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04 - Components of a Computer (types of bus)

 1. When talking about computer systems, hardware means the physical parts of the computer. Software means the ______________used with the physical computer.

  data and accumulators

  data sets and instructions

  programs and data

  controllers and drivers

 2. Here are the components and peripherals necessary to assembly a basic modern PC. Which of these is a secondary storage device? 
Here are the components and peripherals necessary to assemble a basic modern PC system:

Motherboard
Processor
Memory (RAM)
Case/chassis
Power supply
Hard disk
CD-ROM, CD-RW, or DVD-ROM drive
Keyboard
Mouse
Video card
Monitor (display)
Sound card
Speakers
Modem

  Hard disk, Memory, Video Card and Modem

  Hard disk

  Hard disk and Memory (RAM)

  Memory (RAM)

 3. What is Memory (RAM)?

  This type of memory is volatile i.e. it is does not retain data when the electricity is switched off

  This is system memory, often called random access memory

  All of the above

  It holds data and instructions that are currently in use - temporarily

 4. Secondary memory (secondary storage) is:

  does not need electric power to retain its data

  All of the above

  used for long term storage of data

  connected to the main memory through the bus and a controller

 5. Computer hardware is the physical components of the computer. Fill in the blanks. 
It is important to distinguish between the internal components, which are the processing and storage devices, and external components, normally referred to as _________

  disks

  peripherals

  externals

  drivers

 6. The _______________ is a circuit board that connects the CPU to the memory and all the other hardware. The CPU sits on the motherboard (also called the logic board).

  fatherboard

  motherboard

  CPU board

  circuitry header

 7. _____ are circuits on the motherboard that connect the CPU to other components. There are many buses on the motherboard.

  Wired frames

  Buses

  Transistors

  Switches

 8. A bus moves instructions and data around the system

  FALSE

  TRUE

 9. A bus enables a computer processor to communicate with the memory or a video card to the memory. You can think of it as a public transportation or school bus.

  FALSE

  TRUE

 10. The bus contains _______________that contain addressing information that describes the memory location of where the data is being sent or where it is being retrieved.

  multiple switches (transistors)

  multiple bytes

  multiple wires (signal lines)

  multiple signals

 11. Each wire in the bus carries a single bit of information, which means the more wires a bus has the more information it can address. Fill in the blanks 
 For example, a computer with a 32-bit address bus can address 4 GB of memory, 
 and a computer with a 36-bit bus can address __________

  1128 GB of memory

  26 to the power of 36GB of memory.

  None of the above

  2 GB of memory

 12. A bus is capable of being a _________ and today all computers utilize two bus types, an internal bus or local bus and an external bus, also called the expansion bus.

  fibre optic or single sided bus

  copper or aluminium bus

  parallel or serial bus

  None of the above

 13. An external bus is capable of communicating with external components such as a ____ or SCSI device

  CPU register

  Accumulator

  USB

  internal memory or RAM

 14. A computer or device's bus speed is listed in MHz, e.g., 100 MHz FSB. The throughput of a bus is measured in ..

  RAM per second

  hertz per second

  megabytes per hertz

  bits per second or megabytes per second.

 15. ESATA and SATA buses are used in:
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  monitors

  computer hard drives and disk drives

  CPU memory

  printers

 16. PCIe: This type of bus is used in expansion cards and video cards

  TRUE

  FALSE

 17. Short for _____________, USB (pronounced yoo-es-bee) is a plug-and-play interface that allows a computer to communicate with peripheral and other devices.

  unifunctional serial bus

  universal serial bus

  uninterrupted sequential bus

  universal strict bus

 18. On small CPUs, the data bus and address bus are sometimes combined into one bus. This is called multiplexing.

  TRUE

  FALSE

 19. This sends data to the memory or receives data from the memory. Data can flow both ways along the __________

  Catch Bus

  Data Bus

  Serial Bus

  Address Bus

 20. This sends information about where data needs to go by sending an address to the memory. The address bus only sends data in one direction - from the CPU to RAM.

  Address Bus

  Serial Bus

  Catch Bus

  Data Bus

 21. Which bus only allows data to be sent in one direction (from CPU to RAM)

  Catch Bus

  Serial Bus

  Address Bus

  Data Bus

 22. Fill in the blanks about the FSB and BSB. 
The bus that connects the CPU to the memory is called the front-side bus (FSB) 
or system bus. CPU cores share Level 2 and Level 3 cache across the FSB. 
They will usually connect to Level 2 cache through the back-side bus (BSB). 
The BSB is ___________________ than the FSB

  much thicker and made out of copper

  much slower

  much less efficient and hardly ever used

  much faster

 23. _____________are usually called I/O devices. They are directly connected to an electronic module attached to the motherboard called a device controller

  Inset / Outset devices

  Intruder / Outruder

  Input/output devices

  None of the above

 24. An actual bus appears as an endless amount of etched copper circuits on the motherboard's surface. The bus is connected to the CPU through the Bus Interface Unit.

  TRUE

  FALSE

 25. A data bus' width is measured by the number of bits that can travel on it at once. To increase the speed of a bus you could:

  attach a wireless adapter to each little bus to improve connectivity.

  decrease its width

  increase its width

  make holes in the wires that will allow wireless signals


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