Data

Computer (Primary Classes)

Data

Data is a raw fact that needs to be processed. it is called raw and unorganized facts. It is useless until it is processed and well organized. TYPES OF DATA 1 numerical data: These are mainly numbers such as 0,1,2,3,4,5,6,7,8,9 Alphabetical data: These are mainly letters A_Z and other words formed these letters e.g. father, […]

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Geography

Analysis of Data

Analysis of Data  Examining the numerical figures in detail. Techniques of analysing Data Calculation of Percentages -If in the study of a farm 10 hectares are devoted to coffee, what is the % of the area under coffee? 10/100×10% The table below shows the number of tourists who visited Kenya from various parts of the

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Geography

METHODS OF RECORDING DATA

METHODS OF RECORDING DATA  Methods of storing information to avoid losing it. Note Taking -Writing in a note book what is being observed, answers during interviews and then notes are compiled in school or office when writing report. Filling In Questionnaires -Filling answers in questionnaires which are responses from a respondent by an interviewer or

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Geography

METHODS OF COLLECTING DATA

METHODS OF COLLECTING DATA (STATISTICAL TECHNIQUES)  Observation -Use of eyes to observe features or weather then information is recorded immediately e.g. cloud cover, rocks, soil, land forms, vegetation, etc. Advantages Gives 1st hand information which is reliable. Relevant material to the study is collected. Time saving since one doesn’t have to look for data in many

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Computer-Studies

DATA AND INFORMATION

DATA AND INFORMATION WHAT ARE DATA AND INFORMATION? Data are raw facts. This means that when facts are collected about people, places, items, and events, animal and so on, data is obtained. Therefore data can be said to be the raw materials for producing information. Information is referred to as processed data, i.e. data that

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DATA PROCESSING PAST QUESTIONS (SSCE)

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Computer-Studies

DATA PROCESSING

Data processing is the collection and manipulation of items of data to produce meaningful information. Data processing is the process of manipulation data to generate information.  Data processing methods are techniques used to process/sort different types of data.   TYPES OF DATA PROCESSING (1) Batch Processing (2) Online Processing (3) Real-time Processing (4) Multi Programming

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Computer-Studies

DATA AND INFORMATION

What is Data: Data is the raw material for data processing. It is a representation of unprocessed facts about people, places, events, objects, or transactions recorded from which information can be prepared. It can be represented with the help of character like alphabets (A-Z, a-z), digits (0-9) or special characters (+,-, /, *, <,>, =).

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Computer-Studies

DIGITIZATION OF DATA

DIGITIZATION OF DATA What is Digitization of data? Digitization is the process of converting analog information into a digital format. For example, scanning of analog source like printed photos or taped text, images or videos into computers for editing. Digitizing is the primary way of storing images in a form suitable for transmission and computer

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Computer-Studies

DATA AND INFORMATION

DATA AND INFORMATION What is data? Data refers to raw facts yet to be processed. It is a fact, number or text that can be processed by a computer. Data has no meaning to the user unless processed to get meaningful information.   Source of data Data can be obtained by any one or more

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Computer-Studies

Concept of Data Processing

Data processing is the process of converting raw fact (data) to information (processed data). It embraces the techniques of sorting, relating, interpreting and computing items of data in order to provide meaningful useful information.   Steps in data processing i) Preparation of source document: Here, figures, facts are obtained through different sources like name, age,

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Computer-Studies

DATA PROCESSING

DATA PROCESSING Data processing is the collection and manipulation of items of data to produce meaningful information. Data processing is the process of manipulation data to generate information.  Data processing methods are techniques used to process/sort different types of data.   TYPES OF DATA PROCESSING (1) Batch Processing (2) Online Processing (3) Real-time Processing (4)

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