WAEC EXPO 2018; 2018 WAEC DATA PROCESSING EXPO ANSWER RUNS (Essay & Obj) Free May/June

WAEC EXPO 2018; 2018 WAEC DATA PROCESSING EXPO ANSWER RUNS (Essay & Obj) Free May/June

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)

(i)

1) They were fast and more reliable.

2) High level language was developed.

(ii)

– Joystick

– Keyboard

(c)

(i)

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.

(ii)

Disk Operating System

Windows.

2a)data is information that has been translated into a form that is more convenient to move or process.

DO OBJ YOURSELF

3.

(ai)

word processing is the use of computer software to create edit, view, store, retrieve and print text documents

(ii)

– ability to display graphic

– ability to mail merge document

(bi)

Ms-office 2003

MS – office 2007

(ii)

spreadsheet: is an electronic document in which data is arranged in the rows and columns of a grid and can be manipulated and used in calculations

(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 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

(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 the clipboard into the area where your flashing cursor is positioned or the area you have selected

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