unit 1 test Flashcards
(109 cards)
1
Q
What is application software?
A
Application software allows end users to complete tasks, such as creating a report or a presentation.
2
Q
List different types of application software.
A
- Productivity software
- Graphics software
- Communications software
3
Q
What is the main feature of open source software?
A
The source code is available to read and modify.
4
Q
True or False: Proprietary software is privately owned by the software company.
A
True
5
Q
What are the three main protocols used in email systems?
A
- SMTP
- POP3
- IMAP
6
Q
Fill in the blank: _______ software has a source code that is privately owned.
A
Proprietary
7
Q
Define the term ‘digital device’.
A
A digital device is an electronic device that uses digital data (such as 1s and 0s) as opposed to analogue data.
8
Q
What are multifunctional devices?
A
Devices that can perform multiple functions, such as inputting and outputting data.
9
Q
Name an example of a personal computer.
A
Desktop or laptop
10
Q
What is the purpose of a mail server?
A
To provide access to email services for all the users on a network.
11
Q
What is a navigation system?
A
A device that uses GPS to locate the user’s position on a digital map and provide directions.
12
Q
What are data capture and collection systems?
A
Devices that collect and input data through automated systems rather than direct data entry.
13
Q
List examples of data capture and collection systems.
A
- Barcode scanner
- Optical mark reader
- EPOS system
14
Q
What are the implications of using IT systems?
A
- Protecting data
- Moral and ethical issues
- Legislation and codes of practice
15
Q
What should be considered when choosing software?
A
- Ease of use
- Reliability
- Capability
16
Q
Explain the role of protocols in IT systems.
A
Protocols allow communication between devices and systems, ensuring data is transmitted correctly.
17
Q
What is the importance of case studies in exam preparation?
A
They allow you to apply knowledge of the unit’s content to real-world situations.
18
Q
Fill in the blank: _______ is used for retrieving emails from an incoming mail server.
A
POP3
19
Q
True or False: Open source software is always free to use.
A
False
20
Q
What is a key drawback of proprietary software?
A
It can be costly.
21
Q
What does RDBMS stand for?
A
Relational Database Management System
22
Q
Identify the stages of normalisation in database design.
A
- Unnormalized form
- First normal form
- Second normal form
- Third normal form
23
Q
What is a user interface in the context of database management?
A
The means by which a user interacts with a database system.
24
Q
What is the primary function of utility software?
A
To perform maintenance tasks for computers and enhance their performance.
25
Define 'cloud storage'.
A service that allows data to be stored on remote servers accessed via the internet.
26
List the types of operating systems.
* Real-time
* Multi-user
* Distributed
* Network
27
What are the implications of storing data online?
* Security concerns
* Accessibility
* Compliance with legislation
28
What is an example of a data capture system used in department stores?
Barcode scanner
## Footnote
A barcode scanner reads barcodes and converts the information into data.
29
What is an example of an optical mark reader?
It reads pencil or pen marks on specially designed printed forms
## Footnote
Such as lottery tickets.
30
What is an EPOS system?
An electronic point of sale system that records sales and updates stock levels.
31
What role do digital devices play in education and training?
They provide access to learning materials, allow submission of work, and facilitate communication with tutors.
32
Name two uses of digital devices in personal life.
* Watching digital TV
* Internet banking
33
List two uses of digital devices in manufacturing.
* Stock checking
* Producing and sharing business documents
34
What is the function of a keyboard?
To input alphanumeric characters and symbols.
35
What is the primary use of a mouse?
To select items on screen.
36
What does a scanner do?
Converts hard copy text or images into a digital format.
37
What is the purpose of a webcam?
Inputs video and still images directly into a computer.
38
What is an example of an accessibility device?
Trackball
## Footnote
An easier-to-use alternative to a mouse.
39
What is the function of a Braille embosser?
Outputs text as Braille cells.
40
Name a type of automatic data processing device.
Biometric readers
## Footnote
Reads fingerprints, hand prints, or irises.
41
What is a limitation of using a USB memory stick?
Low storage capacity compared to SSDs and HDDs.
42
What characterizes solid state drives (SSDs)?
Very fast data read/write speeds and low power consumption.
43
What is the main feature of optical disks?
Used for software, music, and movies.
44
What does an operating system manage?
* CPU
* RAM
* Software and hardware resources
45
What is a real-time operating system (RTOS)?
Processes inputs and responds instantaneously.
46
What is a single-user multitasking operating system?
Allows one user to run multiple applications simultaneously.
47
What is the OSI model used for?
Simplifying networking in a computer.
48
What are common security features in operating systems?
* User authentication
* Antivirus software
* Firewall software
49
What is the function of memory management in an operating system?
Tracks and allocates memory to processes.
50
What is a command line interface (CLI)?
Allows user interaction through typed commands.
51
What is a graphical user interface (GUI)?
Users interact using a pointer or touch screen to select icons and menus.
52
What is a menu-based interface?
Users interact using a simple menu that presents options to choose from.
53
What is utility software used for?
To manage system resources and optimize computer systems.
54
What does utility software do?
Utility software is used to manage system resources and optimize and maintain computer systems.
## Footnote
Examples include disk utilities, antivirus scanners, and backup utilities.
55
What is the purpose of disk utilities?
Disk utilities are designed to maintain the performance of a computer’s disk drive.
## Footnote
They include tools like disk defragmenters and file compressors.
56
What does a file compressor utility do?
A file compressor reduces the size of files for easier backing up and sharing.
## Footnote
It also decompresses files for later access.
57
What is the function of backup utilities?
Backup utilities automate the process of backing up files to save time and ensure data is not lost.
## Footnote
This is especially useful for regular backups.
58
What does a disk defragmenter do?
A disk defragmenter reorganizes fragmented data on a disk drive for quicker access.
## Footnote
It is primarily necessary for HDDs using Windows file systems.
59
What is the role of network utilities?
Network utilities maintain good network traffic and keep networks secure.
## Footnote
Examples include firewalls and antivirus software.
60
What is the purpose of firewalls?
Firewalls prevent unauthorized access to a network by monitoring and blocking suspicious traffic.
## Footnote
They are essential for protecting against threats like hackers.
61
What does antivirus software do?
Antivirus software prevents, detects, and removes viruses from a computer system.
## Footnote
It is crucial for maintaining system security.
62
What do system monitors do?
System monitors track resources and performance of PC systems, helping identify causes of poor performance.
## Footnote
They can provide insights for troubleshooting.
63
What are the implications of different file types?
The choice of file type affects compatibility, quality, and file size.
## Footnote
Some file types only work with specific software, which can lead to issues.
64
What is the advantage of JPG file format?
JPG files provide good compression for images, making them smaller in size.
## Footnote
This is beneficial for sharing and storing images.
65
What is a drawback of BMP files?
BMP files are uncompressed, resulting in very large file sizes.
## Footnote
This can be impractical for sharing and storage.
66
What is a common use for PDF files?
PDF files represent documents in a format that preserves layout and formatting across different devices.
## Footnote
They are widely used for sharing documents.
67
What is the benefit of using PNG file format?
PNG uses lossless compression to maintain high image quality while keeping file sizes low.
## Footnote
It also allows transparency in images.
68
What is proprietary software?
Proprietary software has source code that is privately owned and requires payment for use.
## Footnote
It typically has more features but less customization.
69
What is open source software?
Open source software has publicly available source code that can be modified and is usually free to use.
## Footnote
Support is often community-driven.
70
What factors should be considered when choosing software?
Factors include ease of use, reliability, capability, and performance.
## Footnote
Each factor affects the overall user experience and effectiveness.
71
What are emerging technologies?
Emerging technologies are those in development that are beginning to impact business and society.
## Footnote
Examples include artificial intelligence, robotics, and virtual reality.
72
How do emerging technologies impact daily life?
They change how we live by enhancing leisure activities, improving security, and increasing efficiency in tasks.
## Footnote
Examples include automated vacuum cleaners and self-driving cars.
73
What is the Internet of Things (IoT)?
The IoT refers to interconnected devices that communicate and share data with each other.
## Footnote
It enables smart homes and advanced data analytics.
74
What is the significance of data security in emerging technologies?
As technologies evolve, they require stronger data security measures to protect sensitive information.
## Footnote
This includes biometric data and personal information.
75
What is a wired connection method?
Wired connection methods use physical cables to connect devices.
## Footnote
Common types include Ethernet, USB, and HDMI.
76
What are the advantages of fiber optic cables?
Fiber optic cables offer high data transfer rates and can be used over long distances.
## Footnote
They are also less susceptible to interference.
77
What is the limitation of coaxial cables?
Coaxial cables have limited bandwidth compared to other wired methods.
## Footnote
They are generally more susceptible to interference.
78
What are the uses of WiFi?
WiFi connects devices wirelessly to local and wide area networks, including the internet.
## Footnote
It allows for mobility and convenience.
79
What is a disadvantage of 4G connections?
4G connections can be affected by poor weather and have high latency.
## Footnote
They may also incur ongoing costs.
80
What is a Local Area Network (LAN)?
A LAN is a network that connects devices over a small geographical area, such as a home or office.
81
Name two advantages of using WiFi for a home network.
* No ongoing costs
* Allows true mobility
82
What is a Wide Area Network (WAN)?
A WAN is a network that covers a large geographical area, such as a country or the whole world.
83
What does PAN stand for?
Personal Area Network
84
True or False: Bluetooth is commonly used to create a PAN.
True
85
What is a Virtual Private Network (VPN)?
A VPN creates a secure network connection over a public network using encryption.
86
Fill in the blank: _______ is used for transferring emails between mail servers.
SMTP
87
What does TCP/IP stand for?
Transmission Control Protocol and Internet Protocol
88
What is the main function of the Transmission Control Protocol (TCP)?
TCP is used to create packets of data and reassemble them at the destination.
89
What is the purpose of the Internet Message Access Protocol (IMAP)?
IMAP syncs messages with the mail server instead of downloading them.
90
What are the two main types of data compression?
* Lossy
* Lossless
91
True or False: Bandwidth measures the time delay for a data packet to reach its destination.
False
92
What is the function of a firewall in data transmission?
Firewalls monitor traffic to prevent unauthorized access and harmful data packets.
93
Explain two factors that affect the choice of network components.
* Security features
* Compatibility with existing infrastructure
94
What is the role of a codec?
A codec compresses and decompresses video and audio files for faster transfer.
95
What is the effect of high latency on online gaming?
High latency can cause delays in real-time updates, resulting in a poor gaming experience.
96
Name one disadvantage of using WiFi for a home network.
Affected by poor connectivity and weather conditions.
97
What is the main advantage of using Ethernet in a LAN?
Ethernet provides reliable and high-speed connections.
98
What does HTTP stand for?
HyperText Transfer Protocol
99
What is the difference between HTTP and HTTPS?
HTTPS is the secure version of HTTP, using encryption for data transmission.
100
Fill in the blank: _______ is used to retrieve emails from the mail server.
POP3
101
What is the purpose of encryption in data transmission?
Encryption ensures that intercepted data cannot be read.
102
What does bandwidth measure?
Bandwidth measures the rate of data transfer over a network.
103
What impact does high bandwidth have on file downloads?
High bandwidth allows files to be downloaded faster.
104
What is the significance of user authentication in network security?
User authentication prevents unauthorized access to the network.
105
True or False: The internet is the largest WAN.
True
106
What is the role of the Session Initiation Protocol (SIP)?
SIP is used to create, control, and end VOIP connections.
107
Explain how compression affects video quality.
Compression can lead to a loss of quality in resolution or frames per second.
108
What is a key consideration when choosing network infrastructure for future growth?
Scalability to support additional users and devices.
109
What is the implication of using proprietary protocols for voice and video calls?
Proprietary protocols may limit compatibility with other systems.
