Category: Old National 5

Homework for 3rd Nov 2014

  1. What is the number system used by computers? (1)
  2. State two advantages of using binary numbers rather than decimal numbers in a computer system. (2)
  3. The reserve price of a vase is £42·50. State how a real number such as 42·50 would be represented in the computer. (1)
  4. A program calculates the average rainfall for one week as 18.6mm. Describe how floating point representation is used to represent real numbers. (2)
  5. Convert the decimal number 13 into a binary number. (1)
  6. Convert the following binary numbers in to decimal (2)
    1. 00001011
    2. 10011111
  7. Convert the following decimal numbers into binary  (2)
    1. 63
    2. 193
  8. Convert the binary number 11011 into a decimal number. (1)
  9. State one reason why computer systems use binary numbers rather than decimal numbers. (1)
  10. Convert the decimal number 27 into an 8 bit binary number. (2)

Total 15

Dreamweaver Cheat Sheets

The Internet is full of tips and tricks for using Dreamweaver, it can be a little daunting to find the good stuff. Here is a search tip I use on google. Search for the package you are after followed by the word cheat sheet, a cheat sheet is a short (often 2 A4 page) document that crams in a lot of what you need to learn a package. Example Dreamweaver CS3 cheat sheet. However, this gives lots of pages that don’t have what we want. So we need to set the file type we want in this case we want a PDF (Adobe Acrobat) file

Dreamweaver CS3 cheat sheet /filetype:pdf

This will bring up a list of sites that have those documents on them, some website are wise to this trick and try and lure your in with false PDF files, so check the start of the link for a [PDF].

Here are a few I found

Although sometimes web sites can be useful too.