Practice 3.1 Match the Bus Type to Its Definition

For the A+ Certification exams, you should be able to identify the names and characteristics of moth erboard form factors, architecture, and components. Practice 3.1 Match the bus type to its definition. Not all of the definitions will be used. l. address bus a. Delivers command signals from the processor to devices. 2. control bus b. Connects directly to the CPU and provides communications to high-speed devices mounted 3. data bus closely to the CPU. ,---... 4. __I/O bus c. A circuit board with an abundance of slots along the 5. internal bus length of the board 6. __power bus d. Sends electrical power for small consumption devices, such as speakers, lights, and switches. e. Connects the processor to the expansion slots. £. Part of the integrated circuit inside the CPU. g. Connects the CPU with the main memory module. h. Moves data between components.

ATX LPX nanoBTX BTX microATX NLX flexATX microBTX picoBTX

~::S-~T

10.5" ~ lOS' ,------,1 ,------,1 r ~:---12.8"--->1 1-c:.f-----10.4/1 1+--8.8/1 -~ I~- 8.0/1 --4 A. ______B. c. ______D. ______

-~ I T I i 9.6 /1 9.6/1 9.6/1 1 1 1 I ... 12.0" ~ ~9 .6" ·1 I.. 7.5/1~ E. F. e.

Expansion card Bus riser card - =i= I Mouse \ Video 13.0/1

Bus riser I H. ______Line Keyboard Serial ports Parallel card out port

Back View

22 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc. Narne ______

Edge connector slides into "" riser card "'" T 10.0" to 13.6" I 1--.:---- 9 .0" ----~1 I.

Practice 3.3 Identify the following expansion technologies.

AGP PC Ie xl PCIe x4 PCI PCIe x16

0000000000000000000000000000000000000000000000000 00000000000 I I LI __----' 0000000000000000000000000000000000000000000000000 00000000000 A. ______

00000000000 0000000000000000000000000000000000000000000000000000000000000000000000 I I LI______~ 00000000000 0000000000000000000000000000000000000000000000000000000000000000000000

Front of 00000000000 0000000 adapter I I ~ card 00000000000 0000000 c.

00000000000 00000000000 I I I I 00000000000 00000000000 D. ______

000000000000000000000 00000000000000000000000000000000000000000 I I I I 000000000000000000000 00000000000000000000000000000000000000000

Copyright by Goodheart-Willcox Co., Inc. Chapter 3 Motherboards 23 Practice 3.4 Fill in the blanks for the statements about PCIe. The following terms may be used more than once or not at all. . "

2 32 AGP PCI-E 4 64 lanes PCI-X 8 250 parallel serial 16 500 PCI

1. PCIe is often confused with 1. 2. Another name of pcle is 2.

3. PCIe was designed to replace __I -Iand __. 3.

4. PCI uses data transfer and PCle uses data 4. transfer.

5. A PC Ie single lane consists of __pairs of conductors. 5. 6. A PCIe x 16 has __ lanes and a total of __pairs. 6.

7. The PCIe 2.0 standard can achieve a __Mbps data rate. 7. Practice 3.5 Match the parallel port technology with its definition. The following terms may be used more than once.

2MBps 50 kBps ECP standard 4MBps bidirectional EPP unidirectional

1. The original parallel port was __and had a data rate of 1.

2. An EPP parallel port is __ and has a data rate of _ _ . 2.

3. An ECP parallel port is __ and has a data rate of __. 3.

4. A(n) __parallel port is also referred to as the IEEE-1284 4. standard. 5. A(n) __parallel port can be used with devices other than 5. printers.

24 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc. Name ______Practice 3.6 Fill in the blanks for the statements about USB and FireWire. The following terms may be used more than once.

63 127 FireWire USB

1. Another name for IEEE 1394 is 1. 2. USB is capable of supporting __ devices. 2. 3. FireWire is capable of supporting __ devices. 3. 4. Data rates of 400 Mbps can be achieved with __. 4. 5. Data rates of 480 Mbps can be achieved with __. 5. Practice 3.7 Match the bus types to their definitions. Not all of the definitions will be used. 1. DMA address a. A memory address expressed in hexadecimal notation, which is used to identify a computer device. 2. __I/O port address b. A feature of some buses that allows data to be 3. __ IRQ transferred directly between two devices without the 4. __memory range address intervention of the CPU. c. An assigned section of memory used as a temporary storage area for data before it is transferred. d. Interrupts the processes taking place in the CPU and requests that the processor pay attention to a specific device. e. A combination of software and hardware that allows certain system devices direct access to the RAM.

Practice 3.8 Connect (draw a line from) the computer case connections to their appropriate headers on the motherboard.

PWR sw Spea ker RST SPK ~I~GGGG GGGGGG8 POW PWR HD Reset SW LED SW

PWR HDD LED LED

Copyright by Goodheart-Willcox Co., Inc. Chapter 3 Motherboards 25 26 Computer Service and Repair Study Guide Copyright by Goodheart-Willcox Co., Inc.