1. Coverage for Computer 6
To 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 well have a quiz. Next week well have a Review, both HELE and Computer.Study hard!
Prepared by: Ms. Requiso
5. What is computer?
6. computer
Is an electronic device, operating under the control of instructions stored in its 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 numbers
list of students names
a set of keywords jotted during a speech
9. Information
refers 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 Data
Interpretation and classification of data
Recording of Data
Performing basic mathematical operations
Summarizing the results
12. Data processing is a routinely activity of all people. Its 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 cycle
Input
Process
Output
15. TYPES OF DATA PROCESSING
Manual Data Processing
Manual mechanical data processing
Electronic 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 its 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 its 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 - Hardware
Refers to the physical componentsof the computer system. It is the tangible part of the system which includes input, process, output and storage device.
23. Input devices
Used 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.
Mouse
Is a pointing device that is move around the computer screen to select a command.
Keyboard
25. Joystick
helps you control the movement of people and objects in many computer games.
Scanner
Works like a photocopy machine. It allows you to transfer pictures and photographs to your computer.
Microphone
Can 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 device
Are 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 Devices
Device 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 disk