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Lesson 1: Computer Concepts – Part 1

Lesson 1: Computer Concepts – Part 1. Computer Systems Personal Computers Network server Desktop Laptop

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Page 1: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Lesson 1: Computer Concepts – Part 1

Page 2: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Computer Systems

Personal ComputersNetwork server

Desktop

Laptop

Page 3: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Desktop Computer Components

System UnitHouses the Central

Processing Unit (CPU)

PeripheralsThese are hardware items that are outside the system unit box, such as the keyboard, mouse, monitor, and printer.

Page 4: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Units of Measure

Bits/Bytes

Megahertz Resolution

Page 5: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Inside the System UnitPart 1

Page 6: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

A System Board

PCI expansion slots

ISA expansion slots

AGP video slot Microprocessor slot

RAM modules plug in here

Hard drive connections

Floppy drive connection

Page 7: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

The Microprocessor

A computer on a single silicon chip

Page 8: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Microprocessor Performance Clock speed Design Benchmarks

Performance/Cost trade-offs

Page 9: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Random Access Memory Your computer’s “workbench”

Also called Volatile Memory Locations of RAM

Main memory Cache Video

Page 10: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Cache RAM

Special, high-speed RAM to make the computer process faster

How much RAM do you need?Enough to run your application programs efficiently.

Page 11: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Disk Drives

Drive Types: Hard drive Floppy drive CD Zip drive DVD

Page 12: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

How Disk Drives Work

RAM Compared to disk drivesWorkbench memory – Storage memory

Page 13: Lesson 1: Computer Concepts – Part 1. Computer Systems  Personal Computers Network server Desktop Laptop

Lesson 1: Computer Concepts – Part 1