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Introduction to computer

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  • 1.  
  • 2. A computer is an electronic device that has the capability to manipulate information or data, store, retrieve, and process it for more useful information. It is programmable so it can responds to specific instructions or commands.
  • 3.  
  • 4. The main frame is a type of computer which is considered as the heart of a network of computers or terminals which allows hundreds of people to work at the same time on the same data. It requires a special environment - cold and dry. Main Frame
  • 5. The supercomputer a type of computer that are used for jobs that take massive amounts of calculating, like weather forecasting, engineering design and testing, serious decryption, economic forecasting, etc.   Supercomputer
  • 6. The minicomputer has become less important since the PC has gotten so powerful on its own. In fact, the ordinary new PC is much more powerful than minicomputers used to be. Originally this size was developed to handle specific tasks, like engineering and CAD calculations, that tended to tie up the main frame. Minicomputer
  • 7. Microcomputers are computers for personal use come in all shapes and sizes, from tiny PDAs (personal digital assistant) to hefty PC (personal computer) towers, Laptop and others. Microcomputers
  • 8. Personal Computer or PC for short is a small, This computer is designed for an individual user. Personal Computer
  • 9. Desktop is a common term used to describe a general type of personal computer that is not portable and often placed on or at someone home or office desk. Desktop Computer
  • 10. Laptop Computer Laptop Computer is a small, portable computer enough to sit it on your lap. Laptop computers are more frequently called as notebook computers , though technically laptops are somewhat larger in size than notebooks in both thickness and weight. Portable computers run off AC power and also have the ability to run of battery pack for a few hours.
  • 11. Netbook is a small portable computing device, similar to a notebook. However, it has a smaller form factor. Most Netbook nowadays have the same performance with other Notebook. Netbook
  • 12. Originally this size was developed to handle specific tasks, like engineering and CAD calculations, that tended to tie up the main frame PDA
  • 13.  
  • 14. System Unit is the main body of a desktop computer which is typically consisting of a metal or plastic enclosure containing all the essential parts of the personal computer. System Unit
  • 15. Monitor is a visual display unit, which shows images generated from the video output a computer. Computer monitor nowadays have two types. The CRT (Cathode Ray Tube) monitor which is a big, like a tube television, and consume a lot of space in a table; however, it is the least expensive monitor option. The LCD ( Liquid Crystal Display ) monitor is thin and saves energy, but costs more. Monitor
  • 16. Mouse is also known as pointing device whose function is to detect two-dimensional motion relative to its supporting surface. Mouse
  • 17. Keyboard is an input device, designed just like a typewriter keyboard. It is one of the primary ways we communicate with the computer and enter data. Keyboard
  • 18. Speakers are external audio device which is commonly equipped with a low-power internal amplifier. The standard audio connector of a computer speaker is a 3.5mm (1/8 inch) stereo jack plug often color-coded lime green for computer sound cards. Speakers
  • 19. AVR (Automatic Voltage Regulator) The role of automatic voltage regulator's is to reduce the 5 volt signal to the lower voltage required by the microprocessor. Other prefers to have UPS (Uninterruptive Power Supply) which cost much than AVR but good enough because it has its own chargeable battery, enabling your computer not to shut down in case of power failure. AVR
  • 20.  
  • 21.  
  • 22. What electronic device has the capability to manipulate information or data, store, retrieve, and process it for more useful information?
    • Computer
    • Typewritter
    • Abacus
    • Software
  • 23. The ____is a type of computer which is considered as the heart of a network of computers or terminals which allows hundreds of people to work at the same time on the same data.
    • Supercomputer
    • Mainframe Computer
    • Minicomputer
    • Microcomputer
  • 24. What type of computer which is the size was originally developed to handle specific tasks, like engineering and CAD calculations, that tended to tie up the main frame?
    • Supercomputer
    • Mainframe Computer
    • Minicomputer
    • Microcomputer
  • 25. The _____ a type of computer that are used for jobs that take massive amounts of calculating, like weather forecasting, engineering design and testing, serious decryption, economic forecasting, etc
    • Supercomputer
    • Mainframe Computer
    • Minicomputer
    • Microcomputer
  • 26. AVR means _______________
    • Auto Voltage Regulator
    • Automatic Voltage Regulator
    • Automatic Voltage Resistor
    • Automatic Voltage Retriever
  • 27. Which of the following is not an example of Microcomputer?
    • Laptop
    • PDA
    • Weather forecasting computer
    • Personal Computer
  • 28. _____ is also known as pointing device whose function is to detect two-dimensional motion relative to its supporting surface.
    • Keyboard
    • Monitor
    • Webcam
    • Mouse
  • 29. What does CRT stands for?
    • Cathode Radiation Tube
    • Camera Rotating Television
    • Cathode Ray Tube
    • Cathode Ray Television
  • 30. What does LCD means?
    • Liquid Center Display
    • Liquid Colored Display
    • Liquid Crystal Diode
    • Liquid Crystal Display
  • 31. You accidentally opened a file containing questions for your incoming test on computer education made by your teacher. What would you do on this file?
    • I will copy it and share it on my classmate
    • I will browse and read it so I may have an idea about the test.
    • I will not read it and inform my teacher about what I seen.
    • I will delete the file.
  • 32.  
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  • 34.