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Showing posts from May 30, 2020

Internet for JSS2

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Internet for JSS2 Definition of Internet Internet is a worldwide network of computers that share information. The Internet is a global network connecting millions of computers. It is also defined as a global system of interconnected computer networks that use the Internet protocol suite to link devices worldwide. Internet Terms 1. Cyber café : An internet café or cyber café is a place which provides internet access to the public, usually for a fee. 2. Download : To transfer a file from remote computer to a local computer. In other words, it means to transfer a file from a web server to a web client. 3. Upload : To transfer a file from a local computer to a remote computer. In other words, it means to transfer a file from a web client to a web server. 4. E-mail : An email is a mail that is electronically transmitted by your computer. 5. Email Address : An email address is the name for an electronic postbox that can receive and send email messages on a network. An email address consist

ICT Gadgets for JSS2

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ICT Gadgets for JSS2 A gadget is a small technological device or an appliance that has a particular function. Examples of ICT gadgets include Computer, Automated teller machine (ATM), Dispensing machine, Radio sets, Television set, Fax machine, Telephone, GSM, etc. Fax Machine (Facsimile Machine) This transmits texts and graphics messages from one location to the other; it might be within the country or outside a country with the use of series of number called Fax number. It is a combination of a telephone and a photocopier. Telephone A telephone, or phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals suitable for transmission via cables or other transmission media over long distances, and replays such signals simultaneously in audible form to its user. Cell Phone (GSM) Cellular or cell phone

ICT as a Transformation Tool for JSS2

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ICT as a Transformation Tool for JSS2 Meaning of ICT ICT is an acronym that stands for Information and Communication Technology. Information : Information is refers to knowledge obtained from reading, investigating, study and research. Communication : Communication is an act of transmitting messages. Technology : Technology is the application of scientific knowledge for practical purpose especially in industry. ICT can therefore be defined as technologies that provide access to information through telecommunication. It also defined as the use of diverse set of technological tool and resources to communicate, create, disseminate, store and manage information. It is the combination of compatible hardware and computer-based information systems together with improved communication technologies. Information can be transmitted from one place to the other with the use of ICT. For example, sending and receiving e-mail messages, making phone calls, audio and video conferencing, sending and rec

Operating System for JSS2

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Operating System for JSS2 Definition of an Operating System i. An operating system (OS) is system software that manages the hardware and software resources of the computer. ii. An operating system is the software that controls the overall activity of a computer. iii. The term operating system (OS) denotes the collection of program that act as an interface between the user’s program and the computer hardware. The main purpose of the operating system is to effectively and judiciously manage the computer system resources, such as processors, main memory, secondary storage, input and output devices and files. Examples of Operating System Examples of commonly used operating system include: a. DOS (Disk Operating System) b. Windows (95, 98, 2000, NT, ME, XP, 7, 8, 10) c. Unix d. Linux e. Mac f. IOS g. Android Types of operating System i. Real-time operating system (RTOS) - A Real Time Operating System, is an operating system that rapidly switches between tasks. Real-time operating system

Computer software for JSS2

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Computer software for JSS2 Definition of Software Software is a set of instructions and procedures passed to the computer to perform certain activities or task. It can also be defined as a set of instructions that direct the activities of the computer system in order to undertake a specific task. Unlike the hardware, software cannot be seen or touched. Types of Software Software is divided into two broad groups, these are: 1. System Software 2. Application software 1. System Software These are software that control the way the different computer components communicate with one another. It can also be defined as programs that help run the computer hardware and software. The system software consists of programs, written by manufacturers, which contributes to the proper control and good performance of the computer system. System software generally comprises three groups. These are: a. Operating system b. Utility software c. Translators a. Operating system : Operating (OS) is software pro

Graphic Packages for JSS2

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Graphic Packages for JSS2 Definition of Graphic Package Graphics packages are application software that can be used to create and manipulate images on a computer. Examples of Graphic Packages   Examples of graphic packages include: Ms Paint, Adobe Photoshop, Instant artist, Harvard graphic and CorelDraw. Features of Graphic Packages Most of the graphic packages posses the following features and tools. 1. Menu bar : The menu bar can be used to activate commands of graphic packages and operations. Depending on the graphic package you are using, some packages contain the following. File, edit, view, text, tools, window, help, etc. 2. Toolbar : The tool bar is a bar that contains short cuts to menu and other command. For example you can use the “open” icon o open an existing document by clicking on it. Others are save, print, cut, copy, paste, alignment, bold italics, underline etc 3. Toolbox : A toolbox is a bar with tools for creating, filling and modifying objects in the drawing 4. Pr

Safety Measures for JSS2

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Safety Measures for JSS2 Definition of Computer Ethics Ethics is a set of moral principles that govern the behaviour of a group or individual. Computer ethics is a set of moral principles that regulate the use of computers. Computer Room Management Ethics A computer room must be managed properly. Unlike our homes we need to keep a computer room in a good condition always by: 1. Making it free of dust : we should endeavor to dust our computers every day after sweeping the room. After sometime, a computer engineer should use a blower to blow off dust from within the computer. 2. Maintaining appropriate lighting : a computer room must not be dark while computers are being used. Steady flow of electricity and a device called uninterruptible power supply (UPS) should be used. A UPS is a device used to store electricity for the computer in case of power failure. 3. Maintaining adequate and appropriate ventilation: A cooling system is very necessary all the time for our computers. Fans and

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