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Uses of computer and Operating system Flashcards | StudBud
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Uses of computer and Operating system
Uses of computer and Operating system
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1
The role of the operating system is to
allow to execute its own programs and manage its own data
make the computer easy to use.
allow the computer to control its own resources
All three choices are correct
2
Android is
based on Unix O/S
a Linux-based open source O/S
a proprietary software
3
What are the most common email Client software?
Outlook Express, Outlook, Thunderbird
Yahoo Mail, Outlook
Yahoo Mail, Gmail, Hotmail
4
The flat file is a database in which all data
are stored as objects
are organized sequentially into a single table
are stored in separeted tables and files
are organized in a graph that can be accessed through several paths
5
What are the services offered by internet?
a. url, isp, dns, blogs
On line course, emails, E-commerce , information retrival
bookmarks, hyperlinks
6
The design of a user interface is
not dictated by how the underlying O/S works.
dictated by the type of user interface used.
independent of the O/S used.
dictated by how the underlying O/S works.
7
A DBMS is a system software for creating and managing databases
True
False
8
What means of transmission does a user need in order to send an electronic email?
A. A pc connected to the internet and a WAP mobile phone
D. All the two answers: A and B
B. A digital television
C. No a digital television
9
A database is an organized collection of data used to store huge amounts of information and
doesn’t make it possible to look for and retrieve specific data
make it possible to look for and retrieve specific data
10
Databases are organised into
key fields.
file and record.
items of data.
records and fields.
11
Real-time means
responding to input immediately.
responding to output immediately
12
Ubuntu is
an O/S which uses the Unix kernel
an O/S which uses the Linux kernel
13
Linux …
… is easy to use.
… has been criticized for being too easy to use.
… has been criticized for not ensuring ease of use.
… was created by Dennis Ritchie.
14
A pointer is …
usually a picture representing a command
usually an arrow you can move about the screen using a mouse
usually a list of options
15
The main protocols used are:
HTTP – FTP – POP – SMTP
HTTP – FTP – POP
HTTP –SMTP – POP
16
An anti-virus software …
can damage a computer system and its files.
is the main way to reduce the risk of viruses
doesn’t detect new viruses.
17
Operating system allows many programs to be processed at the same time when it is
Multi-programming
Multi-user
Virtual machine
Virtual storage
18
A spreadsheet is made up of
numerical data.
cells.
rows, columns and cells.
row and column.
19
In batch-processing O/S
programs are processed in a sequence
information is moved from the primary to the secondary storage
different parts of the same program can work simultaneously
two or more people can use the system at the same time
20
What is the correct option?
Real-time processing is very useful for big, repetitive jobs.
Most operating systems work in batch processing
In real time processing programs are run in sequence.
Most operating systems work in real time.
21
….. is created by an online community and made available to anyone
Open source.
Proprietary software
22
The two types of databases are
Relational databases, non-relational databases
Non-relational databases
Relational databases
23
In multithreading O/S,
different parts of the same program can work simultaneously
programs are processed in a sequence
two or more people can use the system at the same time
information is moved from the primary to the secondary storage
24
Unix consists of
the kernel, the shell, the programs
the kernel
the kernel, the history
25
What do you need to get connected to the Internet?
a telephone
a modem
A telephone line and a modem.
an e-mail
26
The advantage of using an email client software is that
the previous emails can't be read
the emails can't be written offline
the emails are stored on your PC
27
Visicalc is
is the first database
is the first spreadsheet appeared in the late 1970s
is the latest and modern database
the latest and most modern spreadsheet
28
… is called a small picture that represents an action on a GUI
A window
An icon.
An arrow
29
The most common examples of web based email are
Yahoo Mail, Gmail, Hotmail
Outlook Express, Outlook, Thunderbird
30
Conditional formatting is a feature of spreadsheet that
does'nt allow to apply different formats
allows to apply different formats
31
A URL is
a country code.
the address of a web page.
the domain name.
the language the web uses.
32
GUI stands for…
Graphical User Interface.
Comman-Driven Interface
Menu-Driven Interface
33
With email you can
write software.
attach files
download music.
take notes.
34
You can find pages on the Net
using search-engines
typing words in the search bar
using search-engines, portals and also typing in the URL
35
Linux is
a Unix-like computer operating system.
All both answers are correct
one of the most prominent examples of open source development and free soft
36
Using an e-mail client,
the messages are not dowloaded into your host computer
a particolar ISP is not necessary
emails can be written offline
users can access their account on a website with an internet connection
37
A blog is
an application program which is written to solve specific problems
a software
a website where an individual posts regular comments
38
Formulas are used for
making calculations and displaying the results inside a column
making calculations and displaying the results inside a cell
making calculations and displaying the results inside a row
39
The shell ….
is how the computer presents itself.
interprets the commands the user types in.
is made up of three parts.
40
GUIs are
intuitive and there is no need to learn commands.
commands have to be learnt.
difficult to use.
no representation of what will be output or printed.
41
Bookmarks are
browsers
special lists of URLs.
search engines.
hyperlinks.
42
The file size can be reduced in a database
using non-relational database
using formula
using relational database
using coding
43
Hypertext is
a collection of user groups.
data that contains links to other relevant data.
data that contains links to other hypermedia.
a document that has links to other types of media (pictures ...
44
Virtual storage …
is an expansion of the CPU.
is an expansion of secondary storage
allows several users to run several tasks concurrently on one processor.
is an expansion of primary storage.
45
Encryption is
a web site which allows people with shared interests to meet
a way of protecting data if it falls in the wrong hands
a way of retrieving the previous webpages
