Lesson Objectives

•All of you will able to define what a computer is and give examples of both hardware and software.

•Most of you will be able to explain an input and an output and give examples.

•Some of you will begin to understand what a Central Processing Unit (CPU) is.

Guide to presentation

This pencil means you are to complete an activity available from Moodle on a different worksheet.

10 mins

A rough guide to how long you spend on an activity is given on specific slides.

Collaberation with other members of the course will occur when gold links are seen.

What is a computer?

On Moodle, post on the forum what you think

a computer is. You will be able to see what

other people on the course think at this time.

10 mins

So what was actually happening in the picture?

This was taken in the 1950s .

It is referred to as human “computers”

The women are using a special type of calculator and the man on

the left is looking up numbers on a slider.

How close were you to actually figuring out what was going on?

Dictionary Definition of a Computer:

An electronic device which is capable of receiving information

(data) in a particular form and of performing a sequence of

operations in accordance with a predetermined but variable

set of procedural instructions (program) to produce a result in

the form of information or signals. (Oxford Dictionary)

Computer Systems: Hardware & Software

• Example of hardware:

Computers are made up of 2 different things;

Hardware: physical components of a computer

Software : a collection of computer data and

instructions • Example of software:

Now you can see the difference between hardware and software, please complete Activity sheet one found on Moodle.

10 mins

Computer Systems: Input & Output

Computers work via a procedure known as;

Complete the worksheet on Moodle to show you can identify the different outputs and inputs.

10 mins

Input Process Output

Keyboards: the buttons act as input

Each button represents a symbol, letter or number. Buttons are

pressed and the outcome is text on the screen.

Extension task: Central Processing Unit (CPU)

This is a Central Processing

Unit. The main purpose for this

is to, as the name suggests,

processes data into usable

information for the computer

and for you.

Create a stormboard account at: http://stormboard.com/ Once you have created an account the details below will allow you to access the board I would like you to complete. The ID is: 70908 The Key is: mark9667 Complete research into CPU and make on stormboard to show what you have found out. This will be useful in the next lesson.

Extension task: Central Processing Unit (CPU)

Plenary

Complete the quiz on Moodle to show what you have understood.

Well done that is lesson one completed.