umojannguvu.blogspot.com

Friday, 25 December 2015

Computer - Data and Information

What is data?

Data can be defined as a representation of facts, concepts or instructions in a formalized manner which should be suitable for communication, interpretation, or processing by human or electronic machine.
Data is represented with the help of characters like alphabets (A-Z,a-z), digits (0-9) or special characters(+,-,/,*,<,>,= etc.).
Raw Computer Data

What is Information?

Information is organised or classified data which has some meaningful values for the receiver.
Information is the processed data on which decisions and actions are based.
For the decision to be meaningful, the processed data must qualify for the following characteristics:
  • Timely - Information should be available when required.
  • Accuracy - Information should be accurate.
  • Completeness - Information should be complete.
Computer Information

Data Processing Cycle

Data processing is the re-structuring or re-ordering of data by people or machine to increase their usefulness and add values for particular purpose. Data processing consists of basic steps input, processing and output. These three steps constitute the data processing cycle.
Computer Data
  • Input - In this step the input data is prepared in some convenient form for processing. The form will depend on the processing machine. For example, when electronic computers are used, the input data could be recorded on any one of several types of input medium, such as magnetic disks, tapes and so on.
  • Processing - In this step input data is changed to produce data in a more useful form. For example, pay-checks may be calculated from the time cards, or a summary of sales for the month may be calculated from the sales orders.
  • Output - Here the result of the proceeding processing step are collected. The particular form of the output data depends on the use of the data. For example, output data may be pay-checks for employees.


Computer Data Processing

0 comments:

Post a Comment

Drop Down MenusCSS Drop Down MenuPure CSS Dropdown Menu

CHAT BOX

Post zilizo tumwa

Recent Posts Widget

Tangaza Biashara yako mtandaoni

TANGAZA BIASHARA NAMI HAPA KWA BEI NAFUU KABISA

Unaweza kutangaza biashara yako sasa na hlmservice pia uta pata kujua mambo mengi ambayo mbali na biashara yako unaweza ukatengeneza pesa kwa namna moja ama nyingine kama jinsi nilivo elezea katika Makala za nyuma hapo

Wafanya biashara wengi wanatumia mda mwingi namna gani ya kukuza biashara zao ,Ili uweze kufanikiwa kwa kiasi kikubwa unahitaji kuitangaza biashara yako ili kuwa na mtandao mkubwa na wateja wako ,ni vyema ukatangaza biashara yako katika mitandao ili bidhaa zako zijulikane kwa haraka na upesi .

Pia wewe mfanya biashara ukiitaji kuwa na blog yako wasiliana nami kwa mawasiliano hapo chini , bei ni nafuu kabisa

Pia ukiitaji kuitangaza biashara yako kupitia blog yangu bei ni ndogo kabisa huu ni wakati wako wewe mfanya biashara

+255758061575 & +255684860817

henrylameck@gmail.com

henrylameck90@yahoo.com

Tukuyu Tour & Safari

Vadacom Ni Zaidi

Tembelea g2g.fm upate movie Kali

Tembelea g2g.fm upate movie Kali

Kilimo Kwanza

Hlm servise

Latest movie

Movies

Computer books

Computer books