JSS ONE WEEK EIGHT LESSON NOTE (ICT_223)

 

JSS 1

TOPIC: FUNDAMENTAL COMPUTER OPERATION

Introduction

For you to be able to access a computer resource to perform any task, it must be setup properly. Setting up a computer is the process of connecting appropriately all the various components together. The input devices and other devices must be well connected.

Booting the Computer System

Booting is the process of ‘starting up’ a computer system i.e. preparing computer for use. It can be compared to the ‘kick-starting’ of a moto car. Booting is an automatic process of checking for availability of connected parts of the system unit.

Types of Booting

1.     Cold booting

2.     Warm booting

Cold booting: is a method of staring up a computer system by turning on the power switch of the system unit and the monitor.

Warm booting: is the re-booting or restarting of a computer system that is already on.

Steps for booting a computer system

Steps for cold booting:

o   Connect your computer power cable to electricity power source

o   Switch on the electricity power supply

o   Press the power switch button on the system unit

o   Press the power switch button on the monitor (VDU)

It will display light and some icons on the screen, meaning that it is ready for operation.

 Steps for warm booting:

Simply press the reset button on the system unit or press ALT, CTRL and DEL at the same time. This can be done as follows:

o   Hold down the ALT and CTRL keys at the same time

o   Press DEL key as you hold down the other two keys

o   Release your fingers

Shutting down a computer system

The steps involved in shutting down a computer system are as follows:

o   Close all programs, files or folders that are open.

o   Click start on the task bar, a menu appears

o   Click on turn of computer (or shutdown) on the menu



Comments

Post a Comment

Popular posts from this blog

JSS 2 WEEK TWO LESSON NOTE_FIRST TERM 2023

Image
  Jss2 TOPIC: CLASSIFICATION OF COMPUTER BY GENERATION OBJECTIVE At the end of this topic you should be able to:  1. List the criteria for classifying computers.          I.                   2. State the features of computers classified based on technological age. Introduction Computers can be classified into different categories based on different criteria. Basically, computers can be classified based on the following criteria: 1.      Size. 2.      Types 3.      Generation 4.      Purpose or versatility Based on the technological Age of the computer, computers can be classified into: ·         First generation ·         Second generation ·         Th...
Read more

SSS TWO WEEK TWO LESSON NOTE (ICT_223)

Image
  Ss2 TOPIC:   HANDLING COMPUTER FILES Introduction File operation deals with the physical movement of data in and out of files. User programs effectively use file operations through appropriate programming language syntax. The file management system manages the independent files and acts as the software interfaces between the user programs and file operations. Basic Operations of Computer Files 1.     Insertion: records must be inserted at the place dictated by the sequence of the keys. As   obvious, direct insertion into the main data file would   lead to frequent rebuilding of the file. This problem could be mitigated by reserving overflow areas in the file for insertions. But this leads to wastage of space and also the overflow areas may also be filled. 2.     Deletion: deletion is the reverse of insertion. The space occupied by the record should be free for use. 3.     Updating: updating is a combinat...
Read more

JSS ONE WEEK THREE LESSON NOTE (ICT_223)

Image
  Jss1 TOPIC:   MASTERY OF THE KEYBOARD Introduction A computer keyboard is the most commonly used input device. It is defined as the set of typewriter-like keys that enables you to enter data into a computer or other devices. Computer keyboard are similar to electric-typewriters but contain additional typing keys. The standard arrangement of alphabetic keys on the keyboard is known as the QWERTY. The computer keyboard could be wired or wireless. Types of keyboard There are different types of keyboard depending on what they are used for. Some have more keys than the others. Keyboards also come in different shapes but basically a keyboard has regular shape. The types of keyboards are: a)      Enhanced keyboard b)     Standard keyboard   c)      Windows keyboard d)     AT keyboard   Sections of the Keyboard The keyboard is divided into the following sections: ...
Read more