IGCSE IT Revision

Central processing unit

Random Access Memory (RAM)

Read-Only Memory (ROM)

What Are Input Devices?

What Are Output Devices?

What is an Operating System?

Graphical User Interface (GUI)

Command Line Interface (CLI)

Mainframe Computer

Integers

Peripheral Devices

Boolean

Numeric Data

Alphanumeric (Text) Data

What is a Record

What is Systems Analysis?

What is a Microprocessor?

What is Hacking?

What is Malware?

What is a Computer Virus?

What is Software Copyright?

Phishing

Pharming

Real Numbers

Currency

Percentage

Date and Time Data

Flat-File Databases

Relational Databases

Internet Banking

Batch Processing

Online Processing