LINKING UP OF COMPUTERS WITH ICT ICT covers any product that will store, retrieve, manipulate, transmit form e.g. Computers, digital T.V, email, etc. Examples of ICT (i) Radio (ii) Television (iii) GSM (iv) Cellular network (v) Computer (vi) Internet (vii) Satellite communication ICT TOOLS Medium to record information – e.g. magnetic disk/magnetic tape, optical […]
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Evolution of information and communication technology (ICT) has passed through different stages, namely; invention of printing stage, invention of radio and television stage, invention of computer stage as well as linking up computers with information and communication technology (ICT). INVENTION OF PRINTING: This is a stage in which printing technology has been invented. It
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Information is processed data. Information is useful and meaningful to the users. Unprocessed information is called data. The singular form of DATA is called DATUM. Qualities/Characteristic of Good information A good information must process the following qualities/characteristics. Timely: A good information must be timely. It should be communicated at the most appropriate time. Communication:
What is Data: Data is the raw material for data processing. It is a representation of unprocessed facts about people, places, events, objects, or transactions recorded from which information can be prepared. It can be represented with the help of character like alphabets (A-Z, a-z), digits (0-9) or special characters (+,-, /, *, <,>, =).
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TECHNOLOGY OF DIFFERENT INFORMATION AGE Technology is a term used to describe methods, means, materials and devices developed to solve human challenges/problem. (1) Stone Age: The early men first made farming tools, which are used for production of crop/food or hunting animals. The Stone Age is a period which was characterized by the use of
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CREATING, SAVING AND OPENING A WORD DOCUMENT CREATING A NEW DOCUMENT Steps on how to create a new document 1) Move the mouse pointer to office button 2) Click on Microsoft Office Button 3) A drop-down menu will appear 4) Move the mouse pointer to new and click 5) A dialog box will appear Double
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LOADING AND EXISTING MS WORD Loading Microsoft Word: Microsoft Word is a word processing package that enable the user to type, correct, edit, format and print out text and graphics in letters, reports, newsletters, etc. Steps on how to load Microsoft Word Click on the ‘start’ button at the left bottom of the screen.
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CENTRAL PROCESSING UNIT (CPU) CPU sometimes referred to simply as the Central Processor, but more commonly called Processor, the CPU is the brains of the computer where most calculations take place. The Central Processing Unit (CPU) of a computer is a piece of hardware that carries out the instructions of a computer program. It performs
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SYSTEM UNIT A system unit is the box that houses the sensitive computer hardware. It allows a good and neat arrangement of computer hardware. The cases of the system unit are made of light weight fabricated steal. Types of casing The type of casing or housing determine shapes system units. They are as follows.
WORD PROCESSING A word processor is an electronic device or computer software application that performs the task of composing, editing, formatting and printing of documents. Word processing software is used to manipulate a text document, such as a resume or a report. You typically enter text by typing, and the software provides tools for copying,
OUTPUT DEVICES: There are the physical components of a computer used to obtain results from computer after processing. There devices convert data from machine-readable format into human-readable format. Examples: (a) Monitor (b) Printer (c) Plotter (d) Speaker (e) Projector (f) Microfilm, etc. (a) MONITOR: This is an output device that displays the result of
SYSTEM START UP, BOOTING AND SHUT DOWN (I) System Start Up: This is a general term used to describe the process of preparing the computer, operating system, hardware, or software for operation. This is more commonly referred to as the boot or boot up. (ii) Booting: Booting is a process or set of operations that
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MOUSE A mouse is a hand-held input device that controls the movement of the cursor or pointer on the screen of the monitor. Mouse has at least two buttons and sometimes newer mice also include a scroll wheel for scrolling through long document. The button on the left is called the primary mouse button, the
INPUT DEVICES An input device is a peripheral (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboard, mouse, scanners, digital cameras and joysticks, etc. An input device is any hardware device that sends data
KEYS ON KEYBOARD A keyboard is an input device that resemble a typewriter, which is used to type text, numbers, symbols, commands and to give instructions to the computer. Alphanumeric keys: These are used to type letters and numbers, the letters A – Z, a – z and the digital 0 – 9. Punctuation Keys:
Definition of Computer Computer is an electronic device or machine which has the ability to accept data, process data and send out information as output. it has the ability to store and retrieve information. A computer is a programmable machine, it allows the user to store all sorts of information and then process that information
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COMPUTER GRAPHICS PACKAGE A graphic is a digital representation of drawing, chart or photographs. It can also be called a picture or image which contains no motion or animation. Graphic package is an application that can be used to create and manipulate images on a computer. Computer graphics are used in many applications including
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What is Microsoft Power Point? Microsoft PowerPoint is a presentation program that is incorporated in Microsoft Office suite package. It offers word processing, outlining drawing, graphing and presentation management tools Starting a presentation with Microsoft PowerPoint There are two ways of starting Microsoft PowerPoint Click on start button, choose All Programs and click PowerPoint
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PRESENTATION PACKAGE – FULL EXPLANATION What is presentation package? A presentation package is a software package used to display information in the form of a slide show. It provides the resources necessary to give a professional presentation for meetings, lectures, speeches or other similar situations. It enables graphic images to be inserted and manipulated in
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INTERNET – WELL EXPLAINED What is internet? Internet or simply “The Net” is a worldwide system of computer networks in which used at any one computer can, if given permission or access, get information from any other computer. It is the largest connected of millions of computers connected to thousands of different networks worldwide.
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