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

Inputting Data - Changing information

Extracts from this document...


Report Task 3 ~ Further Data Entry and Output Considerations ~ Inputting Data Changing information Having well organised data will always lead to a higher level accuracy when being used by a human operator. When it is easy to see what data values are stored under there corresponding fields there is a much reduced risk of a human user accidentally entering incorrect data, or data into the wrong field. For example in my staff database there are clear data fields that identify what data should be entered under them, for instance the field name 'Phone Number' doesn't leave the user in any doubt as to if they are to enter there post code into it! Data is also easy to change: if you wanted to change the address for Fabio you could simply search for his name (using a query) then move along to the 'address' field and update the data. ...read more.


would be accepted. Verification can only be effectively done by humans as a computer system has no way to determine if data is correct. An example of verification is where two people enter exactly the same data and a computer system compares the two inputs and highlights any errors. Data verification exists in a primitive form, in that of Spell Checkers. Spell Checkers can scan documents and find any data that is not found in its dictionary. This is limited in several ways: The data we enter are not always found in the dictionary, for instance names or addresses. Furthermore data can also be incorrect even though it is spelt correctly. For instance 'there', 'they're' and 'their' are three correct spellings however each are pounced the same yet refer to three different things. System Outputs Hardware is another important consideration when producing any information system. I explore below options regarding printers and VDU's (Visual Display Units, sometimes known as monitors) ...read more.


CRT monitors are considerably cheaper than TFT, however they have depths usually exceeding 50cm, where as a TFT monitor will rarely exceed 2cm.TFT's also have some other clear advantages: they give of a negligible amount of hear and radiation and as they are crystal lit as apposed to filament lit they are a lot safer to users eyes during prolonged use. Both CRT and TFT monitors have several other important attributes that are not necessarily the same on all monitors, these are explored below: Refresh Rate: a number usually between 56 and 160 and measured and Hertz (Hz) this number determines the number of times per second the screen is redrawn - the higher the better performance can be expected. Maximum Resolution: This refers to the maximum number of pixel's then can be utilised on a monitor at any one time. This number is given in terms of the number of pixels vertically times the number horizontally. For example 1024x768. Dot Pitch: Possibly the least important, this number refers to the space in-between each pixel, usually 0.28-0.30 of a mm. Alistair Fenning :: GCSE ICT Coursework ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE ICT Systems and Application 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 GCSE ICT Systems and Application essays

  1. Explain the difference between primary and secondary sources of data, with examples.

    There are two main types of observation direct and participant. Direct observation is also known as overt which means that it is obvious and the observation is not hidden as every one knows that they are there watching, and identifies the reason why they are watching.

  2. ict applied coursework

    I believe that the printer helps me a lot in my daily life. Once I had printed out my coursework but I lost it by mistake so I just printed it out again which saved me time and was very helpful as I didn't had to do all the hard work again.

  1. System administration report

    It is essential though, if the network does not seem to be working, there is a backup server with IGS installed on for the hotel to use without any problems. One of the tasks for the system administrator and her department is the responsibility of the equipment such as hardware in a good condition.

  2. Chessington Motor Centre (CMC) Information Technology System

    Work will also be carried out at home on a stand alone PC with similar specifications to those mentioned at CMC. To aid the transfer of work between home and school a floppy disk will have to be used. If the size of the system and its documentation exceeds the

  1. Hospital Information System

    Every department and subsystems in an institution can be viewed basically as an information-processing agency. The administration can actively use these departments for monitoring and controlling the quality of patient care; in assessing of the performance of the medical staff; in keeping check on how some of the hospital's resources

  2. Data Validation and Verification

    Once they had finished it I would ask them to check over it to confirm that all the information is correct. If the surgery wasn't busy then I would instead ask them the question in the intend that they can answer the questions for me to put the answers directly in the online system.

  1. ICT Coursework (MarcoS)

    Can you access to the account anytime you want? 14. What's the annual net incoming in the company? 15. Do you work with one bank or more? 16. Does the company use one account or more? Analyze Current System * Who was interviewed and why * What are the

  2. The end user of my program is for the people applying for the insurance ...

    John Doyle: No, Thank You Me: Ok, can I ask what your company do now and what would you want them to do. Doyle: The company produce car insurance on the phone, what I would prefer is for the quote to be given straight after the details have been entered Me: Is this what you would like me to create?

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