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COMPUTER & GSM OBJ:
1-10: CAEEDBADED
11-20: AEDEBAAAED
21-30: CCEEDAAEEB
31-40: CCEBCCADCA
41-50: ADDCCEAABA
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
(1ai)
A medium in telecommunication is the channel, path, or means through which information, voice, data, or signals are transmitted from the sender to the receiver.
(1aii)
(PICK ANY TWO)
(i) Twisted pair cable.
(ii) Coaxial cable.
(iii) Fibre optic cable.
(iv) Radio waves.
(v) Microwave.
(vi) Satellite communication.
(1b)
(i) NCC (Nigerian Communications Commission): Regulates and supervises the telecommunications industry in Nigeria.
(ii) NITEL (Nigerian Telecommunications Limited): Provides telecommunication services such as telephone and data communication.
(iii) NBC (National Broadcasting Commission): Regulates and licenses radio and television broadcasting stations in Nigeria.
(iv) NITDA (National Information Technology Development Agency): Promotes and regulates the development and use of Information Technology (IT) in Nigeria.
(v) NIPOST (Nigerian Postal Service): Provides postal and mail delivery services across Nigeria.
(1c)
A BTS is a radio communication equipment in a GSM network that transmits and receives voice and data signals between mobile phones and the Base Station Controller (BSC). It contains antennas and radio transmitters/receivers and provides network coverage within a specific geographical area called a cell.
(1d)
(i) Weather Satellite: Used for weather forecasting, monitoring cloud movements, rainfall, storms, and other atmospheric conditions.
(ii) Communication Satellite: Used for transmitting television, radio, telephone, internet, and other communication signals over long distances.
(iii) Navigation Satellite: Used for determining accurate location, navigation, mapping, and positioning through systems such as GPS.
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
(2ai)
Current: Current is the rate of flow of electric charge through a conductor. It is measured in amperes (A).
WHILE
Voltage: Voltage is the electrical potential difference between two points in a circuit. It is measured in volts (V).
WHILE
Resistance: Resistance is the opposition offered by a material or conductor to the flow of electric current. It is measured in ohms (Ω).
(2aii)
Yellow = 4
Violet = 7
Orange = ×1,000
Gold = ±5% tolerance
Resistance = 47 × 1,000 = 47,000 Ω = 47 kΩ ±5%
(2bi)
(i) Resistor
(ii) Capacitor
(iii) Diode
(iv) NPN Transistor
(2bii)
(i) Resistor: It is used to limit or control the flow of electric current in a circuit.
(ii) Capacitor: It is used to store electrical charge or for filtering in electronic circuits.
(iii) Diode: It is used to allow current to flow in one direction only (rectification).
(iv) Transistor: It is used as an amplifier or an electronic switch in circuits.
(2ci)
An amplifier is an electronic device or circuit that increases the strength (amplitude) of a weak electrical signal without changing its original form
(2cii)
(i) Public Address (PA) systems.
(ii) Radio and television receivers.
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
(3a)
A computer is an electronic device that accepts data as input, processes it according to a set of instructions, stores it, and produces meaningful information as output.
(3bi)
Software is a collection of programs, instructions, and related data that directs a computer on how to perform specific tasks.
(3bii)
(PICK ANY TWO)
(i) Operating system software.
(ii) Utility software.
(iii) Application software.
(iv) Programming software.
(v) Language translators (Compiler, Interpreter, Assembler).
(vi) Device driver software.
(3c)
(i) Monitor.
(ii) System unit.
(iii) Keyboard.
(iv) Mouse.
(v) Printer.
(vi) Scanner.
(vii) Speakers.
(viii) Microphone.
(ix) Hard disk drive (HDD)
(x) Uninterruptible Power Supply (UPS).
(3d)
(PICK ANY FOUR)
(i) E-mail communication.
(ii) Web browsing and information retrieval.
(iii) Online education (e-learning).
(iv) Electronic commerce (e-commerce).
(v) Social networking and instant messaging.
(vi) Video conferencing and online meetings.
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
(5ai)
A user interface (UI) is the means through which a user interacts and communicates with a computer, mobile phone, or any electronic device to perform tasks.
(5aii)
(i) Graphical User Interface (GUI).
(ii) Command Line Interface (CLI).
(iii) Menu-Driven Interface.
(5bi)
Mobile phone accessories are additional devices or equipment used with a mobile phone to improve its functionality, protection, convenience, or performance.
(5bii)
(PICK ANY TWO)
(i) Charger: Used to recharge the phone battery.
(ii) Earphones/Headset: Used for listening to audio and making hands-free calls.
(iii) Power Bank: Used to charge the phone when there is no electricity.
(iv) Phone Case/Cover: Protects the phone from scratches and damage.
(v) Memory Card (MicroSD): Used to increase the phone’s storage capacity.
(vi) USB Data Cable: Used for charging the phone and transferring data between devices.
(5c)
(PICK ANY FIVE)
(i) Wi-Fi.
(ii) Bluetooth.
(iii) Display.
(iv) Sound.
(v) Security.
(vi) Date and Time.
(5d)
=Mobile Phone Hardware=
(PICK ANY TWO)
(i) Screen (Display).
(ii) Battery.
(iii) Camera.
(iv) Speaker.
(v) Microphone.
(vi) SIM card slot.
=Mobile Phone Software=
(PICK ANY TWO)
(i) Android Operating System.
(ii) WhatsApp.
(iii) Google Chrome.
(iv) Gmail.
(v) Facebook.
(vi) YouTube.
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
(6ai)
A multimeter is an electrical measuring instrument used to measure voltage, current, resistance, and to test the continuity of electrical circuits.
(6aii)
(i) Select the correct function (voltage, current, or resistance).
(ii) Set the appropriate measurement range.
(iii) Insert the test leads into the correct terminals and ensure the meter is properly zeroed (for analogue multimeters).
(6b)
Check the diagram below
(6c)
(i) Pouch: Protects the mobile phone from scratches, dust, and minor impacts.
(ii) Screen Guard: Protects the phone screen from scratches, cracks, and fingerprints.
(iii) Gloves: Protect the hands from injury, heat, chemicals, and electric shock during repair work.
(iv) Goggle: Protects the eyes from dust, flying particles, and harmful substances.
(v) Helmet: Protects the head from injury caused by falling objects or accidental impact.
(6d)
(i) Dirty Battery Contact: Causes poor electrical contact, leading to charging problems or the phone failing to power on.
(ii) Charger Not Well Plugged: Results in slow charging, intermittent charging, or no charging at all.
(iii) SIM Card Incorrectly Inserted: The phone may fail to detect the SIM card, preventing calls, SMS, and network access.
(iv) One of the Keys on the Keypad Stuck: The affected key may not function properly or may continuously send unwanted inputs.
(v) Using a Dead Battery: The mobile phone will not power on or operate until the battery is charged or replaced.
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers
Neco 2026 Computer Hardware & Gsm Repairs Questions and Answers