, causing fewer students to enroll in a computer science degree program. Unfortunately, the rumor isn’t at all true, and students are getting turned away from a field they are thinking about for no reason: The technology industry is nonetheless booming, nonetheless producing lots of new jobs every day, and nonetheless a great field in which to function.

Here are just a few reasons why you ought to still get that computer science degree and pursue your dream career:

Technology-related jobs are expanding at a phenomenal rate. Many students in the United States worry that the computer science industry is short-lived, because so several corporations are outsourcing technical support and other services to foreign countries such as India. The truth is, although, that the IT industry within the United States is growing far faster than the outsourcing trend. Many a lot more computer science jobs are becoming created every year than those being eliminated in favor of outsourcing.

A technological world means job security. Let’s face it; we’re now a lot more dependent on technology than ever. Common sense, then, should tell us that technological jobs couldn’t possibly be decreasing, when technology itself is on the rise! As a lot more and a lot more of our life is computerized, far more and far more IT jobs will probably be created to support and preserve our accustomed life-style. This means that a computer science degree delivers job security — your particular specialty will always be in demand.
Enrollment in computer science degree programs is down. Unfortunately, numerous students have taken to heart that computer science is a bad field to obtain into, and as a result fewer students are enrolling in computer science degree programs. Since the IT industry is in fact expanding within the United States, the result is that the students currently enrolled in computer science programs will have much less competition entering the workforce when they graduate.

Computer science jobs are just plain fun. Computers are a hobby and a passion for many individuals. In case you love working with computers and technology, don’t be persuaded to pick another career path by the rumors that It’s a doomed field within the United States. The truth is, of course, that the industry is still booming as a lot as, or even much more than ever, but it’s about much more than just that. How considerably is it worth to you to have a job you love? Numerous American adults never encounter this satisfaction; so don’t turn away from your dream just because somebody tells you the industry is failing, particularly when they are wrong.

Despite what the rumor mills must say, computer and technology related jobs nonetheless have a lot going for them, making a computer science degree a smart choice for any student.Get A Computer Science DegreeComputer Science degrees are offered at hundreds, if not thousands of colleges across the country for an excellent reason; the demand for computer experts has never been higher. In fact, the need to have for computer scientists will continue to rise by way of no less than 2015 according to the United State Department of Labor’s 2006 report on career growth.

The history of computer

2011-12-09T11:30:00.000-08:00

This is a searchable directory about the history of computers, computing and a timeline of the history of computers and early calculating machines has been included. Our timeline includes developments in the 1600's and their impact on computing. The development of the modern day computer was the result of advances in technologies and man's need to quantify. (The abacus was one of the first counting machines. Calculating machines were sold commercially before the advent of steel manufacturing technologies. Papyrus was something to write on, before we had paper. Writing was a way to record mathematical calculations.) This history of computers site includes the names of early pioneers of math and computing and links to related sites for further study. A new "Timeline of the History of Computers and Related Technologies" has been added. This site was designed to be used by students assigned topics about the history of computers and computing. Original articles are footnoted and related links are included. One important purpose of this Web page, is to debunk myths some people create, such as "we have computers because of the military" (Not true). We have computers because man wanted to quantify as early as the ancient Chinese Dynasties, when they created the abacus and used it for calculating, and adding and subtracting in particular... Babbage and Lovelace were "programming" machines as early as the 1800's before any military computer in this country. 1801 was the creation of the Jacquard loom which used "punch cards". Cathode Ray Tubes (CRTs) have been around since 1885 and the US gov't first used a computer in the 1950's. Great Britain's COLOSSUS was developed before the ENGIGMA, so people trying to perpetuate the importance of the US military in the development of computer technologies is doing a disservice to students. Electronics and related computer development, and the invention of the transistor were all independent of military intent. If anything, even the totalisator machines were created for statistical purposes and have been used for horse racing, not rocket science. Military computers did not have integrated circuits like PC computer chips. The military also had old computers Commodore was old no tubes in commodore, that was different technology altogether than a military computer with vacuum tubes, mechanical relays that was hot stuff in that age.

Definition of a computer

2011-12-09T10:08:00.000-08:00

A programmable machine. The two principal characteristics of a computer are:
It responds to a specific set of instructions in a well-defined manner.
It can execute a prerecorded list of instructions (a program).