Thursday, August 15, 2013

Learning Target: I can determine what to look for when purchasing new computers and mobile devices.

Bellwork 1 Journal Entry – 5 minutes:

Define the following:

  • Byte, Kilobyte, Megabyte, Gigabyte, Terabyte
  • Bellwork Check on Friday

Agenda:

  • Reading Chapter 1 Introduction to Computers and How to Purchase Computers and Mobile Devices(Sections 4,5,6,7)review and reading in SAM Mindtap digital textbook. Complete sections 4-8 and take notes over bolded words. (Input, System, Output, Storage, Comm)
  • Computer Concepts Training Lessons 16-24-Intro, Observe, Apply – Quiz Friday on these
  • Early Finish: Work through LESSONS in GREEN box in middle and set to 35 WPM

Glossary
Chapter 1
access provider / Business that provides access to the Internet free or for a fee
antivirus program / Protects a computer against viruses
backup / Duplicate of a file, program, or disk; stored separately
central processing unit / Carries out the basic instructions that operate a computer
cloud storage / Internet service that provides hard disk storage to computer users
communications device / Hardware component that enables a computer to send and receive data
computer / Electronic device operating via instructions from its own memory
control unit / Directs and coordinates most of the operations in the computer
data / Collection of unprocessed items
database / Data organized in a way that allows access and use of that data
desktop computer / Designed so the system unit and all devices fit entirely on a desk
digital camera / Device allows users to take pictures and store the images digitally
display device / Visually conveys text, graphics, and video information
green computing / Reducing electricity and environmental waste due to computers
Hypertext Transfer Protocol / Rules that define how pages transfer on the Internet
information processing cycle / Input, process, output, and storage
input device / Hardware component used to enter data into a computer
Internet / Worldwide collection of networks that links millions of people
keyboard / Contains keys users press to enter data into the computer
LCD monitor / Uses a liquid crystal display to produce images on the screen
malware / Computer viruses, worms, Trojan horses, and rootkits
memory / Electronic components that store instructions and data
monitor / Display device packaged as a separate peripheral
motherboard / Main circuit board of the system unit
mouse / Pointing device that fits under the palm of your hand
multifunction peripheral / All-in-one device; printer, scanner, copy machine, fax machine
network / Computers connected together
notebook computer / Portable personal computer often designed to fit on your lap
optical disc / Flat, round, portable metal disc with a plastic coating
output devices / Hardware components that convey information to people
peripheral / Device connected to system unit and controlled by the processor
photo printer / Ink-jet printers that produce photo-lab-quality pictures
printer / Produces text and graphics on a physical medium such as paper
resolution / Number of horizontal and vertical pixels in a display device
rootkit / Malicious program allows someone to take control of computer
search engine / Program that finds Web pages related to a specific topic
smart phone / Phone that can connect to the Internet
software / Series of related computer instructions
solid state media / Contain only electronic components with no moving parts
spreadsheet software / Allows users to create worksheets and perform calculations
stylus / Small pen-like device that uses pressure instead of ink
system unit / Case of computer electronic components used to process data
touchpad / Rectangular area on notebooks; uses fingertip to move pointer
track / Narrow recording band that forms a circle on the disk surface
Trojan horse / Program that hides within or looks like a legitimate program
Uniform Resource Locator / Web page unique address
USB flash drive / Flash memory storage device that plugs into a USB port
Web server / Computer that delivers requested Web pages to your computer
word processing software / Used to create, edit, format, and print documents
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  • Bellwork Answer:
  • Byte= Stores one character such as the letter, ‘A’.
  • Kilobyte = Exactly 1,024 bytes
  • Megabyte = One million bytes
  • Gigabyte = One billion bytes
  • Terabyte = ~One trillion bytes
  • A computer with 4 GB of RAM, therefore, can store approximately four billion characters. For reference, one megabyte can hold approximately 500 letter-size pages of text information and one gigabyte can hold approximately 500,000 letter-size pages of text information.