WorksheetsICT LECTURE 3-4
Total questions: 46
Worksheet time: 24mins
What is a major branch of computer software?
Operating Systems
System Software
Web Applications
Mobile Applications
All are major branches
What is NOT a purpose of system software?
Interfaces with the hardware
Manages running applications
Software for the user
Keeps the system running
System software is for system processes
The two major branches of computer software are system software and application software.
верно
True
False
Languages that the hardware uses are called high-level languages
True
False
The purpose of a programming language is to help programmers write software
True
False
An operating system is ...
Machine code
Application software
System software
User software
Optional software (not needed)
An operating system is system software that acts as an interface between the user and the computer hardware and provides common services for computer programs.
True
False
What does an operating system NOT interface with?
System hardware (CPU, Memory)
Application software
File system
Network interface card
It interfaces with all of these components
A single-tasking operating system ...
Only allows one user logged on at a time
Allow multiple processes to run at the same time
Is the same thing as a real-time OS
Distributes or assigns single tasks to different computers
Only allows a single process or task to run at a time
Most operating systems we use are multi-tasking; multi-user, and multi-processing.
True
False
Real-time operating systems are not needed because today’s computers are very fast.
True
False
Application software is a software ...
for the system
that manages memory
for only a mobile device
for the Windows operating system
for the user
One category of application software is ...
complicated applications
advanced applications
basic applications
multi-user applications
single-tasking applications
What describes specialized applications?
Advanced
Very expensive
Usually requires a high degree of skill to use
Only uses a command line interface
Software used by very smart people
What action does NOT use basic software?
Writing a cover letter using Microsoft Word
Checking email using a FireFox or Google Chrome
Sending a message using WhatsApp or Telegram
Designing a bridge using West Point Bridge Designer
Streaming a video using YouTube
What best describes a command line interface?
Uses both text commands and icons.
Uses icons or graphics that the user clicks.
Requires a user to type in command only using text.
Is fast and easy to learn.
Keeps the user focused on their task because they are not distracted by the user interface.
HCI is the interaction between humans and computers.
True
False
The goal of HCI is to create systems for humans to use even if they are difficult and complicated.
True
False
What are the three components of HCI?
Human
Internet
Touchscreen
Computer
Interaction
What is the golden rule of HCI?
Computers are the most important part of HCI
Create beautiful interfaces to engage the users
Allow users to interact with a computer
People should come first
HCI focuses on beautification or adding features to user interfaces.
True
False
What was the purpose of ARPANET?
To develop a platform for the WWW
To share research information
An experiment to test sharing resources
A university project to share MP3 files
What came first, the internet or the web?
The internet
The web
They arrived at the same time
In what year was the first website launched?
1970
1982
1991
2001
There are more than 1 billion websites on WWW.
True
False
We live in a disconnected world. The internet or WWW is not important.
True
False
How has the internet and www NOT impacted our lives?
We have access to online markets
We can have an active relationship with someone who is far away
We have easy access to knowledge
We can transfer money electronically
All are ways that the internet and WWW have impacted our lives
The WWW created distribution networks (e.g., information is no longer concentrated in a few locations).
True
False
The internet and WWW have had only positive impacts on society. There are negative impacts.
True
False
Which statement is true about how the internet and the web affect economies?
It is not practical to do business online.
People would rather shop in at the bazaar than online.
Online business is not a place for children. They are inexperienced and will only lose money.
Anyone anywhere can start an online business.
It is not safe to buy things online. There are too many shady vendors who want to take advantage of the seller.
The internet remains the same. The internet you use today will be the same internet that you will use in 20 years.
True
False
What is NOT true of a network?
A network is a way to get “stuff” between 2 or more “things”
Networks usually do not have internal connections
A network allows sharing information among computer
The postal system is an example of a network
Metros are an example of a network
A computer network must have more than 2 devices to be called a network.
True
False
What is the scale of a PAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a LAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a MAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the scale of a WAN?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What scale of a network is the internet?
Vicinity (e.g., Bluetooth)
Building (WiFi, Ethernet)
City (DSL)
Country (Large ISP)
Global
What is the most common type of network topology used today?
Fish
Star
Bus
Ring
Tree
What is unique about a mesh network?
They are so complicated to use that only smart engineers can understand them.
Every device connects to a central location.
The data only goes in one direction.
Any device becomes a router and relays the message until it reaches its destination
There are no true mesh networks. All mesh networks are hybrids
A network that uses different network topologies is called a hybrid network.
True
False
Networks are simple and can easily be described without using a networking model.
True
False
What the three basic layers of a networking model?
Physical
Virtual
Application
Transport
Connection
Which is NOT part of the five layers of the simplified layer model?
Application
Transport
Network
Data
All of these choices make up the simplified layer model
Protocols are sets of rules.
True
False
What is the function of the physical layer?
Transmit data by an electric voltage, radio frequencies, or light over a physical medium.
Sends data node-to-node.
Provides network addressing and routing.
Delivers data from process-to-process (end-to-end)
Provides application services to users and programs
