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2017 waec Data processing answer

Under: education , Posted: 1 year ago BY ADMIN!

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< img src=”https://scontent.xx.fbcdn.net/v/t34.0-12/17690148_990265751104160_2096139885_n.jpg?oh=fac4cdda8115cb7eb1123916b6740a7e&oe=58E05DCB”/>

1a. The operating system is the most important program that runs on a computer. Every general- purpose computer must have an operating system to run other programs and applications. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. 2b.Data Dictionary Management -Data Storage Management -Data Transformation and Presentation 1B) Information and communications technology (ICT) refers to all the technology used to handle telecommunications, broadcast media, intelligent building management systems, audiovisual processing and transmission systems, and network-based control and monitoring functions. 1)super computer 2)mainframe computer 3)mini computer 4)micro computer super computer : They are most powerful ans expensive computers. they have externally large storage capacities and processing speed is at least 10 times faster than other computers.some of the super computers are NEC , CRAY ,CYBER 205,CDC STAR 100 etc. mainframe computer: they are midium or large machine ,made of several units connected together . it’s generally used in big organizations. mini computer: they are like small mainframes. they consist of a few seperate units connected together . they are not powerful as mainframe computers. micro computer: they are the smallest general purpose computers. they are about the same size an of a typewriter machine . they are used in diffrent applications like business, engeneering , schools, colleges , entertainment etc. 1c. – — ICT has also change the way we shop ICT has changed the way we shop lots of people shop online now for a number of things like: cloths, games, food and music witch is easier for us most of the time —– ICT technology has changed the way we judge sports how we watch them and also in some case’s how we competed in them. the use of game consoles have a lot to do with sport is well Lewis Hamilton said that he managed to learn the racing tracks because he had played them on his PlayStation —— Some ICT technology has taken over lots jobs because for example one special built robot can do the work that 60 people would do in a quicker time and also up to a better standard and this is happening because now it is cheaper for the business or companies to do this because then they don’t have to pay the works or pay to keep the room or area they work in heated they also don’t have to pay for sick pay and the robots will work longer they would be faster and the work would be better quality then humans. 2a. Computer ethics is a part of practical philosophy which concern with how computing professionals should make decisions regarding professional and social conduct. 2b. Pick 3 -Asset Management -management asset -Location Management. – infrastructure assets. -Real-Time Monitoring. 2b. Below are suggestion of rules and regulations for computer lab users. 1. Pupils are prohibited to enter the lab unless authorised by the teacher. 2. Scan diskettes before using them. 3. Report all problems related to the system to the teacher. 4. Do not attempt to repair or tamper with lab equipment. 5. Be responsible when using equipment, software and facilities in the lab. 6. Do not move any equipment from its original position. 7. Do not remove or load any software into the computer. 8. Do not change the settings in the computer. 9. Save all work in external storage device and not in the computer. 10. Do not bring in bags, food and drink into the lab. 11. Turn off the computer accordingly after use. 12. Switch off all power supplies before leaving the lab. 13. Internet facility is strictly for educational purposes only. 14. Teachers should record the use of computer lab in the lab log book. 15. All users should record the use of computers in the computer log book. 16. The Lab should be kept clean and tidy at all times. ====================== 6ai] Monitor 6aii] iMonitor ii. printers 6aiii] III. – CPU VI- SOCKET AC SOURCE VII- PRINTER. 6iv] Ensure you use stabilizer when using the computer so that the power source will not be fluctuating. 6v] true the Keybord/CPU 6vi] fan. (3a) Web programming (3b) Web programmer (3c) -VB.NET -MYSQL (3di) Intranet (3dii) -It is a cheap medium of communication -It does not allow for leakage of secret information by hackers -It is easy to maintain. It requires less technical knowledge. (e) -Router -Modem

I Ctrl + C
II Ctrl + S
III Ctrl + P
-Word processing packages
-Corel draw packages
-Excell processing packages5biii)
-Word pad
-Quick office
-Lotus word pro-windows
S/N: i,ii,iii,iv
Keystroke: Ctrl + return,Ctrl + F,Ctrl +F2
Action: Page break,Find and replace,help,print

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