Category: Information Technology

CSEC IT Notes

SECTION 1 – FUNDAMENTALS OF HARDWARE AND SOFTWARE Lesson 1-1: Basic Computer Components Lesson 1-2: Classification of Hardware Devices Lesson 1-3: Input Devices Lesson 1-4: Biometric Systems, Sensors and Digital Cameras Lesson 1-5: Output Devices Lesson 1-6: Memory Lesson 1-7: Secondary Storage Lesson 1-8: Data Representation Lesson 1-9: Binary Conversions Lesson 1-10: Binary Addition and…...

CSEC Study Guide 1

In this study guide series, you will be given a PDF file which will contain concise revisions on different topics in different subjects. You can choose whether or not to download the particular study guide based on the summary provided in the body of the post here. All the subjects below are in one file…...

Measurement of Data

Units of storage The capacity of memory or a storage medium is measured in bytes (unit of storage). A byte is made up of eight (8) bits. A bit is short for binary digit. Take for example the measurement of liquid, we say litre or the measurement of weight, we do so in grams. It’s…...

Study Guide Dec 2010

Dec 7 -13 IT: System and application software Biology Sample Questions POA: Trading profit and loss account Mathematics: Quadratic Equations History: Major Slave Revolts POB: Nationalised Industries OA: Preparing for a meeting Geography: Looking at paper 1 (part 3) Social Studies: Group Cohesion Read more →...

Storage Devices: Memory Storage Media

This post will look at the different aspects of storage devices. Memory Storage Media Memory provides storage for data, instruction and the result of processing. Memory is characterised by the ability to retain data when the electricity to the computer stops and the ability to change the information already stored. Programs and data can be…...

Hardware Devices

The hardware is the physical part of the computer. If you can touch it then it is hardware. Hardware includes: Central Processing Unit (CPU) Input devices Output Storage Devices Storage Devices The CPU This is the brain of the computer where all the processing takes place. It consists of electronic circuits that interprets and executes…...