Waec Digital Technologies 2026 Question and Answers

Waec Digital Technologies 2026 Question and Answers

Thursday, 14th May 2026
Digital Technologies 2 (Essay) 2:00pm – 3:00pm
Digital Technologies 1 (Objectives) 3:00pm – 4:00pm

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Waec Digital Technologies 2026 Question and Answers

DIGITAL TECHNOLOGY
01-10: CBABADCDAA
11-20: CDDBDABCDC
21-30: ADDBADABAA
31-40: CBBBDCDDBA
41-50: CCDBAACBDA

 

1(a)

(i) Logic operation between A and B:
NAND operation

(ii) Logic operation between C and D:
OR operation

(iii) Logic equation for Z:
Z = (A.B)’ + (C + D)

1(b)

The logic device used to invert the output is:
NOT gate (Inverter)

1(c)
– Row 1: A=1, B=0, C=1, D=1
A·B = 0, Ā·B̄ = 1, C+D = 1, Z = 1

– Row 2: A=1, B=1, C=1, D=0
A·B = 1, Ā·B̄ = 0, C+D = 1, Z = 0

– Row 3: A=1, B=0, C=0, D=1
A·B = 0, Ā·B̄ = 1, C+D = 1, Z = 1

– Row 4: A=1, B=1, C=0, D=0
A·B = 1, Ā·B̄ = 0, C+D = 0, Z = 0

– Row 5: A=1, B=0, C=1, D=1
A·B = 0, Ā·B̄ = 1, C+D = 1, Z = 1

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2(a) The internet is a global network of interconnected computers and devices that communicate using standardised protocols to share information and resources worldwide.

2(b)
(i) Intranet is private and accessible only to members of a specific organisation — Extranet extends access to selected outside users such as partners or suppliers.
(ii) Intranet is confined within one organisation — Extranet connects two or more organisations.

2(c)
(i) HTTP — HyperText Transfer Protocol
(ii) IP — Internet Protocol
(iii) LAN — Local Area Network
(iv) TCP — Transmission Control Protocol

(2d)
(i) HTTP
(ii) FTP

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(3a)
A register is a small high-speed storage location inside the CPU used for holding data, instructions, or addresses temporarily during processing.

(3bi)
Program Counter (PC)

(3bii)
Accumulator

(3c)
A special purpose register performs a specific dedicated function, WHILE a general purpose register is used for general data processing and temporary storage.

(3d)
Check the image below

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4(a) Flowchart Symbols

(i) Rectangle → Process symbol

(ii) Parallelogram → Input/Output symbol

(iii) Diamond → Decision symbol

(iv) Arrow lines → Flow line / Direction of flow

(v) Oval → Terminal / Start-End symbol

4(b) Uses of the Symbols
(i) Process symbol → Used to show a processing step or instruction.

(ii) Input/Output symbol → Used to show data input or output operations.

(iii) Decision symbol → Used to show decision making or branching.

(iv) Flow line → Used to show the direction/sequence of steps.

(v) Terminal symbol → Used to indicate the beginning or end of a flowchart.

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NUMBER 5
(5a)
An integrated software package is a collection of related application programs bundled together as a single unit. These programs (such as a word processor, spreadsheet, and database) share a common user interface and allow for the easy transfer of data between them.

(5b)
(i)EXT (Extend Selection Mode): When this mode is active, you can use the arrow keys to extend the current selection of cells. Instead of moving the cursor to a new cell, the program “stretches” the highlighted area from the original cell to the new one.
(ii)OVR (Overtype Mode): In this mode, any new character you type replaces (overwrites) the existing character at the cursor position. This is the opposite of the standard Insert mode, where new text is pushed in between existing characters.

(5c)
(i)Insert Mode: The default mode where new text is inserted at the cursor, pushing existing text to the right.
(ii)Overtype (or Overwrite) Mode: A mode where new text replaces the existing text character-by-character as you type.

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