2-OS-Lessons-2

1. What has Jacquard's loom got to do with computers?

2. What was the job of computer operators?

3. What company was the largest manufacturer of computers?

4. What replaced punch cards?

Discuss with your partner

Open Ended

1. What has Jacquard's loom got to do with computers?

The Jacquard loom used instructions on Punch cards and was able to quickly manufacture complex patterns in cloth

Open Ended

1. What was the job of computer operators?

     It was the job of an Operator to feed in the batch of cards, correct jams and schedule when the next program could be run

Open Ended

1. What company was the largest manufacturer of computers?

The biggest company that used punch cards was International Business Machines, now known by the abbreviation  IBM

Open Ended

1. What replaced punch cards?

   Today, the role of punch cards for storing  programs and data has been taken over by devices such as disks, cloud storage, and USB memory

We’ll be looking at:

• How computers worked before the OS

• The emergence of the OS

Learning Objectives

​1 min

Loom instructions - Application

Before…

Loom instructions - Application

Loom - Computer

Before…

Loom instructions - Application

Loom - Computer

Specific Output

(e.g. woven pattern)

Before…

Loom instructions - Application

Loom - Computer

Specific Output

(e.g. woven pattern)

Before…

So, we started with
instructions stored on

punch cards and written

for a particular loom.

Loom instructions - Application

Loom - Computer

Specific Output

(e.g. woven pattern)

Before…

So, we started with
instructions stored on

punch cards and written

for a particular loom.

If we changed the loom, we’d
need to write a new program

(create new punch cards).

Punch Cards - Application

Then…

Punch Cards - Application

Computer

Then…

Punch Cards - Application

Computer

Specific Output

(e.g. multiplication)

Then…

Punch Cards - Application

Computer

Specific Output

(e.g. multiplication)

Then…

Then, we had

instructions stored on

punch cards and written
for particular hardware.

Punch Cards - Application

Computer

Specific Output

(e.g. multiplication)

Then…

Then, we had

instructions stored on

punch cards and written
for particular hardware.

If we changed the hardware, we’d

need to write a new program

(create new punch cards).

2. The emergence of the

Operating System

From Operator

From Operator

To Operating System

From Operator

To Operating System

Gary Kildall (1942-1994) created
the first microcomputer Operating

System (CP/M) in the 1970s.

Control Program for Microcomputers

1min30

What is an operating system?

An operating system is the most important software that runs on a computer.

It manages the computer's memory and processes, as well as all of its

software and hardware.

It also allows you to communicate with the computer without knowing how to

speak the computer's language.

Without an operating system, a computer is useless.

Logos to draw

Draw

Draw one of these Logos

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Multiple Choice

What is the role of an operating system?

• Manages computer's memory and processes

• Allows communication with the computer without knowing its language

• Manages software and hardware

• All of the above

Multiple Choice

Who created the first microcomputer Operating System (CP/M)?

• Jacquard

• Gary Kildall

• Charles Babbage

• Alan Turing

Multiple Choice

What replaced punch cards as a storage medium?

• Fast disks

• Microcomputers

• CP/M

• Hardware

Multiple Choice

What does the operating system take care of?

• Different hardware

• Computer's memory and processes

• Software and hardware

• Communication with the computer

Multiple Choice

Who was the largest manufacturer of computers?

• Jacquard

• Gary Kildall

• Charles Babbage

• Alan Turing

Multiple Choice

What is the function of the application in the operating system?

• Communicates with the user

• Communicates with the hardware

• Manages computer's memory and processes

• Allows communication with the computer

Multiple Choice

What does the user communicate with in the operating system?

• The application

• The hardware

• The operating system

• The software

The End.