Name: __________________ Date: _______________

1
Name __________________ Date _______________
1. What connects the CPU with other devices and
peripherals of the computer system? ______________
___________ 2. The primary bus of the
computer consists of what elements? ______________
___________ _________________________ ____________
_____________ 3. What is the amount of data that
can be transferred across the system bus in one
second if the data transfer unit is 32 bits and
the CPU clock is 400 MHz? (show
computations) 4. The bus clock is carried
along what hardware device? ______________________
___ 5. Manners, etiquette , code of behavior ,
practice, set of rules, modus operandi, and
method are also known as _________________________
6. Devices other than the CPU and Primary
Storage are called ______________
______________
1. System Bus 10 2. Data bus 10 2.
Address bus 10 2. Control bus 10 3.
10 4. Control bus 10 5.
Protocol 10 6. Peripheral devices 10
32 bits 4 bytes4 x 400,000,000
1,600,000,0001.6 billion bytes per second 1.6
Giga Bytes
2
220
7. Between a bus master and a bus slave, which
one controls the actions on the
bus? _________________________ 8. What
controller handles transfer of information
between I/O devices and memory. It frees up the
CPU from having to control the bus data
movement. _________________________ 9. With a
CPU clock of 150 MHz, what is the bus cycle
time? _________________________ 10. The system
bus is an electronic element, give two (2)
reasons that keep the speed of the bus from
running at maximum. _________________________ ____
_____________________ 11. Name two (2) things
that bus protocol governs ________________________
_ _________________________

• 7. Bus master 10
• 8. DMA 10
• Direct Memory Access controller
• 9. .000000006666 10 6.66 nanoseconds
• 10 10 a) Noiseb)
  Interferencec) Time required for peripheral
  device interface circuits to set up
• ---------------------------
• 10 10
• Transmitting/receiving format
• Content of information
• Timing (along with the system clock)DataMemory
  addressesControl messages

1 second / 150,000,000
3

• 12. What is a communications pathway from the
  computer to a peripheral called?
• _________________________
• 13. What connects an I/O device to the system bus
  and monitors the bus control lines?
• _________________________
• 14. What is a standard bus designed for secondary
  storage devices called? It is a totally separate
  bus from the system bus.
• _________________________
• What is the name of a signal from an I/O device
  that is used to gain the attention of the CPU?
• _________________________
• 16. What is a mechanism that allows a program to
  resume execution in exactly the same state
  (swapping registers)?
• _________________________
• 17. What temporarily stores a small amount of
  data in memory?
• _________________________
• 18. What acts like a buffer but the data is not
  necessarily temporary and also requires
  intelligent management?

12. I/O Port 10 13. Device controller
10 14. SCSI 10 Small computer system
interface 15. Interrupt 10 16. Stack
processing 10 17. Buffer 18. cache