Exam (elaborations)
FDEME3L NOTES AND SUMMARIES
- Institution
- University Of South Africa (Unisa)
FDEME3L SUMMARIES AND EXAM PREP NOTES
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By: hugocoetzee • 5 year ago
By: kwillmers • 5 year ago
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Information literacy means knowing how to find, analyse & use information –True
Storage differs from memory in that it can hold data, instructions, information
only temporarily while they are being processed, whereas memory holds these
items permanently – false
It is not necessary to have a DVD-ROM drive to use a DVD-ROM – false
Application software consists of programs that control the operations of a
computer & its devices – false
2 popular online services are Microsoft Internet Explorer & Netscape Navigator
– False
The basic communication model includes communications software, which is
programs that manage the transmissions of data between computers – true
An external modem is built on a circuit board that is installed inside a
computer & attaches to a telephone socket using a standard telephone cord –
false
Although each network that constitutes the organization, a single organization
owns & controls the Internet – False
Hyperlinks, called links, allow users to navigate quickly from 1 document to
another, regardless of whether the documents are located on the same
computer or on different computers in different countries – true
To develop a Web page, its necessary to be a computer programmer, & to learn
advanced HTML – False
On a PC, the electronic components & most storage devices reside inside the
system unit – true
A higher system clock speed means the CPU can process fewer instructions
per second than the same CPU with a lower clock speed – false
Input devices include display devices, printers, speakers, headsets, data
projectors, fax machines & multifunction devices – false
4 common types of output are text, graphics, audio & video – true
,The contents of volatile memory are not lost when power is removed from the
computer – false
Storage devices can function as sources of input & output – false
A compact disc – rewriteable(CD-RW) can only be written once & you can‟t
erase the disc‟s contents – false
The operating system, which remains in memory while the computer is
running, allows communication with the computer & other software, such as
application software – true
During the process of developing a document, it is common to switch back &
forth between the word processing activities of creating, editing, formatting &
saving – true
A formula performs calculations on the data in a worksheet & displays the
resulting value in a cell, usually the cell containing the formula – true
Each record in a database contains of related facts called fields – true
Multimedia is the combination of the following elements: text, colour, graphics,
animations, audio, video – true
Digital media applications can be used to create simulations, which are
computer-based models of real-life situations – true
Another name for drill-and-practice software is skill-reinforcement software –
true
A tutorial is a teaching program designed to help individuals learn to use a
product/ concepts – true
Students often presented with a problem & a variety of ways to solve the
problem when using critical thinking applications – true
Viruses commonly infect computers through e-mail attachments – true
A boot sector virus replaces the boot program used to start the computer with
a modified, infected version of the boot program – true
Antivirus programs work by looking for programs that attempt to modify the
boot program, the operating system & other programs – true
, A rescue disk is a floppy disk that contains an uninfected copy of key
operating systems commands & start-up information – true
Before using any floppy disk, a virus scan program should be used to check
for viruses – true
Unlike in many businesses, hardware theft & vandalism in schools doesn‟t
present a difficult security challenge – false
Once a software package is purchased you can make as many copies as
wanted/ needed – false
The term personal computer includes the following type(s) of computers: IBM-
computers, IBM-compatible computers, Macintosh computers.
Data is a collection of unorganized facts
A chip is a device, usually no bigger than 13mm square, that contains many microscopic
pathways designed to carry electrical current & other electronic components
A computer performs 4 basic operations, which often are referred to as the information
processing cycle.
Spreadsheet software can be used to calculate numbers arranged in rows & columns &
often is used by teachers & schools to maintain student grades.
A basic communications system consists of 2 computers, 1 to send & 1 to receive data,
communications devices that send & receive data, a communications channel over
which data is sent.
For telephone lines to carry data, a communication device called a modem is used to
convert digital signals to analog signals
E-mail was one of the original services on the Internet, enabling scientists & researchers
working on government-sponsored projects to communicate with colleagues at other
locations
A FTP server is a computer that allows users to upload & download files using FTP
Netiquette recommends that Internet users avoid sending/ posting flames, which are
abusive / insulting messages
The CPU contains the control unit and the arithmetic/ logic unit.
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