• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

ASCII is not art. It's a code.

Extracts from this document...

Introduction

Osman Salih L6H ASCII ASCII is not art. It's a code, a way of hiding things within a smaller thing. ASCII, the American Standard Code for Information Interchange. ASCII, was born at the dawn of the modern computer age (1958-1965). Character codes are a form of information compression, to accommodate the extreme lack of bandwidth available in paper, ink, or the tapping armature of a telegraph. The concept of characters and character-codes in ASCII is utterly inseparable from our Western, roman alphabet culture. You need the "one time pad" of Western culture to understand it or make use of it at all. Background The history of electrical or electronic communications really means the history of serial communications. ...read more.

Middle

are continuously variable (reasonably called "analog", as the vibrations in an earphone is an analogy, a flawed copy, of the vibrations your voice makes in a microphone). The fantastic advantage of discrete symbolic communications is that the meaning can be modified mechanically. A small and silly example: every time you write "PLEASE SEND ME 9 FRUITCAKES" a machine transporting your email could change it to "PLEASE SEND ME 900 FRUITCAKES". (It also helps that there are so many layers of mediation you can't tell if a person or a machine wrote the symbols "9", "0", "0", etc.) This is because "meaning" is accessible; it is agreed that "9" is a number, a quantity. The meaning in the spoken-sound "nine" is quite well hidden to machines, so far. Definitions. ...read more.

Conclusion

Though usually abstract, and not existing physically, a code table is a list of codes along with the characters they represent, such as "A = 1", "B = 2", etc. * CHARACTER: The concept behind the little marks on paper or screen. The "A-ness" behind the letter "A", for example, or "&" ampersand, which we assume means "and" or "plus". How you actually translate it doesn't matter, eg. could be hand-written, machine printed, etc. * FUNCTION CODE: A "character" that, instead of causing a mark to be made on paper or screen, causes the rendering machinery to do something, such as move the paper, ring a bell, etc. These function codes/control characters are given mnemonic names that distinguish them from normal characters and hint at what their function is. For example the character that rings the bell is named BEL. * * * * ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Computer Science section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Computer Science essays

  1. Data communications and neetworks

    And therefore is not continuous. This is because the data is consisting of separate states, which are on or off. Sine Wave This type of wave has two properties a Amplitude & Frequency, the amplitude represents the strength of

  2. The Von Neumann Machine

    a memory write operation � Reset clears all internal registers and starts executing instructions from a pre-defines address (similar to switching off and on again) The purpose of the control bus is to transmit command, timing and specific status information between system components.

  1. Logue's Homer, War Music "The theme of respect for the warrior code"

    not trust his fellow warrior Paris, but his suspicion is justified as Paris betrayed his trust when he was a guest at Menelaos' home nearly ten years before this. However any doubts about Menelaos' respect for the warrior code are removed as he calls for the involvement of Paris' father, the great Trojan king; Priam, in the conflict.

  2. Computers - History and Development

    Charles Xavier Thomas de Colmar, a Frenchman, invented a machine that could perform the four basic arithmetic functions. Colmar's mechanical calculator, the arithometer, presented a more practical approach to computing because it could add, subtract, multiply and divide. With its enhanced versatility, the arithometer was widely used up until the First World War.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work