Thursday, 26 September 2013

How Cpu's Work

A CPU works by something giving it a input, it then uses two things rom and ram it uses the ram to get the instructions it then goes to rom to know how to do it, then it gives whatever the instruction was to the output window. it then keeps doing that cycle over and over again but it does it incredibly fast.

Monday, 23 September 2013

Computing

Today we practiced some exam style questions, and peer marked the answers. After that we played a game of taboo, which my team won. Finally we looked inside a computer and looked at all the different parts.

Thursday, 12 September 2013

It failures

 A good example of a IT failure is a fault in a automatic stock trading software cost Knight Capital a reported $440m. The software was based on an incorrect algorithm which bought stocks at the market price and then sold them seconds later at the bid price which was a few cents less. The exercise lasted for 45 minutes and the rapid trades pushed the market price up creating a larger spread between the market price and the bid price making the problem worse

computer systems

A computer system is a collection of parts which process inputs to make outputs, it can also be programmable. A good example of a embedded computer system