Computers

In short form, by means of a program, or part of a program, the way everything else happens in a computer.

Programmers and other engineers write code that looks at the keyboard for inputs from the operator. Various parts of various programs interpret the keyboard commands different ways, since you the operator may be hitting a key for different things, to exit the program, to start printing, to save the file, etc.

For your question, you have to assume that a text program like MS Word is operating. Word is waiting for you to enter information from the keyboard (it's in insert mode). As each key is hit, Word calculated what the key means and decides what key you hit, for example the "W" key.

Word looks up the letter in a table and finds the ASCII equivalent decimal number to the letter and stores this number in a memory buffer. As you hit the "o" "r" "d" keys MS Word looks each letter up and stores the decimal number in the buffer.

Now there are 4 numbers stored in sequential locations in a buffer.

Now let's suppose that you tell Word to save and exit.

The computer program will take all of the text that it has in various memory locations and writes it to disk, so at a later time you can load that digital info back into Word, display it on the screen and allow you to type in more words.

That was the somewhat less simple explanation. Can't get more complicated without writing a few textbooks.

Each key on the keyboard is assigned a number. Hold down your alt key while typing in a number from 1-255 in notepad.

that not tranlate to digital information

First it needs an encoder that converts information from what we call decimal form to binary, and then in order for the information to appear on the screen, you need a decoder that takes binary and converts it back to decimal.

• Medical laboratories around the world use computer technology to test thousands of different compounds for traits that could one day turn them into life-saving drugs. Along with the testing, that number can also be sorted and analyzed in the time it would take a technician to do only a few.

• Computer simulations are critical to the advancement of science, and computer technology can allow medical lab personnel to run thousands of different simulations in a matter of hours. These simulations are used for everything from predicting the effectiveness of a drug to determining the best possible course of treatment for a patient.

• Taking blood samples and analyzing the results is an important part of working in a medical lab, and computers do much of the work there as well. Sophisticated computer technology can quickly determine whether the levels of proteins, amino acids, sugars and other elements are within normal ranges. These same computers can be used to generate results that are sent back to the patient's physician.

• Research is an essential part of lab work, and computer technology can be used to aggregate tens of thousands of individual records and present them in a usable format. From patient outcomes to the results of drug testing, this information can be used in many ways.

• Keeping patient data accurate and up-to-date is essential if an effective treatment plan is to be followed. The computer equipment used in medical labs can keep track of patient data and make sure that all treatment options are available.

You can use a CD for lots of things, here are a few of the things you can do...

• Used for playing music
• Burn you own music to it
• use it as a USB flash drive for file storage
• Use it to put home movies on to watch
• Install an Operating System like ubuntu on
• run an operating system