Computer Systems

Data Representation

By the end of the video you will be able to ...

• explain how how whole and decimal numbers are stored in a computer system. 

• convert whole numbers to/from binary

• describe how test is represented in binary

• describe how Vector & Bitmapped Graphics are stored. 

Computer Structure

By the end of this video you will be able too describe the basic computer architecture components and how they are linked together: processors, memory locations & buses. 

Not covered in this video is interpreters and compilers. Below is a clip from Episode 6 of Bit & Bytes, first broadcast in 1983. It might be 40 years old, but it really good. 

🌐 Interpreters & Compilers (Bits and Bytes, Episode 6)

Environment & Security

By the end of this video you will be able to ... 

• describe the energy use of computer systems, the implications on the environment and how these could be reduced. 

• describe the role of firewalls

• describe the use made of encryption in electronic communication.