DATA PROCESSING:
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11-20: BBBAAADEAB
21-30: EDCDADBAEA
31-40: ABCBDADBDB
41-50: DBBEEBDCBA
51-60: AADBCACCDB
Data processing.
3ai)relational database is a digital database whose organization is based on the relational model of data, as proposed by E. F. Codd in 1970.
ii)
-Tables
-forms
-queries
3iii)
A program file refers to sets of instructions that are put together to build up the application you will be using. Several files are linked between each other to see the application that pops in your screen.
A data file is basically the application's feeding as it provides what is needed for your program to work and convert single pieces of data on understandable information.
(iii)Ms excel & LOtus(ci)To save document in Ms word– click on the office button– select save from the displayed options.
– select the drive or directory to store thedocument by clicking on the arrow on the save incombo box– click on the file name, type the desireddocument name-click on save button(ii)(a) CTRL X = this cuts (removes) a selected/highlighted copy and paste it on the clipboard(b) CTRL V = this inserts the copy on theclipboard into the area where your flashing cursoris positioned or the area you have selected(iii)Ms excel & LOtus(ci)To save document in Ms word– click on the office button– select save from the displayed options.
– select the drive or directory to store thedocument by clicking on the arrow on the save incombo box– click on the file name, type the desireddocument name-click on save button(ii)(a) CTRL X = this cuts (removes) a selected/highlighted copy and paste it on the clipboard(b) CTRL V = this inserts the copy on theclipboard into the area where your flashing cursoris positioned or the area you have selected
3bi)
Two way, real-time transmission of audio and video signals between specialized devices or computers at two or more locations via satellite (wireless) over a network such as a LAN or
internet.
ii) 1. No time constraint:
2. Dramatic travel saving:
3. Easy communication:
4. Increased productivity:
3biii)
As a term, teleconferencing alludes to the act of conducting a conference with several individuals who are in different locations as opposed to just one place at the same time. Telephones, computers, televisions (video), internet and radio are some of the tools that are utilized to successfully carry out a teleconference. Videoconferencing, while referring to the aforementioned way of conferencing restricts itself to the utilization of video, implying the ability to see and hear all the participants in the conference.
Data Processing
(5)
-Systematic gathering
-Recording
-Analyzing of data
-Collection of data
-Decision making
-Systematic gathering: Is d collection of data frm various sources to gather common knowledge of the people/customers
-Recording: Is the documentation of the data and
-Analyzing of data is when the idea,knowledge dat are collected frm random people are worked on by the research agents
-Collection of data: Is when the research agent use various methods to bring various ideas together from several customers
-Decision making: Is when the data are collected and analysed & are considered for usage
2a
Computer virus:
A computer virus is a malware program that, when executed, replicates by inserting copies of itself (possibly modified) into other computer programs, data files, or the boot sector of the hard drive; when this replication succeeds, the affected areas are then said to be "infected". However, not all viruses carry a destructive payload or attempt to hide themselves—the defining characteristic of viruses is that they are self-replicating computer programs which install themselves without user consent.
Virus writers use social engineering and exploit detailed knowledge of security vulnerabilities to gain access to their hosts' computing resources. The vast majority of viruses target systems running Microsoft Windows, employing a variety of mechanisms to infect new hosts, and often using complex anti-detection/stealth strategies to evade antivirus software.
Viruses often perform some type of harmful activity on infected hosts, such as stealing hard disk space or CPU time, accessing private information, corrupting data, displaying political or humorous messages on the user's screen, spamming their contacts, logging their keystrokes, or even rendering the computer useless.
DATA PROCESSING
9a)- He decides the demand of the product at that time
- He helps to make arrangement for storage facilities
- He helps to fix the price for the price for the agricultural product
He helps to look at the quality and quantity of agricultural product to be marketed-
He helps to grade the agricultural product
(9b)- Facilitator helps to decide where there is the demand for the processed food-
He also helps in fixing the good price for the product
- He decides on how to store the product in the case of excess-
He will decide the quality of the product-
He helps in grading of the product
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