HL IB Comp Sci (all definitions)

A collection of flashcards covering key terms and definitions related to computer systems and programming concepts.

System

A collection of interrelated components that work together to achieve a specific goal by taking inputs, processing them, and producing outputs.

Legacy System

An outdated computer system, software, or hardware still in use, often difficult to maintain or integrate with newer technologies.

Data Migration

The process of transferring data between different storage systems, formats, or computer systems, while preserving data integrity and usability.

Change Management

A structured approach to transitioning individuals, teams, and organizations to a desired future state to ensure system changes are implemented smoothly and successfully.

Pilot Implementation

The deployment of a new system to a limited part of the organization to test its functionality before a full-scale rollout.

Testing

The process of executing a system to identify any bugs or errors and to verify that it meets specified requirements before deployment.

CPU (Central Processing Unit)

The primary component of a computer that interprets and executes instructions by performing arithmetic, logic, control, and input/output operations.

RAM (Random Access Memory)

Volatile memory that temporarily holds data and instructions currently being processed; it is erased when the device is powered off.

VPN (Virtual Private Network)

A secure network connection established over a public network, encrypting data and masking the user's IP address for privacy and security.

Algorithm

A finite, ordered set of well-defined instructions used to solve a problem or perform a computation.

SQL (Structured Query Language)

A standardized programming language used to manage, manipulate, and query data stored in relational databases.

Data Integrity

The accuracy, consistency, and reliability of data over its entire lifecycle, ensuring that data is not altered inappropriately during storage, retrieval, or transmission.