This document provides an overview of computers and data processing. It discusses what a computer is, the components of a computer system including hardware like the CPU, input/output devices, and storage. It describes the cycle of data processing as input, process, output. It discusses different types of data processing like manual and electronic. It classifies computers according to the data they handle, their purpose, and size. The document is intended to help students in Grade 6 prepare for an upcoming test by studying key concepts about computers and data processing.

1. Coverage for Computer 6To all Grade VI Saint Joseph

2. Saint Ezekiel

3. Saint Nicholas

4. Saint AugustineThis is our coverage for our 1st periodical test, and also for our Quiz bee on Wednesday, on Thursday we’ll have a quiz. Next week we’ll have a Review, both HELE and Computer. Study hard!Prepared by: Ms. Requiso

5. What is computer?

6. computerIs an electronic device, operating under the control of instructions stored in it’s own memory unit that can accept data, process data mathematically or logically and produced meaningful results called information.

7. Describe the following pictures?

8. What is Data?Data – are raw facts or figures. They are made up letters, numbers and other symbols or special characters.can be list of phone numberslist of students namesa set of keywords jotted during a speech

9. Informationrefers to data that have been processed into a form that is meaningful and useful.

10. Data Processing – is the manipulation and transformation of data into meaningful results.

11. Examples of the operations used in data processing include the following:Gathering DataInterpretation and classification of dataRecording of DataPerforming basic mathematical operationsSummarizing the results

12. Data processing is a routinely activity of all people. It’s what we do to gain and develop new knowledge. It is actually a cycle. As you read you will understand why.

13. television books Newspaper radio

14. 3 data processing cycleInput ProcessOutput

15. TYPES OF DATA PROCESSINGManual Data ProcessingManual – mechanical data processingElectronic data processing

16. Manual Data Processing – is characterized by the absence of any machine in processing data.The person involved does all the activities – from accumulation of data, their manipulation and the creation of results

17. Manual mechanical data processing- devices are used In processing but human intervention is needed to produce results.

18. Electronic data processing – refers to the use of computer in processing data.

19. Why is a computer so powerful?It is fast – In a computer, operations occur through the use of electronic circuits contained on a small chips.It is Reliable – A human being can grow tired, a computer cannot.It is Accurate – the computer calculates values and moves data within locations in the computer.

20. 4. It stores large amount of data – storage capability is another reason why computer are so powerful.5. It has a numerous other capabilities – can recall data stored in it’s memory; it is capable of remote processing and simulation and simultaneous processing; it can communicate with another computer.

21. What computers cannot do?It is dependent on program – for a computer to perform the operations in the data processing cycle, it must be given a detailed set of instructions or steps that tell it exactly what to do.It cannot generate it’s own data – the computer is reliant on the input of the user.It is prone to viruses – The increase in number of computer viruses has already destroyed many programs in the past and has even affected the performance of some computer components and peripherals.

22. THE COMPUTER SYSTEM - HardwareRefers to the physical components of the computer system. It is the tangible part of the system which includes input, process, output and storage device.

23. Input devicesUsed to enter data into computer. These include keyboard, the mouse, joystick, scanners, and microphone.

24. is used to key In data into memory of the computer. It is used to type in commands of certain program.MouseIs a pointing device that is move around the computer screen to select a command. Keyboard

25. Joystickhelps you control the movement of people and objects in many computer games.ScannerWorks like a photocopy machine. It allows you to transfer pictures and photographs to your computer.MicrophoneCan capture sounds or voices for recording of effects.

26. Central processing unit (CPU)

27. “Is the heart and brain” of the computer. It contains the electronic circuits that actually cause the processing of data to occur. It directs the computer on where the data must be stored, what instruction to execute, how to perform requested operations, where to place the results.CPU

28. Output deviceAre used to give out processed data from the memory unit of the computer.Output unit devices are:1. Printer– produce hard copy converts electronic or digital text and images into printed form.2. Monitor – display the software being used and also the results obtained after data processing.3. VDU ( Visual Display Unit )4. CTR ( cathode ray tube )

29. Auxiliary Storage DevicesDevice keep instruction and data when they are not being used by the CPU.Auxiliary devices are:CD

30. DVD

31. Diskette

32. Flash drive

33. Hard disksoftwareSpecifies the sequence of operations and task to be performed.

34. Operating system (OS)Consist of one or more programs that manage the operations of computer.Examples of operating system:Windows 2000

35. Windows XP

36. Vista

37. Windows 73 Classification According to the data handlesAnalog computer