Unit 5- Computer Software

 Identify how hardware & software interact  Explain how a software program works  Describe the difference between application and system software  Describe the software distribution process

 What is Hardware? ◦ Hardware is physical ◦ You can touch it  What is Software? ◦ Instructions to perform a task  Programming code ◦ Program is another name ◦ Program gets loaded into RAM  Both work together & interact

 Working Together

 Computer processes data by applying rules ◦ Algorithm  Steps to perform a task  What are the steps to doing laundry?

 Develop algorithm into flowchart  Programmer writes code  Beta testing ◦ Evaluated by actual users ◦ Does it meet requirements? ◦ Report bugs  Debugging ◦ Fixing the problems

 Applications ◦ Helps you do a task  Systems ◦ OS & utility programs ◦ Allows you to interact w/ hardware ◦ Manages computer resources

 AKA Productivity Software  Word, Excel, PowerPoint, PhotoShop, IE, etc.

 Runs on top of system software  Performs a specific function ◦ Word processing ◦ Spreadsheets ◦ Presentations ◦ Databases ◦ Graphics ◦ Other

 What are the two types of software categories? ◦ Application & System  Describe hardware. ◦ Physical device  What’s another name for software? ◦ Programs  A new game has been developed. Who made it? ◦ Programmer  Who tests it? ◦ Beta tester/user  What process fixes all the problems? ◦ Debugging

 Create, edit, format, print documents  Text editor  Word, Word Perfect

 Evaluate & calculate data  Worksheet, workbook, cells, functions, formulas  Excel, Lotus 1-2-3, Quattro Pro

 Organize & present information  Slide show  Present to audience  PowerPoint, Corel Presentations

Slide Notes Page

 Collection of info organized for quick retrieval  Create, maintain, provide access to data  Keywords: ◦ Table ◦ Records ◦ Fields ◦ Query  What business would use it & what info?  Access

 Pictures  Photoshop  Formats ◦ Tiff, jpg, gif, bmp ◦ Each has different qualities  Tiff BEST but not browser compatible

 Select  Zoom  Text  Draw Shapes  Erase

 Multimedia- Video, Music, Animation ◦ Mpg, mp3, wav  ◦ Windows Mail/Outlook ◦ Eudora (one of the 1 st )  Browser ◦ IE, Chrome, Opera, Firefox

 What was one of the 1 st programs? ◦ Eudora  A record can be found in which program? ◦ Database  Name some picture formats. ◦ Jpg, gif, bmp, tiff  Name some multimedia formats. ◦ Mpg, mp3, wav  Which program can calculate data? ◦ Spreadsheet

 What is the highlighted area called?  Record

 Manage resources, files  OS ◦ Communicates between user & hardware  GUI  Utilities ◦ Antivirus ◦ Backup ◦ File management (more on next slide)

 Backup ◦ Saves data on another drive  Antivirus ◦ Protects PC from virus damage ◦ Subscription ◦ Scheduled Scans

 Defragmentation (example) Defragmentation ◦ Files are all over the place ◦ Defrag places parts of a file closer together  Disk Cleanup ◦ Frees up disk space ◦ Deletes Recycle Bin & temp files  File Compression ◦ Makes one large file smaller  Disk Compression ◦ Squeezes files on HD

 Licensing ◦ Single-user (per machine) $$$ ◦ Network license (installed on server) $$ ◦ Site license (installed on PC) $  Web applications (SaaS) ◦ Login online ◦ Google Docs  Upgrade existing software to new version $$ ◦ New features & better compatibility ◦ Like a new version of Office

 Updates/Patches/ Service Packs ◦ Fix errors ◦ Change minor features ◦ Get from manufacturer’s web site  Version  Windows 7 SP2

 Freeware ◦ Free software to download ◦ Owner has copyright ◦ For personal use  No rights for you to distribute  Shareware ◦ Trial period ◦ Pay after that

 What is the purpose of defrag? ◦ Moves parts of a file closer for faster access  Which software is a trial version? ◦ Shareware  Where is the best place to get a download that will fix a security hole in Windows? ◦ Microsoft (manufacturer of program)  Which utility option will squeeze files on a HD closer together to create more room? ◦ Disk compression

 To use software legally, you must have what? ◦ License  Which software is free for personal use only? ◦ Freeware  What is a patch? ◦ An update that fixes an error in a program  Which utility option will delete the Recycle Bin & temp files? ◦ Disk cleanup  What protects a PC from viruses? ◦ Anti-virus software

Unit 5- Computer Software