Computer Fundamentals
A Joystick is an output device. (TRUE or FALSE)
FALSE
What is the difference between data and information
Data is raw unprocessed, facts while information is processed and meaningful.
What is a computer network?
A network is group of two or more computers linked together so that they can share resources and communicate
Define cybersecurity?
Cybersecurity is the practice of protecting systems, networks, and programs from digital attacks.
What does HTML stand for?
Hypertext Markup Language
What are two troubleshooting steps you can take if your computer won't power on?
Check power source
Ensure cables are properly plugged in
Try using a different outlet
Name three types of errors which can occur when entering data and explain each.
typographical: Spelling error
Software: software failure
Hardware: Hardware failure
Accidental/Deliberate
Transposition: switched numbers like 132 instead of 123
Transmission errors: errors which occur when sending data through different mediums
What are two disadvantages of computer networks?
It can be expensive
Viruses can spread across the network
Name two external cybersecurity threats.
natural disasters
power surge/spike
terrorist activities
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Footer
What is RAM?
Random Access Memory (RAM) is the physical hardware inside a computer that temporarily stores data, serving as the computer's "working" memory.
What is data validation? Provide two examples of data validation checks.
Data validation is the computerized checking of input data for errors before processing. It does not confirm the accuracy of data.
Eg: Range check, length check, consistency check
Name the four types of computer networks
LAN: Local area network
PAN Personal area network
WAN: Wide area network
MAN: Metropolitan area network
Name two methods of physical security you can implement to protect computer systems
locks
security systems
surveillance
alarms
guards
fireproofing
When creating a website, what are two things you should consider?
target audience
time frame
number of webpages
content
layout
budget
Explain one pro and one con of Cloud storage
pros: access, unlimited, free for smaller amouts of storage
cons: requires internet access, may need to pay, vulnerable to theft/hacking.
Explain what is meant by Random file access?
With direct or random-access files, it is possible to go directly to a record without having to look at any other records.
What are three types/methos of wireless communication?
Infrared, bluetooth,Wifi
Explain the social impact of technology in the workplace
Less social contact among employees
Increase in the use of computer games (time wasting)
May be easier to communicate
Privacy concerns with personal data
What are breadcrumbs
Website breadcrumbs are a visual navigation tool that helps users locate where they are within a website’s content and how to return to an earlier page
Explain the purpose of custom-written software.
Written by programmers within a company or contracted out to a software house to meet the specific needs of a company.
Explain what is meant by Index Sequential Access.
Uses an index file to speed up searches on a sequential file.
A ______ network layout has no end. A break in a cable would affect the whole network. Which layout am I?
Ring
Define computer misuse and provide two examples
Computer misuse refers to any activities wherein a computer is used to improperly or illegally cause harm to somebody else or their property.
Eg. identity theft, propaganda, phishing attacks, DOS attacks
Explain the association between a website and a webpage
A website is made up of connected webpages