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Unformatted text preview: self, and a leveltwo cache (Known as L2 cache) is external, typically made up of SRAM (static
RAM) chips on the motherboard. A static RAM chip requires power to hold its
content and has access times in the 10 to 30-nanosecond range. Static RAMs do
not require refresh circuitry as do dynamic RAMs, but they take up more space
and use more power.
Pentium family chips
Typical clock speeds
Pentium II Processor 120, 133, 150, 166 and 200 MHz.
with MMX 166,200 and 233 MHz. 233, 266, 300, 333, 350, 400, and
Pentium III Processor
450, 500, 750 and 800 MHz.
Pentium IV Processor
1 GHz and higher
Figure 20.3. Typical clock speeds of microprocessor chips in the Pentium family.
The Pentium Processor with MMX technology and the Pentium II Processor chips
have 57 new instructions, as well as data types, as compared to the previous Intel
microprocessor chips. These instructions and data types are mainly for multimedia
enhancements enabling these chips to provide increased performance on a wide
variety of multimedia and communications applications. Similarly,, the Pentium III Processor chip has additional new instructions enabling advanced imaging, 3D,
streaming audio and video, and speech recognition applications. Thus with a PC
based on Pentium III Processor it will be possible to
1. View and manipulate higher resolution and higher-quality images than with
previously available PCs,
Support high-quality audio, MPEG2 video and simultaneous MPEG2
encoding and decoding, and
Have reduced CPU utilization for speech recognition, as well as higher
accuracy and faster response time.
Virtually all PCs of today give users the flexibility to enhance the functionality of
a basic configuration and are said to have an open architecture. For this, the
system unit of a PC has expansion slots in which a wide variety of special-function
add-on boards (also called add-on cards) can be plugged in. These add-on boards
contain the electronic circuitry for a wide variety...
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This document was uploaded on 04/07/2014.
- Spring '14