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Computer components

Computer components

Skills: none

IT concepts: computer components (input devices, output devices, memory, storage and CPU), network application vs. stand-alone application, information flow, operating system, application program, program file vs. data file, embedded system, general purpose computer, RAM, ROM, hardware cost trend

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.


Where does this topic fit
Where does this topic fit?

  • Internet concepts

    • Applications

    • Technology

    • Implications

  • Internet skills

    • Application development

    • Content creation


Computer components1
Computer components

CPU

Input

devices

Memory

Output

Devices

Storage devices







Power is off
Power is off stand-alone application.

Store both data and program files

Store both the OS and application programs

Operating system

WP

Prog

DB

Prog

SS

Prog


Power on copy os to memory bootstrap
Power on – copy OS to memory (bootstrap) stand-alone application.

Operating system

Operating system

WP

Prog

DB

Prog

SS

Prog


Os displays the login screen
OS displays the login screen stand-alone application.

Keyboard

Display

Operating system

Operating system

WP

Prog

DB

Prog

SS

Prog


After login os displays the desktop
After login, OS displays the desktop stand-alone application.

Display

Operating system

Operating system

WP

Prog

DB

Prog

SS

Prog



Copy word processing program into memory
Copy word processing program into memory document?

Mouse

Display

Operating system

1

WP

Prog

2

Operating system

WP

Prog

DB

Prog

SS

Prog


Wp program displays a blank document
WP program displays a blank document document?

Display

Operating system

WP

Prog

Operating system

WP

Prog

DB

Prog

SS

Prog


Enter and display the document
Enter and display the document document?

Keyboard

Mouse

Display

Operating system

WP

Prog

WP

Doc

Both programs and data

Operating system

WP

Prog

DB

Prog

SS

Prog


Print the document
Print the document document?

Mouse

Printer

Operating system

WP

Prog

WP

Doc

Operating system

WP

Prog

DB

Prog

SS

Prog


Save the document
Save the document document?

Mouse

Display

Operating system

WP

Prog

WP

Doc

Operating system

WP

Prog

DB

Prog

SS

Prog

WP

Doc


Turn power off
Turn power off document?

Operating system

WP

Prog

DB

Prog

SS

Prog

WP

Doc



Special purpose computer document?

General purpose computer

Programs in fixed, read only memory (ROM)

Programs in volatile, random access memory (RAM)


A few questions document?




What is the input device on the iPad tablet computer? document?What other input and output devices would you like to see on a tablet computer?Is the storage capacity of your computer greater or less than the memory capacity?What is the cost trend for memory, storage and CPU chips?Why would you want more memory on your next computer?Why would you want more storage on your next computer?


Computer components2

Computer components document?

Skills: none

IT concepts: computer components (input devices, output devices, memory, storage and CPU), network application vs. stand-alone application, information flow, operating system, application program, program file vs. data file, embedded system, general purpose computer, RAM, ROM, hardware cost trend

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.


Connectivity speed in context
Connectivity speed in context document?

CPU

8 GB/s

Internet

download

4 Mb/s

Memory

1 Mb/s

Internet

upload

30 plus MB/s

Storage device


HD, Win XP desktop document?

HD, Win Vista laptop

SSD, Win 7 laptop

ATTO disk benchmark:

SSD speed increase


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