Teaching Kids Programming – What is a Computer Database? A Quick Introduction

Teaching Kids Programming: Videos on Data Structures and Algorithms

What is a Database? A Quick Introduction to Computer Database

In a simple term: A Database is a software we store the data in an organized way such that we can store, retrieve, and manage the data more efficiently and effectively.

floppy-disk-and-ram

Here are a few types of storage: RAM (Random Access Memory), ROM (Read Only Memory), and Floppy Disk (1.44 MB)

database

The RAM is a short term memory when computers are switched off or rebooted, the data stored on it are gone.

The ROM is a read only persistent storage. Many 8-bit game (Nintendo Game Cartridge) are shipped on the ROMs.

The Floppy Disk is an old techology that has capacity of 1.44 MB. It is a long term memory for computers ad the data is persistent and can be retrieved even when computers are switched off and powered back on.

Data are stored in database electronically on the storage. Nowadays, the Hard drive (HDD, mechanical) or Solid State Drive (SSD) are more dominating. We can Select, Update (Insert a new Record or Delete an existing record), Manage the data (e.g. Duplicate, Backup, Manage users permissions, add a new user who can access the data) in the database.

In the following lessons, we will learn the RDMS (Relational Database System) and the SQL (Structured Query Language).

–EOF (The Ultimate Computing & Technology Blog) —

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