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WorksheetsICT 9 Revision 1
Total questions: 120
Worksheet time: 1hrs 24mins
What defines computer hardware?
Programs that control computer operations.
Physical components that make up the computer system.
Data and instructions processed by the CPU.
External storage solutions for backup.
What is the primary function of the Central Processing Unit (CPU)?
To connect all main components of the computer.
To store information like software and files.
To carry out calculations and complete software instructions.
To display graphics on the monitor.
What is the main purpose of a motherboard in a computer system?
To provide temporary storage for data.
To connect all the main components of the computer system.
To store the operating system permanently.
To process and deliver sound.
What type of memory holds temporary instructions that are being processed by the CPU?
Read Only Memory (ROM)
Hard Disk Drive
Random Access Memory (RAM)
Optical Disk Drive
Which of the following is considered an input hardware device?
Monitor
Speakers
Keyboard
Printer
What is the primary function of software in a computer system?
To provide physical components for the computer.
To control the operation of a computer or process electronic data.
To store data permanently on a CD-ROM.
To connect the computer to the internet.
What two essential components must a computer system have to be useful?
A monitor and a keyboard.
An operating system and an antivirus program.
Both hardware and software.
A word processor and a spreadsheet.
What is the main purpose of application software?
To manage the computer's internal hardware.
To provide services that allow users to complete specific tasks.
To protect the computer from viruses and malware.
To provide a user interface for the operating system.
Which type of software is primarily responsible for the overall operation and running of a computer system?
Application software.
Utility software.
System software.
Word processing software.
Why does an Analogue-to-Digital Converter (ADC) play a crucial role in processing real-world measurements for computers?
Because sensors only produce digital signals.
Because computers can only understand analogue signals.
Because real-world measurements are analogue, and computers only understand digital signals.
Because it enhances the visual quality of the data.
What is a key characteristic of analog data?
It consists of discontinuous values.
It is converted into a binary waveform.
It represents a continuous range of values.
It is primarily used in digital electronics.
What is the primary function of measuring and control software in an environment like a greenhouse?
To display data on a screen for manual adjustments.
To change physical conditions based on sensor readings.
To store large amounts of environmental data.
To directly power the devices without sensors.
Why can't a computer directly read data from a sensor without an additional device?
Sensors produce digital data, but computers require analog.
Computers can only read analog data, while sensors produce digital.
Sensor data is in analog form, and computers require digital data.
The data from sensors is too large for direct computer processing.
What is the main difference between a measurement system and a control system?
Measurement systems only store data, while control systems only display it.
Measurement systems detect changes, while control systems actively change the environment.
Control systems are always manual, while measurement systems are automated.
Measurement systems use actuators, while control systems use sensors.
Which of the following is an advantage of using a computer system with sensors for scientific experiments instead of manual readings?
It requires less initial setup time.
It can only take readings during school hours.
It provides more accurate and consistent readings over time.
It is less expensive than manual data collection.
What type of core processors do modern computers typically have to process instructions simultaneously and independently?
Single-core
Dual or Quad-core
Octa-core
Multi-thread
What is the correct sequence of steps for the CPU to process a set of instructions?
Decode, Fetch, Execute
Execute, Decode, Fetch
Fetch, Decode, Execute
Fetch, Execute, Decode
Where is primary storage, also known as main memory, typically located in a computer system?
On the hard drive
On the motherboard
In the power supply unit
Within the CPU itself
What characteristic describes RAM, meaning that all data stored in it is lost when the computer is turned off?
Non-volatile
Permanent
Volatile
Static
What actions can be performed on data stored in Random Access Memory (RAM)?
Only read
Only written to
Read and written to
Neither read nor written to
What is the primary purpose of Read Only Memory (ROM) in a computer?
Temporarily storing user files
Holding "boot up" instructions to start the computer
Providing additional storage for applications
Allowing users to change system settings
Unlike RAM, what characteristic describes ROM, meaning its memory is not lost when the computer is turned off?
Volatile
Non-volatile
Dynamic
Temporary
Which characteristic describes RAM?
Non-volatile
Stores boot-up instructions
Data is lost when power is off
Read-only memory
What is a key characteristic of ROM?
Stores current running programs
Data is lost when power is off
Can be read from and written to
Stores startup instructions
What is the general name for extra devices connected to a computer to allow data to be inputted and outputted?
Internal components
Peripheral devices
Main memory
Processing units
What is the primary function of an input device?
To store data for a long time
To take data from the computer
To pass data into the computer
To process data
Which statement best describes an output device?
It stores data permanently
It passes data into the computer
It takes data from the computer
It processes instructions
What is a characteristic of backing storage?
It is volatile memory
Data is lost when the computer is turned off
It is used to store data for a long time
It only stores temporary data
What is the primary role of the Central Processing Unit (CPU) in a computer?
To store data permanently
To display visual output
To fetch, decode, and execute instructions
To connect peripheral devices
What is the primary function of an operating system?
To run only one application at a time.
To manage the basic functions of a computer system.
To provide hardware components for a computer.
To create and edit documents.
Which of the following is an example of an operating system?
Microsoft Word
Google Chrome
Linux
Adobe Photoshop
What does the "Multi Tasking" feature of an operating system allow?
It allows only one application to run at a time.
It allows many applications to run simultaneously.
It allows the computer to connect to the internet.
It allows users to create new hardware.
Which of the following is NOT a typical feature of an operating system?
Memory Management
Real-time processing
Hardware manufacturing
Error Handling
What is a Graphical User Interface (GUI) primarily built around?
Text commands
Numerical codes
Graphics
Audio inputs
Which of the following is a component of the WIMP features in a GUI?
Printers
Scanners
Icons
Keyboards
Why are Graphical User Interfaces (GUIs) considered easy to use?
They require complex command prompts.
They are built around visual clues.
They only support a single application at a time.
They are designed for expert users only.
What is the primary way users interact with a Command Line Interface (CLI)?
By clicking on icons
By using a pointing device
By entering command prompts
By selecting options from menus
Why are Command Line Interfaces (CLI) typically used by expert users?
They offer many visual aids.
They are simpler to navigate than other interfaces.
They require precise command entry and are more complicated.
They restrict users to a limited number of options.
What does the acronym GUI stand for in computing?
General User Interface
Graphical User Interaction
Global User Interface
Graphical User Interface
What is a primary advantage of a Graphical User Interface (GUI)?
It requires users to learn complex commands.
It is generally easier to use due to its visual nature.
It consumes less memory than a Command Line Interface.
It does not require a pointing device for interaction.
What is an advantage of using a Command Line Interface (CLI)?
It is easier for new users to learn.
It offers more freedom to use specific commands.
It provides a graphical display of files and directories.
It does not require an operating system to function.
Which of the following is a disadvantage of using a Command Line Interface (CLI)?
It allows for greater freedom in computer interaction.
It provides many visual aids for user guidance.
Commands must be typed without errors.
It takes up less memory compared to other interfaces.
How does a Command Line Interface (CLI) differ from a Graphical User Interface (GUI) in terms of available options?
CLI offers only predetermined options, while GUI offers more freedom.
CLI is restricted to a few options, while GUI has unlimited options.
CLI is not restricted to predetermined options, unlike GUI.
Both CLI and GUI offer the same range of predetermined options.
Which of the following is a characteristic of a desktop computer?
All components are integrated into a single device.
It is primarily designed for mobile use.
It typically has separate components like a monitor, keyboard, and mouse.
It relies solely on battery power for operation.
What is a key advantage of a desktop computer over a laptop computer regarding hardware?
It is more portable.
It has a longer battery life.
Its components are easier to upgrade.
It has built-in wireless connectivity only.
What is the primary advantage of a laptop computer?
It is always connected to a power source.
It is highly portable.
It has separate components for easy replacement.
It is less prone to being stolen.
Which feature is commonly found in tablet computers?
A physical keyboard as the primary input.
Dependence on wired network connections.
Touch screen technology for interaction.
Limited ability to download applications.
How do smartphones typically connect to networks for internet access and communication?
Exclusively through wired Ethernet cables.
Only via Bluetooth connections.
Through wireless and mobile communication technologies like 3G/4G/5G.
By connecting to a separate monitor and keyboard.
What best describes a phablet?
A smartphone with a screen size smaller than a typical smartphone.
A tablet that lacks phone functionality.
A smartphone with a screen size larger than a typical smartphone but smaller than a tablet.
A desktop computer designed for portability.
What is a common disadvantage of desktop computers?
They have limited battery life.
They are difficult to repair and upgrade.
They are not portable and take up more desk space.
They have small screens that are difficult to read.
What is an advantage of a laptop computer?
It has unlimited battery life.
It is easy to repair and upgrade.
All its components are connected together.
It is less likely to be stolen or lost.
Which of the following is a common disadvantage of using a laptop?
It cannot connect wirelessly to the internet.
Its battery cannot be recharged.
Users may find the pointing device difficult to use.
It is too heavy to be portable.
What is an advantage of a tablet computer compared to a mobile phone?
It has limited memory.
Typing is easier on its screen.
Its battery life is longer.
All files are compatible with it.
Which of the following is a disadvantage of a tablet computer?
It has unlimited memory.
It is inexpensive to use 3G/4G internet.
Typing is easier compared to a normal keyboard.
Not all files are compatible with it.
What is a key advantage of a smartphone?
It has a large screen for easy reading.
It is small in size and easy to carry around.
It has a very long battery life.
It offers unlimited storage capacity.
Which of the following is a disadvantage of a smartphone?
It has a large screen size.
It has unlimited storage capacity.
It has limited storage/memory.
It has fast data transfer rates.
What is a disadvantage of a phablet compared to a smartphone?
It has a smaller screen size.
It cannot be used for phone calls.
It is not as portable.
It has a slower data transfer rate.
Complete words for BIOS
(a)
Complete words for CLI
(a)
Complete words for GUI
(a)
What is hardware?
Software components
Physical components of a computer system
Internet components
Network components
Which component is known as the "brain" of the computer?
Motherboard
CPU
RAM
Hard Disk
What type of memory is permanent and contains the programming that helps a computer 'boot up'?
RAM
ROM
CPU
Graphics Card
Which device attaches to the motherboard to enable the computer to process and display graphics?
Network Card
Sound Card
Graphics Card
Hard Disk
The motherboard is a circuit board that connects to the main components of the computer system.
True
False
A network card provides the computer with a network connection either through wireless signals or a physical cable connection.
True
False
What does IPO cycle mean?
(a)
The power supply connects to all the main components of the computer system, including the motherboard and hard drive.
True
False
Match the component with its description:
The brain of the computer, carries out calculations to complete software instructions.
Circuit board that connects to the main components of the computer system.
Form of temporary storage, where programs and data currently being used are stored.
Hardware device used to store information like software and files.
Which user interface is more user-friendly?
GUI
CLI
CPU means (a)
The main components of CPU include__________
Arithmetic and Logic Unit
Memory unit
Control Unit
RAM
Which type of computer is more portable?
desktop computer
laptop computer
mainframe
supercomputer
Device driver is a software
True
False
Linker is a hardware
True
False
Define Hardware
Define Software
This is a fast permanent memory used for holding instructions needed to start the computer up.
RAM
OS
IOS
ROM
A printed circuit board that allocates power to the CPU and connects other controller cards is called (a) .
What is the interface where options are chosen from a menu and represented by icons?
(a)
Instructions have to be typed in to access this interface
(a)
Most modem laptop computers have a webs cam built in.
True
False
Desktop computer are not very portable .
True
False
All desktop computer have touchpad built in.
True
False
Tablet computers have touch screens?
True
False
Smartphones will only connect to the internet through WiFi?
True
False
ROM is Real Optical Memory
True
False
ROM stores the BIOS
True
False
Word processing
application
systems
Spreadsheets
applications
systems
Give the type of interface shown above.
A company is setting up a video-conference. Name three computer hardware devices they will need.
Microphone
Printer
Speakers
Web camera
Smartphone
A portable computer that includes a physical keyboard.
What is meant by this "Replicates an environment or real-life scenario. It can be explored and interacted with by a person"
Meaning of CAD
(a)
Meaning of OS
(a)
Meaning of VR
(a)
Meaning of AI
(a)
Organize these options into the right categories
Data on chip cannot be deleted.
Change is not possible.
Data will stay even without power.
A volatile memory.
Stores data currently used by the computer.
Data is lost when system is off.
Contains BIOS boot program for a computer system.
Can upgrade and add more.
What type of interface would only suit an expert user?
Menu Driven
GUI - Graphical User Interface
WIMP - Windows Icon Menu Pointer
Command Driven
Choose the disadvantage
Choose the disadvantage
User interface that suitable for use in cars or home automation to control equipment such as lights and entertainment systems.
Graphical user interface
Dialogue interface
CLI
Gesture-based
Which of the following best describes a smartphone?
A computer with vast amount of processing power
A mobile device with the capability of making calls and using apps online
A computer that predicts the weather forecast
A wearable computer
What is the main hardware component is used to input data on a smartphone?
CPU
Touch screen
GPU
RAM
Which security feature of a smartphone allows users to unlock their device using their face?
Biometric Security
Pin
Swipe up
Pattern lock
........................... is hvbrid between tablet and smartphone
Fablet
Phablet
Cablet
............................. are equipped with a series of sensors including cameras, microphones, accelerometers and touch screens.
Smart watch
Tablet
Laptop
