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What are the two main parts of a computer?

What are the two main parts of a computer?. Software & Hardware. NEXT ->. What is hardware?.

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What are the two main parts of a computer?

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  1. What are the two main parts of a computer? • Software & Hardware NEXT->

  2. What is hardware? • The part of the Computer that you can see and touch such as the system unit, keyboard, monitor and mouse. There are other hardware parts inside the system unit which can only be seen when the Computer case is opened. The motherboard, CPU and adapter cards are inside the System Unit. <-PREVIOUS NEXT->

  3. What is Software? • Computer software is any series of instructions in a language that the Computer understands and is able to execute to accomplish the tasks required by the software. • Software is sometimes called a program or an application. <-PREVIOUS NEXT->

  4. Give examples of Computer Software? • Microsoft Word • Excel • Gaming programs • Computer gaming software <-PREVIOUS NEXT->

  5. Give four examples of Computer hardware ? • keyboard • mouse • monitor • system unit <-PREVIOUS NEXT->

  6. What is an input device? • This is what we use to tell the Computer what to do. For example if you type on the keyboard the Computer will receive the text or your keyboard commands . • The keyboard is therefore an input device. <-PREVIOUS NEXT->

  7. What is an output device? • An output device makes you see or hear what the Computer is doing. When you type on the keyboard or move the mouse the monitor makes you see what the Computer is doing. • In this case the monitor is the output device giving you visual information on what the Computer is doing. <-PREVIOUS NEXT->

  8. How does the Computer get input? • We can tell the computer what to do by typing on the keyboard, by pointing and clicking the mouse on an icon or a program. • You can scan documents and pictures into the computer using a scanner. • With the help of a webcam pictures and videos can be sent into the computer and transferred to other computers on the Internet. <-PREVIOUS NEXT->

  9. Where does a Computer send its output? • Monitor • Printer • Speakers The above are all output devices. <-PREVIOUS NEXT->

  10. YES or NO. The computer will work without software. • The answer is NO because a computer needs both hardware and software to function and perform any meaningful tasks. <-PREVIOUS NEXT->

  11. What is the difference between an INPUT and OUTPUT device? • You use an input device such as the MOUSE or KEYBOARD to tell your computer to do something. For example run a program. • An output device such as the monitor allows you to see what the Computer is doing. If you move the mouse or type on the keyboard while in a word processor, the monitor enables you to see the text you are typing. <-PREVIOUS NEXT->

  12. The VGA port on the computer is used for what? • It is used to connect a monitor to the computer. <-PREVIOUS NEXT->

  13. How does a Computer store information or data? • The Computer stores data and information permanently either on a permanent storage media such as the hard disk or on a temporary media such as its main memory. • The Computers main memory (RAM) is used for temporary storage only. All information inside the memory is lost when you turn off or restart the Computer. • RAM is short for Random Access Memory <-PREVIOUS NEXT->

  14. How does the Computer process information? • The CPU works together with other integrated circuits on the motherboard to carry out the instructions contained in a program. <-PREVIOUS NEXT->

  15. What is another name for software? • PROGRAM or APPLICATION <-PREVIOUS NEXT->

  16. True or False:A printer is an input device. • FALSE • The printer is an example of an output device. • When you want to see a hard copy of a document or text, you signal the application that you would like to print. The application will then send the text as output to the printer which then creates the printout for you on paper. <-PREVIOUS NEXT->

  17. True or False. A monitor is an output device • TRUE • The Monitor helps you see what the Computer is doing. • For example when you type on the keyboard the text appear on the monitor for you to see. <-PREVIOUS NEXT->

  18. True or False. A keyboard is and output device. • FALSE. The keyboard is an input device. • When you type on the keyboard you are telling the Computer what to do. <-PREVIOUS NEXT->

  19. True or False. A mouse is an input device • TRUE • The Mouse is one of the standard input devices. • You use the mouse to signal or tell the Computer what programs to run or what tasks to perform. <-PREVIOUS NEXT->

  20. Is a speaker an input or output device? • A Speaker is our output device • When you play a sound or music on the Computer you hear the sound in the speaker. • The Computer outputs or sends the sound to the speaker for you to hear. <-PREVIOUS NEXT->

  21. What are the basic input and output components of the computer? • KEYBOARD • MOUSE • MONITOR <-PREVIOUS NEXT->

  22. What is the Central Processor Unit • This is the brain of the computer. It carries out all the instructions that you send to the computer through a program or from an input devices. <-PREVIOUS NEXT->

  23. What is another name for the CPU • The Microprocessor or Central Processor Unit <-PREVIOUS NEXT->

  24. CPU is short for what? • CPU is short of Central Processor Unit. • The CPU is the brain of the Computer. It performs functions that makes the Computer accomplish useful tasks. <-PREVIOUS NEXT->

  25. What does the CPU do for the computer? • The CPU executes all the instructions given to the computer either through a program or by the user to complete the intended task. <-PREVIOUS NEXT->

  26. Why have Computers become so popular? • Computers allow individuals and companies accomplish various tasks much faster and more efficiently. Information can be created, stored, shared and retrieved much faster. This has made the computer the device of choice for conducting business. <-PREVIOUS NEXT->

  27. What is an electronic mail? • This is a program or application that allows you to create and send text messages to other people. You can also attach files and pictures to the text message and send. <-PREVIOUS NEXT->

  28. What is the internet? • The internet is a worldwide network of computers that share a wide range of resources. <-PREVIOUS NEXT->

  29. What can you do on the internet? • Search for information • Download files • Play Games • Send and retrieve emails • Learn • Shop <-PREVIOUS NEXT->

  30. Why is the internet so popular? The Internet has numerous benefits. It has enabled resources to be shared worldwide. You can reach millions of people with the help of the internet. Amongst the things one can use the internet for are: • Search for information • Download files • Play Games • Send and retrieve emails • Learn • Shop <-PREVIOUS NEXT->

  31. What is an Internet Browser? • This is the program or application that you launch to connect to the internet. It provides an interface to the World Wide Web. <-PREVIOUS NEXT->

  32. What is a Search Engine? • This is the program that allows you to search for all kinds of information on the internet. Examples of Search Engines are Google and Yahoo. • To use the Google search engine the www.google.com in your web browser. <-PREVIOUS NEXT->

  33. What will you need to connect your Computer to the Internet? • a communications device such as a modem or router • a communications infrastructure such a telephone line or satellite link • an Internet Service Provide (ISP) so subscribe internet service from • an Internet Browser ( e.g. Internet Explorer, FireFox, Netscape) <-PREVIOUS NEXT->

  34. What does an ISP do? • To get access to the Internet from a home Computer you need to buy or subscribe to Internet service from an ISP. The ISP already has high speed link to the internet and is in the business of selling internet access services to subscribers. <-PREVIOUS NEXT->

  35. What is the recommended way to turn on or power on you Computer and its peripherals? • First power on all external devices attached to the Computer including peripherals such as modems, printers, scanners, monitors. Then turn on the system unit. <-PREVIOUS NEXT->

  36. The speed at which your CPU processes instructions is measured in Mega Hertz (MHz) or Giga Hertz (GHz) • 1000MHz = 1GHz <-PREVIOUS NEXT->

  37. True or False. The MEMORY or RAM inside the Computer is used by the CPU as temporary storage while the CPU executes its instructions • This is TRUE • The Computer’s CPU (a.k.a Central Processor Unit) uses the RAM or memory inside the Computer to store programs instructions and data while it executes those instructions. • When you turn off the Computer all the information in memory will be erased and lost. <-PREVIOUS NEXT->

  38. What happens to the information stored inside RAM when you shutdown the Computer • Information in RAM (that is the Computer’s main memory) is only temporary. This information is lost when the Computer is powered off or shutdown. • While you are typing a text or creating a document your work is kept temporarily in the Computer’s main memory. If you need to store this information permanently you need to save your work to the hard disk or a pen drive. • It is advisable to save your work often. <-PREVIOUS NEXT->

  39. What is a Computer Network? • A Computer network consists of two or more computers connected together with the purpose of sharing resources such as printers and files servers. <-PREVIOUS NEXT->

  40. What are the benefits of a Computer Network? • A Computer network allows resources to be shared among computers on the Network. If you have a printer connected to the network or to one of the Computers on the network, other computers can print to this printer. • A Computer network also allows the transfer of information such as electronic mails and data from one Computer to the other .The Internet is a special type of Computer Network <-PREVIOUS NEXT->

  41. Name a few resources that can be shared on a Network. • Printers • Databases • File servers • Internet Connection <-PREVIOUS NEXT->

  42. Name some of the communication devices that will be needed on a Network • HUBS, • SWITCHES • ROUTERS • ETHERNET ADAPTER CARDS • WIRELESS ADAPTER CARDS <-PREVIOUS NEXT->

  43. What is the motherboard? • The motherboard is located inside the Computer case (system unit) and it houses all the critical components inside the computer including the CPU, various integrated circuits, RAM, adapter cards. <-PREVIOUS NEXT->

  44. What is an Adapter Card? • Adapter cards allow external and peripheral devices to be connected to the computer. • Adapter cards are normally installed on the motherboard. • A Network Adapter card allows you to connect a Computer to a network. • A video adapter card allows a monitor to be connected to the Computer. • A sound card allows speakers and microphones to be connected to the Computer <-PREVIOUS NEXT->

  45. On the Computer where will you normally find PORTS for mouse, keyboard, monitor and, printers? • The ports for these devices are normally located at the back of the Computer. Newer Computers with USB ports allow you connect USB Keyboards and Monitors to the front or side of the of the System Unit. <-PREVIOUS NEXT->

  46. What kinds of mouse and keyboard connectors and ports exist? • PS/2 => Used to connect a PS/2 style mouse or keyboard to the computer. • The PS/2 mouse connector is usually GREEN in color. • The PS/2 keyboard connector is usually PURPLE in color. • USB => Used to connect USB style mouse and keyboard to the computer. USB is acronym for Universal Serial Bus. It can be used to connect a wide range of devices to the Computer • SERIAL => Also known as COM port. Some old mice use to have serial connectors and could be connected to the computer this way. Serial ports are also used to connect peripherals like external modems and digital cameras to the computer <-PREVIOUS NEXT->

  47. What is ROM (Read Only Memory) • This is memory that is pre-programmed with instructions that the CPU reads and processes when the computer is powered up or turned on. • ROM is non-volatile memory. Information in ROM stays permanently and is not lost when you shutdown or reboot the computer. <-PREVIOUS NEXT->

  48. What is the difference between RAM and ROM? • RAM is volatile memory and ROM is non-volatile memory. • RAM stores information temporarily whiles the computer is still running. • Information inside the ROM is electronically pre-programmed and permanent. • RAM loses all its content when the computer is powered off or restarted. • ROM maintains its information even when the computer is powered off. <-PREVIOUS NEXT->

  49. How do you copy files from one location to the other? • Look for the file in the location where it is stored • Right Click on the file with the mouse. From the pop-up menu choose copy. • Go to the drive and folder where you would like to copy the file to. • Right-Click and open space and select paste Restart Show

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