MODULE 1 IT ERA.pdf

Evolve. Adapt. Overcome. CEFI is now ready. MODULE 1: INTRODUCTION TO DATA PROCESSING COMP100: Computer Fundamentals MONICA AMPARO, MIT...

Evolve. Adapt. Overcome. CEFI is now ready. MODULE 1: INTRODUCTION TO DATA PROCESSING COMP100: Computer Fundamentals MONICA AMPARO, MIT Program Chairperson, Information System Program  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. DATA PROCESSING Manipulation of data into a more useful form. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. DATA PROCESSING CYCLE INPUT PROCESSING OUTPUT No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. EXPANDED DATA PROCESSING CYCLE ORIGINATION INPUT PROCESSING STORAGE OUTPUT DISTRIBUTION No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. CATEGORIES OF DATA PROCESSING Mechanical Data Processing – combination of manual procedures and mechanical equipment (typewriter and calculator). Electronic Data Processing – different type of input, output, and storage devices may be interconnected to an electronic computer to process data. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. AREAS OF DATA PROCESSING Business Data Processing (BDP) - business data processing is characterized by the need to establish, retain, and process files of data for producing useful information. Scientific Data Processing (SDP) - data processing involves a limited volume of input and many logical or arithmetic calculations. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. DATA PROCESSING OPERATIONS RECORDING- refers to the transfer of data onto some form or document. VERIFYING- since recording is usually a manual operation, it is important that recorded data be carefully checked for any errors. DUPLICATING- this operation consists in reproducing the data onto many forms or documents. CLASSIFYING- this operation separates data into various categories. SORTING- arranging data in specific order. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. DATA PROCESSING OPERATIONS CALCULATING- arithmetic manipulation of the data. SUMMARIZING AND REPORTING- a collection of data is condensed and certain conclusions from the data are represented in a meaningful format. MERGING- this operation takes two or more sets of data, all sets having been sorted as the same key. STORING- placing similar data into files for future reference. RETRIEVING- recovering stored data and/or information when needed. FEEDBACK- comparison of the output(s) and the goal set in advance. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. METHODS OF PROCESSING DATA BATCH PROCESSING- a technique in which data to be processed or programs to be executed are collected into groups to permit convenient, efficient, and serial processing. ONLINE PROCESSING- the term on-line refers to equipment or devices under the direct control of the CPU of the computer. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.  COLLEGE OF INFORMATION SYSTEM Calayan Educational Foundation, Inc. METHODS OF PROCESSING DATA REALTIME PROCESSING- method of data processing which has the capability of a fast-response to obtain data from an activity or a physical process, perform computations, and return a response rapidly enough to affect the outcome of the activity or process. DISTRIBUTED PROCESSING- the most complex level of computer processing, distributed processing, generally consists of remote terminals linked to a large central computer system to help the user conduct inquiries about accounts, process jobs, or other data processing operations. No part of this material may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, mechanical, photocopying, recording or otherwise, without permission in writing from the author or lecturer.