Chapter 2

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chapter 2: system unit: processing and memory.

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Roza's CSC101 Knowledge Base

Future Trends

3D chips

Terascale cumputing

Silicon phononics

Optical computer

Quantum computing

Carbon nanotubes used in many products today

Nanotechnology

The System Clock and the Machine Cycle

Expansions

Express card

Expansion cards

Expansion slots

Memory

Flash memory

ROM

Registers

Ram

Memory refers to chip based storage

Word Size and Cache Memory

Cache memory

Word size

The CPU

Quad core CPU

Dual core CPU

Central processing unit

The Motherboard

Mother board or system board

Ciruit board

Computer chip

Inside the System Unit

System unit

Digital Data Represenation

Prefixes

Byte

Bit

Main topic

Making Computers Faster and Better Now and in the Future

Clean out dust once or twice a year

Scan for viruses and spyware

Error check and defragment

Delete temporary files

Improving performance today

Ports and Connectors

Fans, Heat Sinks, and other cooling Components

Bus

Bus candwidth

Bus speed

Bus width

Processing Speed

Benchmark tests

Alternate measure of processing speed is the number of instuction

CPU clock speed

Representing Programs: machine language

Most programs are written in other programing languages

Machine language

Coding System for Text- Base Data

Audio data

Graphics

Replacing ASCII as the primary text- coding system

Unicode

ASCII and IBCDIC

The Binary Numbering System

Binary numbering system

Decimal numbering system

Numbering System

Data and Program representation