1. OCR GCSE (9-1) Computer Science (J276)
(01) Computer Systems L1

2. 1.5 hour written exam paper;
01 Computer Systems
Remember….
In summer 2018:
1.5 hour written exam paper;
worth 80 marks or 40% of the qualification;
No calculators allowed.

3. Learning Objective: 1.1 System Architecture
to know what a computer system is (all);
to be able to define a computer system* (all);
to understand the architecture of a computer system (most).
We are going to spend the next 3 lessons looking at the Fundamentals of Computer Systems.

4. Popcorn Maker How does it work?
A computer system is made up of hardware and software. Hardware is any physical component that
makes up the computer. Software is any program that runs on the computer.
How does it work?

5. 1.1 System Architecture Computers systems are all around us. They
are not just the PCs on the desk but include
mobile phones, cash machines

6. 1.1 System Architecture
Definition: A Computer System is a combination of hardware and software components that allow input, processing and output of data.

7. 1.1 System Architecture
Draw the table below into your exercise books. State how these systems might work.
Input
Process
Output
Popcorn Machine
Holiday Booking
ATM/cash point
Washing Machine
Add 3 of your own

8. 1.1 System Architecture
Homework - Due next lesson:
Learn the keywords and their definitions on the handout for a short test next lesson.