Computer Operating Systems

1.   Electricity quiz

2.    Discuss Chapter 5 CPU and motherboard concepts

     Two factors to consider in understanding CPU and motherboard performance are the size and speed of the various      electrical buses

     The size (or width) of a bus, which controls how much data can flow through at any given time is measured
     in _______.

     The speed of a bus), which controls how fast an electrical circuit cycles around a bus is measured in ______.

     The system clock regulates the general speed of an electricity on a motherboard. Individual components may exceed this speed, but the motherboard may require special technologies for the fastest components to successfully communicate with the slowest.

Sizes and Speeds of common buses on a motherboard.

The general path between slots, motherboard chipset, and RAM is called the ___________ bus. In older
motherboards, this bus also connected directly to the CPU.
(Pseudonyms for this bus include ___________, _____________, ______________)

The size of this bus for the original 8086 CPU was _______
The speed of this bus for the original 8086 CPU was _____
The size of this bus for today's P IV and Athlon motherboards is _______
The speed of this bus for today's PIV and Athlon motherboards is ______

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The path between the CPU and any internal (L1) memory cache is called the ___________
or ___________ bus.

The size of this bus for the original 8086 CPU was _______
The speed of this bus for the original 8086 CPU was _____
The size of this bus for today's P IV and Athlon motherboards is _______
The speed of this bus for today's PIV and Athlon motherboards is ______

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The path between the CPU, any external (L2, L3) memory caches and RAM on newer motherboards
(Pentium and later) is called the __________ or ______________ bus. Since this bus physically
controls the amount of RAM that a CPU can address, it is also sometimes called the _____________ bus.

The size of this bus for the original 8086 CPU was _______
The speed of this bus for the original 8086 CPU was _____
The size of this bus for today's P IV and Athlon motherboards is _______
The speed of this bus for today's PIV and Athlon motherboards is ______

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 In order for the CPU and its cache on the (1)_________ bus to communicate with external caches and RAM
on the (2)_______ bus, a chip setting called the (3)_____________ was introduced in Pentium motherboards.

To determine the speed range of the CPUs supported by a motherboard, you can multiply the speed of the
(2) ________ bus by (3) _____________.

3. Complete lab exercise listing bus sizes and speeds for various CPUs.

Different types of CPUs require different interfaces called ___________, that connect them to
the motherboard. (See A+ in Depth, p. 195)

The following links may be useful for the Meyers CPU labs:

MCMCSE Study Guide- Processors

See Geek.com (http://www.geek.com/procspec/procspec.htm) for a near-complete listing of Intel CPUs.
See Erols com (http://users.erols.com/chare/sockets.htm) and CPU Socket and Slot Criteria for pictures and info about CPUs, sockets, and slots.

Homework

Continue studying A+ in Depth, Chapter 5 and complete the Meyers lab exercises for 2.1 and 2.2.

Answer the following questions about shopping for a motherboard, using the early portion of the chapter.

In addition to bus speeds and widths, what factors contribute to one type of CPU delivering faster performance
than another? (See A+ in Depth, p. 183).

_______________, ____________, _______________, ______________, ______________

When you buy a motherboard to build your own system, the following components may be variables to
      consider:

      ___________________________                 __________________________

      ___________________________                 __________________________

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      ___________________________                 __________________________

     ___________________________                  __________________________

     ___________________________                 ___________________________