A. Computer Basics. 1.00 Examine the role of hardware and software. Unit Objectives: 1.01-1.04. What Is A Computer?. An electronic device that receives data, processes data, stores data, and produces a result (output).
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1.00 Examine the role of hardware and software.
Keyboard and Mouse
Software: the intangible set of instructions that tells the computer what to do; know as programs or software programs.
Two types: application and system software programs
Data: information entered into the computer to be processed, which consists of the following:
Text, numbers, sounds, and images
People: the users of the computers who enter the data and use the output.What Is AComputer System?
a pen or stylus for entering data
- Data can be transferred to a desktop or laptop computer
Memory: found on the motherboard; short term and long term.
Output device: hardware that allows your computer to communicate with the user
Storage device: allows you to store or retrieve informationInput, Output, & Storage Devices
Printer: gives you information from the computer in printed form.
Speakers: allow you to hear voice, music, and other sounds from your computer.
Modem: allows you to use your computer to communicate with other computers.Computer Output Devices
Gives a printed image in a pattern (matrix) of tiny ink dots.
Less expensive and not as clear
Better quality of printed document
Machine uses an ink cartridge and a printing element to print a finer image on the paper.
Best quality of printed documents
Laser beam and an ink toner cartridge are used to produce the images.
QuickThree Types of Printers
- They are only the size of a 3 inch disk but can hold as much as 1 gigabyte of data
Can be used to replace data that may have been lost on the hard drive
look similar to audio tapes.
Holds more than Floppy
Optical discs: use laser technology to read and write data on silver platters.
CD-ROM (Compact Disk Read-Only Memory) can store up to 800MB of information/data.
You can only read data from a CD
You can store data on a CD only if you have a CD Burner and writable CDs (CD-R or recordable CD-ROM)
DVD (Digital Versatile Disk) is the size of a regular CD and can be played in a regular CD or in a DVD movie player.Types of Storage Devices
program that allows you to create, edit, and print text documents
Report, flyer, memo
Numbered Rows and Lettered Columns
Intersection of them = cell
Grade book, financial info
Lets you set up an electronic filing systems
Enter text and numbers
Find, search, and printer info in different ways
Address book, Card CatalogBusiness Software
Works with your modems or network hardware and allows your computer to communicate with other computers.
Exchange computer files and email
Uses pictures or images to help communicate messages.
Multimedia: combines text, graphics, animation, video, and audio.
Clip art: graphical images to be added to documents
Desktop Publishing: uses both pictures and words to give you the ability to create documents
Newsletters and brochuresSoftware
Lotus SmartSuiteIntegrated Software