Speed measured by
Component
Units
Description
GHz (billions of cycles)
Clock speed
Hertz indicates the time it takes to complete a cycle.
CPU
The speed at which data can move across the bus.
Motherboard Bus speed
MHz
The time it takes for data to be transferred from memory to system measured in Megabytes. The time it takes for the drive to locate the data to be accessed. The time it takes for data to be transferred from disk to system.
Mb/s (millions of bytes per second)
Data transfer rate
RAM
Access time
ms (millisecond)
Hard Disk
Data transfer rate
MBit/s
Other Computing Devices A personal computer is designed to be a general-purpose device, able to solve many different types of problems. As the technologies of the personal computer have become more commonplace, many of the components have been integrated into other devices that previously were purely mechanical. The definition or description of what defines a computer has changed. Portability has been an important feature for most users. Here is an overview of some trends in personal computing. Information Systems for Business and Beyond (2019) pg. 35
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