IT Essentials v5.0: Introduction to the Personal Computer Online Study Questions Chapter 1

Transcription

1 Name: Per.: IT Essentials v5.0: Introduction to the Personal Computer Online Study Questions Chapter 1 Curr Question Answer How large were the first computers? The OS 2. What makes up a computer? 3. What is the difference between hardware and software? 4. Describe the purpose of a power supply. 5. What type of current comes from the wall socket? 6. What type of current is used by the computer? (it is a lower voltage) 7. What is the size and layout of a case called? 8. What are the two basic types of cases? 9. How are computer cases referred? 10. What factors must be considered when buying a case? What must you match when purchasing a power supply? 12. Fill in the empty spaces of this chart: Voltage Color Use AT ATX ATX12V +12V Disk Drive motors X X X -12V Some types of serial ports; early PROMs X X X Orange X X Motherboard, Baby ATA, earlier CPUs, MB Components +5V White X X X Ground X X X 13. What are the three main form factors for power supplies? 14. What is the advantage to using a UPS and why? 15. How are keyed connectors designed to be inserted? 16. A keyed connector used to connect to an optical drive. Molex connector ITE 5.0 Ch 1 Study Guide Online Study Questions 1-5

2 17. A keyed connector used to connect to a floppy disk drive. Berg connector 18. A newer connector used to connect hard and optical drives. 19. The main power connector for the motherboard has this many pins: 20. Should cables, connectors or components be forced to fit? Why or why not? Define the four basic units of electricity: (V) (I) (P) (R) 22. Copy and describe Ohm s Triangle here: 23. Why are power supplies dangerous? What should you avoid? (Hint: number 3 of the graphic) What allows data to travel among the various components 25. What are the major components attached directly to the motherboard? 26. What term is used to describe the size and shape of the motherboard along with the physical layout of the different components and devices? 27. Find the following: Look For Form Factor 6.7in x 6.7in Smallest ITX 12.8in x 10.5 Advanced Extended Technology 28. What determines the type of CPU that can be installed? 29. What controls access to the RAM, video card, and the speeds at which the CPU can communicate with them? 30. What allows the CPU to communicate with the hard drives, sound card, USB ports, and other I/O ports? Which component is considered the brain of the computer? 32. These items are used to connect the CPU to the motherboard. 33. Which architecture is used in most CPU sockets and processors today? 34. What term is used to describe multiple pieces of code processed simultaneously? 35. What refers to the amount of force needed to install a CPU into the motherboard socket or slot? 36. How is speed in a CPU measured? ITE 5.0 Ch 1 Study Guide Online Study Questions 2-5

3 37. What technique is used to make a processor work at a faster speed than its original specification? 38. Type of CPU that has more than one core on a single chip Why would a technician install a case fan? What type of memory contains instructions directly used by the CPU and does not erase when the computer is off? 41. This type of chip can be rewritten, but must be erased with UV light What type of memory is erased when the computer is powered off? 43. What type of RAM is 2x as fast as SDRAM? What is the memory type for the Industry name PC ? 45. What type of memory modules includes 168-pin, 184-pin and 240-pin? 46. Which type of cache has now been incorporated into the CPU? 47. What memory does not check for errors in memory? Why are adapter cards added to PC s? 49. Which kind of card connects computers to a network? 50. This type of card is used to connect HDD to a RAID. 51. This type of expansion slot has x1, x4, x8, and x16 slots What is the data storage capacity of a CD? 53. What is the data storage capacity of a DVD? 54. What interface can connect up to 15 devices and uses a 50-pin, 68-pin, or 80-pin connector? 55. What drive uses a type of memory that requires no power to maintain the data What does a colored strip on a cable identify? 57. This cable has seven conductors with a keyed connector on each end. 58. This is an 80-conductor cable What type of ports transmit one bit of data at a time? 60. What has a 24-pin female connector or a 29-pin female connector and provides a compressed digital output to a monitor? 61. Which connector has 24 pins for digital signals and 4 for analog signals? pin mini-din used to connect older mice and keyboards to the port. 63. This display port carries analog signals and has 15 pins Which two types of external devices are hotswappable? 65. How many devices can a single USB port in a computer support using multiple USB hubs? 66. What is the maximum speed of high speed USB 2.0? 67. How many devices can a single FireWire port in a FireWire USB ITE 5.0 Ch 1 Study Guide Online Study Questions 3-5

4 computer support? How many for USB? 68. What is the IEEE FireWire standard 1394 also known as? 69. What speed can the ieee 1394b standard support? 70. What is another name for a port used to connect a computer to a network? What are the two most common input devices? Keyboard Mouse 72. Device which has the capability of attaching two or more system units to the same monitor, keyboard, and mouse. 73. This input device uses a pressure-sensitive transparent panel What are the two most common output devices? LCD 75. Which display is commonly used in laptops and LCD some projectors? 76. Which output device uses a spinning color wheel LCD to produce an image? This term is used for a single dot on a computer LCD screen. 78. What is the term used for the number of times a LCD second the screen is redrawn? 79. This term is used for the number of pixels a LCD monitor actually has Selecting Replacement Components 80. This should be done before making any LCD purchases or upgrades. 81. What is the general recommendation for the output of the power supply? 82. What components does a replacement motherboard have to support? 83. What does the chipset establish? 84. What type of expansion slots should you choose if you need dual graphics cards? How are processor speeds measured? 86. This is the communications path between the CPU and the Northbridge. 87. These factors should be considered when choosing a heat sink or fan: 88. What is the most import factor when choosing new RAM? 89. Some of the questions to answer before buying an adapter card: ITE 5.0 Ch 1 Study Guide Online Study Questions 4-5

5 90. Some of the factors to consider when buying a NIC These are signs that customer HDD is failing: Why are SSD considered highly reliable? 93. What are some advantages to a SSD? 94. What type of drive is capable of Reading and writing DVDs? Which standard is replacing EIDE? What does CAx mean? 97. What kind of components does a CAx need? 98. This type of workstation has two or more operating systems running simultaneously. 99. What can be used in a gaming PC to keep it cool under heavy loads? 100. What is the standard video output for home theaters? ITE 5.0 Ch 1 Study Guide Online Study Questions 5-5