Tuesday, August 16, 2011
TypiNg..
Friday, August 12, 2011
SoftwAre..
Software...
All of us know what does software is and how big is its contributions in our computers.
What is Software?
-Programs that make a computer run.
-Sets of instructions which tell the computer what to do to come up with the desired result.
Concept
-The hardware needs the software to be useful; the software needs the hardware to be useful.
-When the user needs something to be done the computer, he/she gives instructions in the form of software to computer hardware.
-These instructions need to be written in a language that is readily understood by the computer and that language is called the machine language.
Machine Language
-A language that is easy to understand for the uPs.
-Though readily understood by microprocessors, it is very difficult to write in for human programmers.
-Language translators were invented to overcome this problem.
Language translators
-Human programmers write programs in a language that is easy to understand for them.
-They use language translators to convert that program into machine language.
Types of Software..
System Software -programs that work automatically once you open or boot your computer.
-their task include loading and running programs, checking and protecting computers and controlling hardware.
-it is the control software that operates the hardware and allows the application to run.
*Operating Software (OS)
-perform its work invisibly to control the internal functions of a computer.
-interacts directly with the computer hardware.
Examples:
Windows XP- home and business
Windows 2000- business network use
Mac Operating System- GUI, graphics
OS/2 Warp- commercial work
UNIX- general purpose, mainframe
Linux- alternative to windows
Dos- command driven
*Operating System
-run in the background without the users being aware of it.
-controls the inputs, outputs, interrupts, and storage of files as requested by the applications software.
Application Software
-programs installed in the computer.
-enables the user to do different tasks.
-used for a specific purpose or application.
· Word processing
· Numerical analysis and storage
· Recording of data
· Designing and graphics
· Image processing
· Presentations
· Desk top publishing
· Web design
Word Processors
-Used in creating letters, memos, reports and other write- ups.
Examples:
WordStar MS Word WordPerfect
Electronic Spreadsheet
-software that are equipped with rows and columns where data may be entered and processed automatically or tabulated.
Examples:
VisiCalc Quattro Lotus 123
Supercalc Ms Works Excel
*VisiCalc- the first Spreadsheet
Database
-programs that can be use to organize data in a customized way.
Examples:
Ms Access Foxbase Oracle
Dbase MySQL Lotus Approach
Utility Programs
· Virus checking and cleaning.
· Security using identification and passwords.
· File and hard disk management for efficiency and storage.
· Customizing the computer to the user’s requirements.
· Setting peripheral devices to the user’s requirements.
Utilities
-computer programs that perform a particular function related to computer system management and maintenance.
Examples:
1. Anti-virus Software
2. Data comprehension Software
3. Disk optimization Software
4. Disk backup Software
5. Disk cleaner
Entertainment Software
-specially designed for fun and relaxation.
Examples:
Real Player WinAmp QuickTime
Windows Media Player VLC Media
Multimedia, Desktop and Image Editing Software
-used to create graphics and publications and to edit images.
Examples:
Adobe Photoshop Adobe Pagemaker
Corel Draw Publisher
Now, we already understand how important the software is, so without it, our computers will not be able to run and operate,
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