Computer Practice PDF - [No Exam Board]

Computer practice E - COMMERCE ( electronic commerce ) The buying or selling of goods or services over the internet. SEARCH ENGINE Websites or applications that allow users to communicate and share content...

Computer practice E - COMMERCE ( electronic commerce ) The buying or selling of goods or services over the internet. SEARCH ENGINE Websites or applications that allow users to communicate and share content with each other. SOCIAL MEDIA Softwares that’s carries out web searches on the internet. DESKTOPS desktops are an example of personal computers. they are meant for personal use. HARDWARE Hardware refers to all physical components of a computer. That you can see, feel and touch. SOFTWARE Software is the programming instructions. That tell the computer hardware what to do. A computer is a machine, and needs instructions to carry out work. RANDOM ACCESS MEMORY (RAM) The computers temporary memory location. Used to process instructions. LASER PRINTER This printer uses laser technology. To print high quality images and text on paper in black and white. Computer practice 1  ARITHMETIC LOGIC UNIT (ALU) This is the second part of the CPU. Which performs arithmetic, comparison and other operations. CENTRAL PROCESSING UNIT (CPU) A small chip inside the computer. Responsible for controlling the hardware devices of the computer. SYSTEM SOFTWARE System software is software that is intended for the computer. It controls and maintains the operations of a computer and its devices. System software is made up of two categories: The operating system. Software tools. OPERATING SYSTEM The operating system is the most important software that controls all of the operations on a computer or mobile device. The operating system is the most important software that controls all of the operations on a computer or mobile device. COMPRESSED FILES 1. file extension -.zip,.rar 2. example - BirthdayPics.zip PURPOSE OF SPREADSHEET PROCESSING APPLICATIONS spreadsheet software is specifically designed for the processing of numerical calculations Computer practice 2  and analysis of data To organise, store and analyse data. EXAMPLES FOR THE USE OF SPREADSHEETS creating personal budgets creating to - do/ shopping lists creating invoices / billing managing payroll analyzing data creating surveys capturing and analyzing test marks creating graphs / charts based on data METROPOLITAN AREA NETWORK (MAN) connects several local networks in a city allowing for fast data sharing over that region MBPS megabits per second COMPONENTS REQUIRED TO CONNECT TO THE INTERNET 1. computing device 2. networking components 3. data contract with an ISP WI-FI Wi-Fi is a wireless networking technology ADVANTAGE OF USING WEBSITES instant access to information communication is easier and faster online shopping and banking are convenient Computer practice 3  people can apply for jobs online entertainment is unlimited study online COPYRIGHT is a law that protects the owners of content such as text documents , audio ,video ect from having their work copied without their consent. SOFTWARE PRIVACY the unauthorized ( illegal ) copying of another persons work PLAGIARISM Presenting work or ideas from another source as your own, with or without consent of the original author, by incorporating it into your work without full acknowledgement. IDENTITY THEFT This refers to stealing personal information about you. HACKER Someone who gains unauthorized access to a computer or network. ICT IS INFORMATION COMMUNICATION TECHNOLOGY POSITIVE IMPACTS OF ICT ON A USERS HEALTH Computer practice 4  ICT can connect people in rural areas to doctors online where they can be assessed and diagnosed people can make use of medical websites to get more information about their existing health problems and get second opinions healthcare professionals can communicate all over the world to get you the best possible treatment ICT helps with development of new treatment methods and medications NEGATIVE IMPACTS OF ICT ON A USERS HEALTH using computers for a long time can lead to strain on the back ,hands and neck people become more anti social poor eyesight because of long hours spent on the computer Computer practice 5