CENTRAL PROCESSING UNIT

Stands for "Central Processing Unit." This is the pretty much the brain of your computer. It processes everything from basic instructions to complex stuff. Any time something needs to be computed, it gets sent to the CPU. Every day, it's compute this, compute that, you'd think the CPU would need a break after awhile. But no, it just keeps on processing. The CPU can also be referred to simply as the processor.

Explain the difference between proprietary standards and open standards

Both proprietary and open standards are made by developers or inventors. Yet proprietary standards are owned by a company and cannot be copied by other companies, a bit like copyright. Open standards are available to everyone and can be edited by anyone to make it better, or possibly make it worse.

Considerations

Ethical considerations:

These are privacy and security parts of the computing system.

Environmental considerations:

Computers need to be disposed of correctly and need to have a low power consumption.

Legal considerations:

DON'T HACK

STANDARDS

Proprietary standards:

Standards owned by a company

Industry standards:

Standards that are agreed across the industry.

De facto standards:

Standards developed through common usage.

Open standards:

They can be edited by the users.

Faults in computer systems

A fault in 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.

WASHING MACHINES

"WASHING CLOTHES USE TO BE DONE BY HAND BEFORE EVERYONE GOT INTO THE TECH SPIRIT"

-JACK BAKER 

COMPUTER SYSTEM EXAMPLES:

• DESKTOP COMPUTER
• LAPTOP
• PDA
• MAINFRAME
• NETWORKS
• GAMES CONSOLES
• DIGITAL WATCH
• PHONE
• TABLET
• PRINTER
• WASHING MACHINE

A Computer System

A computer system is one that is able to take a set of inputs, process them and create a set of outputs. This is done by a combination of hardware and software.