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WorksheetsBTEC Information Technology: Unit 1 Learning Aim A
Total questions: 46
Worksheet time: 46mins
Digital Device:
A digital device uses which type of data?
Digital
Analogue
Neither
Digital Devices:
Multi-functional devices such as touch screens allow...
Input of data by pressing the screen
Output of images onto the screen
Both Input and Output on the device
Digital Devices:
Personal computers such as laptops and desktops have many advantages such as...
They can be small in size and portable
They can be easily dropped and broken
They can be inexpensive to buy
They need recharging often
Digital Devices:
A server is....
A slow, weak computer with small storage capacity.
A slow, powerful computer with high storage capacity.
A fast, powerful computer with small storage capacity.
A fast, powerful computer with high storage capacity.
Digital Devices:
A server is used to....
Connect computers together into a network.
Allow computers to power up.
Requires a network manager.
Allows central backups.
Digital Devices:
Digital cameras store images as a collection of ................... The more ..................... in the image, the better the quality of the photo.
Files
Mini-Parts
Pixels
Parts
Digital Devices:
Navigation Systems use a GPS reciever to locate the user's position on a digital map to provide directions to a destination. GPS stands for?
Global Placement Satellite
Global Positioning Satellite
Global People Satellite
Global Positioning Service
Digital Devices:
Data capture and collection systems collect and input data automatically rather than manual direct data entry. Examples include:
Bar-code Scanners
Paper Questionnaires
Optical Mark Readers
Interviews
EPOS Systems
Digital Devices:
EPOS stands for?
Electronic Point of Sale
Electronic Point of Service
Electronic Purchase of Stock
Electronic Purchase of Sale
Input and Output Devices:
Tick all of the Input devices shown in the list.
Keyboard
Mouse
Monitor
Scanner
Webcam
Input and Output Devices:
Tick all of the Output devices shown in the list.
Printer
Microphone
Monitor
Speakers
Webcam
Devices for accessibility:
Some users require specialist devices to support their needs. A blind person may use which input device?
Keyboard
Braille Keyboard
Touch Screen
Mouse
Devices for accessibility:
Some users require specialist devices to support their needs. A person with significantly limited mobility may use which input device?
Keyboard
Eye Motion Sensors
Touch Screen
Mouse
Data Processing:
Data can input by either automatic or manual methods, examples of Automatic processes/devices are:
Bio-metric Readers
Bar-code Readers
Keying Product Details into a Database
Smart Readers for the Gas Meter
Marking exam papers
Data Processing:
Data can input by either automatic or manual methods, examples of Manual processes/devices are:
Optical Mark Recognition Readers
Entering customers meal choices into a system
Keying Product Details into a Database
Smart Readers for the Gas Meter
Marking exam papers
Storage Devices:
These are used to store, back up and share data. When deciding which storage device to use, you should consider:
Storage Capacity
Speed of Accessing Files
The Colour of the Device
The Cost of the Device
If the Device is Portable and Durable
Storage Devices:
Hard Disk Drives are magnetic storage devices, they can be internal or external. The disadvantages of using these are:
Large Storage Capacity with a Low Cost per byte
Very Reliable especially Internal
Slower than SSD's at Loading Data
Are not as Portable as other options
Storage Devices:
Solid State Drives are flash memory devices. These are mainly used internally in laptops and tablets. The advantages of this device are:
Very fast data read/write speeds
Low Power Consumption
They have no Moving Parts so Extremely Reliable
Cost more than HDDs
Usuallt have a Lower Storage Capacity than HDDs
Storage Devices:
SD Cards are small flash memory that are commonly used to store files in....
Televisions
Radios
Digital Cameras
Storage Devices:
USB memory sticks are small flash memory devices that connect via USB ports. The Disadvantages of using these are:
Because they are small they can be lost easily
Extremely portable
Only have a number of writes before they break
Compatible with most computer systems
Storage Devices:
Optical Disks such as ...................................... are used for software, music and movies. They are portable but are fragile and easy to damage.
CD's
DVD's
USB's
Blu-Ray Disks
Storage Devices:
Which device would be used for a large data backup?
Magnetic Tape
USB
Solid State Drive
SD Card
Operating Systems:
The role of the operating system is....
coordinates all the operations of the computer for the user.
coordinates some of the operations of the computer for the user.
coordinates none of the operations of the computer for the user.
Windows XP
Operating Systems:
Which operating system enables inputs to be processed and responded to instantly?
Single-User Single Task Operating Systems
Multi-User Operating Systems
Single-User Multitasking Operating Systems
Real-time Operating Systems
Operating Systems:
Which operating system enables one user to use the system at one time with only one application running at one time?
Single-User Single Task Operating Systems
Multi-User Operating Systems
Single-User Multitasking Operating Systems
Real-time Operating Systems
Operating Systems:
Which operating system enables many users with many applications running simultaneously?
Single-User Single Task Operating Systems
Multi-User Operating Systems
Single-User Multitasking Operating Systems
Real-time Operating Systems
Operating Systems:
Which operating system enables one user to use the system at a time, but many applications at the same time?
Single-User Single Task Operating Systems
Multi-User Operating Systems
Single-User Multitasking Operating Systems
Real-time Operating Systems
Operating Systems:
Hardware factors that can impact the performance of operating systems are:
Number of Cores
Spyware
Limited CPU Speed
Limited RAM
Viruses
Operating Systems:
Malware factors that can impact the performance of operating systems are:
Number of Cores
Spyware
Limited CPU Speed
Limited RAM
Viruses
The Role of the Operating System:
The operating system is the link between the hardware and software. It passes messages back and forth and carries out instructions. Operating Systems:
Networking - simplify networking in a computer
Security - User Authentication, Backup facilities and File Access
Memory Management - Which applications to give memory to
Multitasking - Allows different applications to run at once
Device Drivers - will run a driver to allow communication to a new printer
User Interfaces:
These allow users to interact with the computer system. 3 examples of a user interface are:
Command Line
Touchscreen
Graphical User Interface
Menu-Based
User Interfaces:
Command Line - User types in commands in response to prompts on the screen. Advantages of this interface are:
Experienced users find it quicker to use
Learning all of the commands can be hard
Requires less memory to run
Requires less processing power to run
User Interfaces:
Graphical User Interface - Users interact by controlling a pointer to select icons and menus shown on the screen. Disadvantages of this interface are:
It is simple and intuitive for beginners
Experienced users can find it frustrating
It uses a lot of processing power and memory to run
Options allow you to adapt the interface to suit your needs
User Interfaces:
Menu Based - Users select from a pre-set menu of options on the screen. The Advantage of this interface is:
There may be many menu levels so it takes a long time
No instructions are needed to work out how to use it
Only a set number of options can be given at one time
The screen may not be calibrated correctly
Utility Software:
These are used to manage system resources. They are like a toolbox to maintain our computer. Disk Utilities allow:
File Compressors - reduces the size of the file
Firewalls - prevent unauthorized access
Backup - automate backups of files
Disk Defragmenter - reorganises the data for quicker access
Anti-Virus - Detect and remove viruses
Utility Software:
These are used to manage system resources. They are like a toolbox to maintain our computer. Network Utilities allow:
File Compressors - reduces the size of the file
Firewalls - prevent unauthorized access
Backup - automate backups of files
Disk Defragmenter - reorganises the data for quicker access
Anti-Virus - Detect and remove viruses
Utility Software:
What is used that allows you to display the path that data packets travel over an IP network to help diagnose problems?
Find My Files
Traceroute
Pathfinder
Packetroute
File Types:
Different file types are used to denote the structure of the data stored. Which file type could be used to store an Image?
GIF
MP4
PNG
JPG
File Types:
Different file types are used to denote the structure of the data stored. Which file type could be used to store a video file?
GIF
MP4
PNG
MOV
AVI
Application Software:
Proprietary software is...
The code is privately owned by the software company.
The source code is available to read and modify.
Application Software:
Open source software is...
The code is privately owned by the software company.
The source code is available to read and modify.
Application Software:
Open source software is good because...
Most open source software is free to use.
Support/Troubleshooting help may not be fast in responding.
You may need to pay for training.
Open source software is usually compatible with proprietary software.
Application Software:
Proprietary software is bad because...
Users may have to pay to buy or subscribe to the software.
Support is provided by the software creators.
The software is usually very generic with little customisation available.
It may have more features than open source software.
Emerging Technologies:
These are technologies that are currently in development and just starting to make an impact on the world. AI stands for?
Artificial Individual
Artificial Intelligence
Artificial Independent
Emerging Technologies:
There are many implications of emerging technology. These include:
Devices storing more data putting a strain on existing infrastructure.
Staff may need training on how to use the new technology.
More security is needed on devices that record users bio-metrics.
Choosing an IT System:
There are many factors to consider when choosing the best system for a user. Some factors could be:
User Experience
Security of data on the system
User Needs
The Cost - Budget
The Gender of the User
