Category Archives: 6. External Sites

Binary 2’s Complement

I posted on this last year, I don’t feel the need to go back over it. However, if you would like me to give another full post please just ask.

Remember for 8 bit 2’s complement the column headers are -128 64 32 16 8 4 2 1

The homework for tonight is to convert the following to binary using 2’s complement, the answers should be in Bytes so either 8 or 16 bits.

  1. 397
  2. -45
  3. 128
  4. -120
  5. -13
  6. 0
  7. 1013
  8. -92
  9. -100
  10. -3

Have fun

Digital sources of information.

All of the class have been given a login and password for the following sites. I have verified that each pupil’s login details work within the class, they have all assured me they have tested these from home.

We have been using Glow within the class this year and I have uploaded all the course notes, past papers, past course works & revision materials to the various Glow areas. All pupils are encouraged to contribute to the Glow forum & blog for the subject. Scholar has its on discussion board which is staffed by Scholar approved teachers & lecturers. Materials and quizzes can also be found on the school’s website and a copy can be lifted directly from the school’s server using a flash drive.

This term has seen the introduction of Glow mail, the pupils can use this to send messages directly to my Glow inbox. Details are given within the Glow groups.

Hopefully the pupils will make full use of these digital resources; usage stats show a slow but steady uptake.

New Logo

So a new theme requires a new logo. I have put some links to sites in other blog posts, check twitter. What can you come up with? you have a week to submit your finished logo before I go with something like this.