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[3/27, 10:37 AM] Waec & Jamb: 3b
(i) A pop-
up is a graphical user (GUI) display
area. The pop-up window
containing an advertisement is usually
scripting (XSS), sometimes with a secondary
payload that uses Adobe Flash. They can
also be generated by other vulnerabilities/
security holes in browser security.
(ii) Pop-up ads or pop-ups are forms of online
advertising on the World Wide Web.
(iii) Open Internet Explorer. Click the
tools button (it is in the top
righthand corner and looks like a
cog), then select internet options.
Go to the Privacy tab, and under
Pop-up Blocker, select the Turn
on Pop -up Blocker check box, and
then tap or click ok.
[3/27, 10:37 AM] Waec & Jamb: 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
(9 b) – 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
(i ) Devices with high Processor is faster in accessing of data
(ii ) When the memory size of the device is high , it quicks data access .
(iii ) When the Content of the device is high, it slows down access of data
(iv ) Virus- free device can access data quicly
(i ) Instant messaging is a type of communications service that enables you to create a kind of private chat room with another individual in order to communicate in real time over the Internet, analagous to a telephone conversation but using text – based , not voice – based , communication .
(ii ) E – commerce (electronic commerce or EC) is the buying and selling of goods and services , or the transmitting of funds or data , over an electronic network , primarily the internet .
(iii ) Homepage: This is the main page of a website which gives detailed information on its owner and provides links to its other parts . Usually it is the first page seen by every visitor, but some sites ( such as those of newspapers or portals ) display a fresh page everyday, custom – tailored to the individual visitor’ s preferences.
(iv ) ISP : ISP simply means Internet Service Provider. It is a company that provides you with access to the Internet, usually for a fee. The most common ways to connect to an ISP are by using a phone line (dial- up ) or broadband connection ( cable or DSL ) .
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DATA PROCESSING 2 (ESSAY) 9.30AM – 11.30AM
DATA PROCESSING 1 (OBJ) 11.30AM – 12.30PM
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Data Processing OBJ:
(1a) Data handling is the way of collecting facts and can be treated in order to achieve a positive goal.it is the process by which information collected for a given purpose such as research or planning needs to be stored, used and done away with after it is no longer needed.
Data handling ensures the integrity of research data as it addresses concerns relating to confidentiality,security and preservation/retention of research data.for data integrity is of primary concern to ensure that records are not altered,erased,lost or accessed by unauthorised users.
(i) Electronic Data handling: this is the process of using computers and other electronic device.
(ii) Non Electronic data handling: this is d process of using paper, files, journal and other non-electronic device.
(i) The handling and storage of data are electrically handled
(ii) Managing access right
(iii) Regularly updating Virus protection programs
(iv) Using usernames and password to protect files
Information processing is the processing of information in any manner detectable by an observer. it is a process that describes everything that changes in the universe, from the falling of a rock to the printing of a text file from a digital computer system.
(i) Collection of Data
(ii) Preparation of Data
(iii) Input of Data
(iv) Processing of Data
(i) Tasks can be completed faster because computers work at amazing speed.
(ii) Computers can process large amounts of data and generate error-free results, provided that the data is entered correctly.
(iii) Computers can store enormous amounts of data for future use.
(i) Some jobs may be lost due to computerization and thus lower the morale of staff members.
(ii) Some staff has to be trained or retrained.
(iii) Extra cost is required to employ specialized staff to operate and design the data processing system.
– Be adaptable
-Be detail – oriented
– Work collaboratively
– Communicate well
i Nigeria is a computer society.(NCS)
ii Nigeria Internet Group(NIG)
iii Computer Professionals Registration Council of Nigeria (CPCN).
iv Nigeria Internet Exchange (NIA)
WiFi – Wireless Fidelity
GUI – Graphical User Interface
(i) Creating a folder on the desktop:
Step 1: Right click on mouse
Step2: Click on ‘New’ in the list of option
(ii) Giving name to the folder:
Step 1: Right click on the folder
Step 2: Click on rename option
Step 3: Type a new name
(iii) Sending a file from my document:
Step1: Open ‘my document’
Step2: Right click on the file and click copy
Step3: Open the new folder and paste
(iv) Changing the name of the folder in (6aii) to RESULTS
Step 1: Right click on the folder
Step 2: Click on rename option
Step 3: Type the new name RESULTS
(i)date of birth=Date and Time
1a)i) Data model is the process of structuring and organizing data. In addition, data model can also be defined as a description of the organization of data in a database
1aii)1. flat file mode
2: network model
3. Hierarchical model
1bi) i. Conceptual data Model
ii. Logical Data Model
iii. Physical Data Model
1bii) CONCEPTUAL DATA MODEL; This describes what the system contains. It provides concept that are close to the way many users perceive data ( It is also called entity – based or object- based data model
data model is the process of structuring and organizing data in addition data model can also be defined as a description of the organisation of data in data base
i)flat file mode
iii)hierarchical database model
i)conceptual data model
ii)logical data model
iii)physical data model
conceptual model is also known as the data model that can be used to describe the conceptual schema when a database system is implemented. It hides the internal details of physical storage and targets on describing entities, datatype, relationships and constraints.
(a) ♡ Ctrl+P
♡ select “pages”
♡ type ” 1, 2, 3, 4, 5″ in the pages field
♡ select the desired printer
♡ click ok
1a) digitization is the representation of an object, image, sound, document or a signal (usually an analog signal) by a discrete set of its points or samples.b)
1) They were fast and more reliable.
2) High level language was developed.
An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system.
Disk Operating System
2a)data is information that has been translated into a form that is more convenient to move or process.
DO OBJ YOURSELF
word processing is the use of computer software to create edit, view, store, retrieve and print text documents
– ability to display graphic
– ability to mail merge document
MS – office 2007
spreadsheet: is an electronic document in which data is arranged in the rows and columns of a grid and can be manipulated selected
Ms excel & LOtus
To save document in Ms word
– click on the office button
– select save from the displayed options
– select the drive or directory to store the document by clicking on the arrow on the save in combo box
– click on the file name, type the desired document name
-click on save button
(a) CTRL + X = this cuts (removes) a selected/highlighted copy and paste it on the clipboard
(b) CTRL + V = this inserts the copy on the clipboard into the area where your flashing cursor is positioned or the area you have selected
– Microsoft word
– web browser
Two hardware :
– Computer system
– He must have internet access
– He must have correct recipient email address
– Not connected to the internet
– Slow network
– The size of the attachment maybe too big
– Web browser
– Mozilla Firefox
– Internet Explorer
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