A generation is often referred to the state of improvement in the development of a product. Generation of computer is the advancement of computer technology from time to time. In every generation, the circuitry has become smaller and more advanced than the previous generation. Each generation of computer is characterized by a major technological development. […]
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DIGITIZATION OF DATA What is Digitization of data? Digitization is the process of converting analog information into a digital format. For example, scanning of analog source like printed photos or taped text, images or videos into computers for editing. Digitizing is the primary way of storing images in a form suitable for transmission and computer
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DATA AND INFORMATION What is data? Data refers to raw facts yet to be processed. It is a fact, number or text that can be processed by a computer. Data has no meaning to the user unless processed to get meaningful information. Source of data Data can be obtained by any one or more of
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Computers can be classified based on the following criteria Development of technology (by generation) Principle of operation (by type) Storage capacity or by configuration (by size) Degree of versatility (by purpose) Classification by types Computers can be classified into three major types based on principles of operations. The three types are Digital computer Analog computer
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Application Areas of ICT ICT in Everyday Life. ICT is an acronym which stands for Information and Communication Technology. It is defined as set of technological tools and resources used to communicate, create, disseminate, store and manage information. The technologies include computer, the internet, broadcasting technologies (radio and television), satellite and telephony. Uses of ICT
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INPUT DEVICES These are hardware components used in entering data into the computer for processing. They convert data from human-readable form into machine readable format. They take information from the user of the computer, convert it into electronic signals and transmit it to the processor. Examples of input devices are keyboard, mouse, joystick, microphone, digital
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OUTPUT DEVICES These are hardware components used to obtain results from computer after processing. They convert data from machine-readable format into human readable format. Examples of output devices are monitor, printer, speaker, projector, plotter, etc. MONITOR This is an output device that displays the result of processing on the screen. It resembles a T.V set
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Computer Memory This is the part of the computer where data, programs and information are stored for use of the computer. It comes in form of a chip. The basic unit for computer memory is byte. Other units are KB, MB, GB, etc. All computers have memory units. The programs a computer is running as
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COMPUTER SOFTWARE: TYPES, IMPORTANCE, FUNCTIONS AND OS Computer Software is refers to collection of programs (instructions) that cause the hardware to work. A program is a written instruction for a computer to perform a specific task. These are thousands of programs that one can run on a computer. For instance, a graphic program can be
Information Transmission is the process of transferring information from one place to another. There are many ways by which information could by passed across to somebody or group of people. The major methods are: Ancient Method Modern Method Ancient Method In the olden day information could be passed from one to another through different means
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This is a set of programs which takes over the operation of the computer to the point of being able to allow a number of programs to be run on the computer without intervention by an operator. It acts as an interface between the user and the hardware. It controls and allocates hardware resources on
WORD PROCESSING – WELL EXPLAINED 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 provide tools for copying, deleting various type of formatting. Word processor is an electronic device or computer software application, which performs the task of
The Number Bases Number Bases – Binary Number System, Octal Number System, Denary Number System (Decimal) and Hexadecimal Number system.
Database is an application that is used to store information in a structured way. It is a collection of records or data in an organized form. A database management system is a collection of computer software that enables users to define, create and maintain a database. A database management system (DBMS) is a computer application
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LOADING EXCEL APPLICATION Click on all programs, check the programs and click on the Microsoft suites then click on the excel application. CREATING EXCEL DOCUMENT Once Excel is open, you can enter data into a file by clicking on a particular cell, then typing text, numbers, or formulas. Your changes will be entered into the
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EXAMPLES OF SPREADSHEET There are various types of spreadsheet software which include: Microsoft excel Lotus 1-2-3, Starview, Supercal etc. MICROSOFT-EXCEL Out of the many examples of spreadsheet packages, Microsoft excel is the most commonly used because of its friendly features. Microsoft excel is part of Microsoft suite. The suite comes in various version such
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A spreadsheet is a collection of cells organized into rows and columns where data is stored and manipulated. The spreadsheet is known as worksheet. A spreadsheet begins with row number one and column A. A cell is a space in a worksheet formed by the intersection of a row and a column. Each cell can
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Loading CorelDraw Application
To access the CorelDraw application, take the following steps:
Click on the start button
Point to all Program
Point to CorelDraw Graphic Suite 12 (Depending on the version you are using)
Select CorelDraw
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The operational tools are as follows: The Toolbox The toolbox provides you with operational tools. The basic categories of tools are: Utility Tools Diagramming Objects Interactive Tools Painting Tools Utility Tools The Pick Tool For selecting objects. For moving, sizing, rotating and skewing object. The Shape Tool For editing the shapes of the
Step 1: Disconnect the mouse cable from the back of the computer case.
Step 2: Lightly dampen a cleaning cloth with isopropyl alcohol and wipe down the outside of the
computer mouse and mo
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