Computing!

Hardware & Software

Inputs & Outputs

Health and safety issues

Advantages & Disadvantages of Cloud Based software

Advantages:

Disadvantages

It saves automatically

It is easy to access on different devices

Hardware

Software

Software tells the computer what to do but you can't touch it

Hardware is something that you can touch are a physical part of a computer.

Keyboard

Mouse

Motherboard

Graphics card

Microsoft Windows

Android

macOS

Inputs

Outputs

Speakers

Headphones

Inputs and Hardware are the same things because you have to plug in all of the Hardware things for them to work (except for wireless things).

Digital camera

Outputs are things that you have to do on the computer and then it will come out of something e.g. a picture out of a printer

Music from earphones and headphones

Both

Wireless keyboards

Joystick

CD

Modem

Touch screen

DVD

Historical people in computing

You can get DVT (Deep Vein Thrombosis) which is when you sit still for a long period of time and the blood circulation is cut off.

You can get stressed because if you don't understand computers you can get stressed or you might find it increasingly hard to separate your home and work life.

Apps

You can get backache and neck pain from sitting in an awkward position.

You have to have wifi/internet connection to access them

How are algorithms presented?

Input/Output: image :

Process: image

Start/Finish: image

Question: image

The people you share it to can edit it when you don't want them to.

Charles Babbage

He invented the first computer

He basically made a big calculator called the Difference Machine / Engine.

Tim Burners-Lee

He invented the World Wide Web (www.) NOT the internet.

Konrad Zuse

He invented the modern computer

computer manufacturers

Short and Long range signals

dell

sony

Short range

Long range

Bluetooth

NFC

Infrared

lenovo

apple (imac)

WiFi

samsung

acer

4G

file types

png (image)

MP3 (music-audio)

.doc (document)

PDF- document/image (can't type on it but can draw)

Malware

What is malware?

Malware is software that is designed to damage and destroy computers and computer systems.

Examples of malware

Viruses, worms, Trojan viruses, spyware, adware, and ransomware

Malware is short for “malicious software.”

What is Phishing?

Phishing is a type of online scam where people impersonate organizations via email, text message, advertisement or other means in order to steal private and personal information

Key elements in the History of Computing

1642: Calculator

1936: First computer

1868: Keyboard

1964: The Computer Mouse

1981: Portable computers

Different types of ciphers

Pig-pen cipher

Caesar cipher

image

image

Inside a computer system

ROM

Hard disk drive

CPU

RAM

Motherboard