Computers

Define computer ? Explain its Charactetristics.

Data are discrete pieces of information that have no meaning on their own, and need CONTEXT to be converted into INFORMATION. For example, all the following are data : 3, Pittsburgh, Green.

As you can see, they don't really mean anything until you place them in context. Pittsburgh is a CITY, 3 is a NUMBER, and GREEN is a color.

It really depends on how hot the fire is... No really, burning a CD means that a laser is etching information on it. Most CD's are write once, meaning that you can etch(burn) info on the disk but when its full that's it. It cannot be reused. Re-writable disks are available that can be erased and written to again. So to answer your question, burning a disk in a CD drive will normally not damage it, but after you have 'burned ' what you want on it then the disk can only be used to access the info on it and cannot be burned again.

To start the computer is called Booting. Restarting the computer is (not surprisingly) called Rebooting.

This comes from the word 'bootstrap'. Which in turn, comes from the idea of pulling someone up by the bootstraps. A bootstrap program, is one that initiates other programs in sequence, in order to get the computer ready for use.

In early days of computer programming these sequences had to be started by an operator. Bootstrap code makes this chore automatic. The idea that one program starts another program, is like trying to lift yourself off the ground by your bootstraps. (Programmers have a sense of humor.)

There are 3 types of permanent storage, aka secondary storage, on a computer: # Hard Drive # CD # Floppy disk

The disadvantage of mainframes?

1. Cost of hardware

2. Special operating systems/software (more cost there, too).

You typically won't see a mainframe used unless some organization with really deep pockets has a mission-critical function that requires massive amounts of information to be processed, in a very reliable manner.

The Nez Perce tribe speak what's simply called the Nez Perce language. With only about 200 native speakers, it's considered an endangered language.

Libraries tend to use computers so that the people visiting can find books and determine if they are at their library location and where in the library its located. They also have computers in libraries to provide those without access to the internet at home a place to do just that.

A Kilobyte - is just over 1,000 bytes.

Since computers work in multiples of 2, a Kilobyte is 1024 bytes.

Before computers, we used typewriters for document processing, adding machines for mathematical computation and libraries for research. Since email did not exist, we had to use letters, telegrams, telex or the telephone for communicating with people at a distance.

The Processor (CPU)

Going to a local electronic store will help you to see the value of the computer with the price. Apple computers tend to have a high price tag, so a better suggestion would be a PC. These can be found at electronic stores like Best Buy, or can be found online.

Walmart has many laptops, but there is currently one on sale for $325 in a bundle with a case, printer, mouse, and router. It is a refurbished Compaq Presario XY871UA-ABA. It has a Celeron 900 processor and Windows 7 Home Premium.

64 bit OSes use special set of instructions as well as 64 bit memory space which is in principle is not supported by 32 bit processors.

(1) users (both institutions and individuals) should install antivirus software and firewalls on their computers; (2) users should not use their birthday, social security number, or phone number as passwords to their accounts;

The best deals on a computer stand can be found by first browsing your local newspaper and want ads for great sale prices or even previously used computer stands. Online shopping is another great way to find amazing deals on quality computer stands.

Red, Green and Blue - varying amounts of brightness are used to create over 65,000,000 colours.

The motherboard

Hardware refers to the physical components of a computer, for example,

Mouse- User interface Hardware

Processor- The 'brain' of the computer

Hard Drive- Stores data (your files and stuff)

Yes, and that "aux" line is usually for the CPU fan.

Information on business computer leasing could be found simply by asking for referrals from well known businesses in the local area. One could also check with the local Chamber of Commerce in the area for recommendations.

If the IP address is the one that is issued by the provider, then if you change it you cannot access internet. Only computers that have automatic IP address assigning option can change the configuration. In many countries it is illegal to change the configuration.