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Welcome students, I look forward to working with you this semester, check this site frequently for updates and assignments.
~ JON ~
| Chapter 3 Notes |
| Chapter 4 Notes |
| Chapter 5 Notes |
| Chapter 6 Notes |
| Chapter 7 Notes |
| Chapter 8 Notes |
| Chapter 9 Notes |
| Port Identification |
~ IST ~
• Computer fluency
o To be computer fluent you must: Understand a computer’s capabilities and limitations, Know how to use a computer
• Being Computer Savvy
o Make good purchase decisions
o Maintain your computer
o Keep abreast of changes in technology
o Understand the real risks
o Use the Internet wisely
o Avoid online annoyances
o Avoid hackers and viruses
o Protect your privacy
• Challenges Facing a Digital Society
o Computer use ethics
o Privacy risks
o Personal data collection
o Monitoring e-mail
o Copyright infringement
o Software piracy
• Computer functions
o Input Data
§ Devices Include
· Key Board
· Mouse
· Scanner
· Camera, ect
o Process Data
§ Mother board – all devices connect to this main base located inside the system case
§ RAM – Random Access Memory
§ CPU (Central Processing Unit)
· Processor
o Pentium 3, 4, Duo Core
o Athlon
o Centrino
o Output Information
§ Devices Include
· Monitor
· Speakers
· Pinters, ect
o Store data and Information
§ Bites and Bytes
· Bit – is a one (1) or a zero (0) used in series to create letters numbers and special charators
o A series of bits such as 00110100 represnts a charator, in this case the number “4”
|
NAME |
ABBREVIATION |
NUMBER OF BYTES |
RELATIVE SIZE |
|
Byte |
B |
1 byte |
Can hold one character of data. |
|
Kilobyte |
KB |
1,024 bytes |
Can hold 1,024 characters or about half of a typewritten page double-spaced. |
|
Megabyte |
MB |
1,048,576 bytes |
A floppy disk holds approximately 1.4 MB of data, a CD holds 700 MB of information,or approximately 768 pages of typed text. |
|
Gigabyte |
GB |
1,073,741,824 bytes |
A DVD holds 4.7 GB of information most hard drives hold # GB value |
|
Terabyte |
TB |
1,099,511,627,776 bytes |
Roughly 1024 times the size of 1 GB, or 217 DVD’s worth of information |
|
Petabyte |
PB |
1,125,899,906,842,624 bytes |
§ Storage devices Include
· Hard Disk Drives
· Floppy Disk
· CD/DVD burners
· Flash Drive, Thumb Drive
• Computer hardware and software
o Hardware are physical pieces of equitpment that connect to your computer
o Software are the programs and operating systems that run the hardware
§ System Software
· Mac OS X
· Windows (98, xp, vista)
§ Application Software
· Microsoft Office
· Photoshop
• Specialty Computers
o PDA - are small, one-task-at-a-time computers, that serve highly mobile users
o Server - Servers are powerful computers that control networks and often use Unix as an operating system.
o Mainframe - are large, expensive multifaceted computers designed to handle thousands of users.
o Super Computers - are large, fast computers assigned to concentrate on specific scientific tasks.
o Microcontrollers - are specially designed computer chips that reside inside other devices such as your car or your electronic thermostat in your home.