Database packages are used to design a database in a computer. Example of a common database package is Microsoft Access. MS Access is a Relational Database Management System used to create and modify databases. USING MS- ACCESS FOR DATABASE To create a database on the computer with MS Access Load MS Access: do the following; […]
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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. Â 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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INPUT DATA After the field names and their data types have been specified, then records are stored in the database by specifying the appropriate input. In MS Access, to input a data: Double click on the Student Table at the left hand pane of MS Access windows Enter the data beneath the field names and
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CREATING A WORD DOCUMENT Click on the start icon to display the start icon to display the start menu and then click on the Microsoft word icon. The program gives you an empty one to type. HOW TO SAVE A DOCUMENT Start a new document in word and type your text. Click file in the
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A word processor is a computer software application that performs the task of creation and printing of electronic documents. There are several types of word processors; they include Word Perfect, Word Star, MS-Word, Loco Script, Ami-Pro, Word Craft, and WordPad etc. Microsoft Word: it is part of the Microsoft office suite. Word consistently wins the
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Word processing is the phrase used to describe using a computer to create, edit and print documents. It is also the creation, input, editing and production of a document with a computerized device. A word processing package enables you to type in and manipulate text. It helps you to enter, store, format, copy and print
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There are various means of transmitting information, and the choice of method often depends on the nature of the information, the distance it needs to travel, and the desired speed and reliability of transmission. Here are some common means of transmitting information: 1. Wired Communication: This involves the use of physical cables or wires to
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COMPONENTS OF A COMPUTER SYSTEM A computer system consists of three main parts otherwise called components. They are : Hardware Software People ware HARDWARE COMPONENT The computer hardware could be defined as the physical parts of the computer that we see, feel and handle. It consists of device for input, processing, storage, output and
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Information processing is the acquisition, recording, organization, retrieval, display and dissemination of information. Information processing could also be referred to as the manipulation of digitalized information by computers and other digital electronic equipment, known collectively as Information technology. A computer information processor processes information to produce understandable results. For example, an information processor works to
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DIGITAL COMPUTER This is the most common type of computer today. It measures physical quantities by counting. Examples are calculator, digital wrist watches, digital fuel dispenser etc. ANALOGUE COMPUTER This type of computer is used to measure and process continuous data such as speed, temperature, heartbeat etc. Examples are speedometer, thermometer etc. HYBRID
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Digitalization is the process of converting information into digital format. This information may represent an object, image, sound, document or a signal (usually an analog signal) organized into discrete set of its points or samples. This is the binary data that computers and many devices with computing capacity (such as digital camera and digital hearing
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Anti-virus software is your computer’s best defence against malware (e.g., viruses, Trojan horses, worms, spyware) – install and update anti-virus software on your computer and regularly scan your computer to make sure it is free from malware. Computer safety measures are essential to protect your digital data and ensure a secure computing environment. Here are
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SUPER COMPUTER These are the largest, fastest and most expensive computers. The cost is several millions of dollars and the speed is between 600 million to 900 million instructions per second (MIP). Another name for super computer is MONSTER. Scientists in weather forecasting, exploration make use of super computers. It can also be used for
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A chart, also called a graph, is a graphical representation of data, in which “the data is represented by symbols, such as bars in a bar chart, lines in a line chart, or slices in a pie chart”. A chart can represent tabular numeric data, functions or some kinds of qualitative structure and provides different
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In this chapter, you shall learn about what is data and information; the difference between data and information. Attempt to distinguish between manual and electronic data processing. Â DEFINITION OF DATA The term data means any basic fact which may be input to some processing system. A processing system is one where computations, comparisons and
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Consider the table below: Generations Of computers Year of development The Technology Used Characteristics Software Instruction Storage Capacity First 1951-1958 Vacuum tube Very big and slow in operation Machine language Small internal storage Second 1959-1964 Transistor Less heat generation High level & Assembly Core storage Third 1965-1975 100-1000 Chips Introduction of integrated circuit
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Data are raw, unorganized or unprocessed facts that need to be processed. Data can be something simple and seemingly random and useless until it is organised. TYPES OF DATA Qualitative data i.e descriptive information Quantitative data i.e numeric information  SUBDIVISION OF QUANTITATIVE DATA Continuous data: this can take any value. It is also known
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