COMPUTER STUDIES QUESTIONS WITH ANSWERS
meaning of data privacyData privacy means that data or information belonging to an individual should not be accessed by or disclosed to other people. Its an individual's right to determine for themselves what should be communicated to others. meaning of data securityData security is the confidentiality, integrity and availability of data. Confidentiality of data implies that sensitive data or information belonging to an organization or government should not be accessed by or disclosed to unauthorized people, such data includes office documents, chemical formula, employee's details, examinations etc. Integrity of data implies that data should not be modified without owner's permission. Availability of data implies that information must be available on demand. DISSIMILARITY between data privacy and data security
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Why should people resist computers in their work place?01.
Computers may lead to job replacement and displacement.
This means that computers may make a person lose his/her job or root for the transfer of a worker to another department. A condition like this one may make people resist computers at their work place. 02.
Computers require skilled manpower.
Usage of computers requires the staff to be trained for necessary skills to handle them. For those who don't see training as a good idea, will resist its implementation in a work place. 03.
Computers have adverse effects on our health.
It is believed that computers cause cancer, electromagnetic radiation, changes in brain activity, eye problems and sleeping patterns. However, scientists are still researching on these areas to establish elements of computers that are responsible for these problems and how they can be avoided. 04.
Some people are just bureaucratic.
Some people in work places are just difficult to change, they follow excessively complicated administrative procedures that demands things to be done they way they used to be. Examples of these bureaucrats are school heads who demand professional records to be handwritten rather than being typed and printed. They think that handwritten records are more original than the printed ones. These are the kind of people who will never tolerate computer changes in their institutions. 05.
Attitude problems leading to computer-phobia
There are certain personalities who just hate computers because they either acquired this attitude myth or had previous shallow experience with computers. These people may likely resist the introduction of computers in their workplace and if it is introduced, they will blame it for everything bad that happens. 06.
Fear of increased work in their workplace
Computers sometimes increases the amount of work in a work place. This is especially if new programs and applications are added to be used by the system. And if there will be no addition of manpower, handling them on top of your normal tasks can sometimes be overwhelming, in this case, people tend to resist them in their work places for fear of additional tasks. 07.
Fear of increased initial costs
Introduction of computers require high initial costs however their benefits outweigh the costs (cost effectiveness). Some people may oppose implementation of computers in their workplace simply because they fear the initial costs. 08.
Poor communication skills/strategies
Bad communication skills from the top management to workers below them may trigger workers to resist technology change. Communication breakdown, misinformation or inaccurate communication can be a recipe on why people may opt to resist technological change. ​ Changes that are mandated with little or no communication, on the other hand, are often poorly received, since employees may feel that the change is being shoved down their throats. When it comes to change management there’s no such thing as too much communication. If there is no immediate information to communicate during the change, telling employees that there is no update regarding the ongoing change is communication! Don’t just keep quiet; this is also the time to maintain an open door policy regardless of where you are placed in the organization. 09.
The Rapid Pace of Change
​ People often reject technology because it presents changes, big or small, to their immediate world, a world to which they have worked hard to adjust. People usually resist to anything that disturbs their social order and if done rapidly, change may never be taken seriously, this can lead to drastic opposition and resistance. 10.
Poor Timing:
​ This is another viable reason why employees resist introduction of computers at work. Change must be introduced when there are no other major initiatives going on. Sometimes it is not what a leader does, but it is how, when and why she or he does it that creates resistance to change! Undue resistance can occur because changes are introduced in an insensitive manner or at an awkward time. ​Works Cited
What it means by printing multiple copiesPrinting multiple copies implies that two or more papers are printed at the same time by only one printer. This is only possible by the use of impact printers such as a dot-matrix and a daisy wheel printer because they have special hammers that produce characters on a piece of paper. And behind every paper, there is a coupon copy that produces characters on another paper. This type of printing is majorly done where monetary transactions are carried out such as a bank. For example; when paying school fees through a bank, the bank produces three copies of receipts (whitish, blueish and pinkish) in color. One copy for the bank, another for the school and the last one for your own records. To produce these receipts (vouchers/slips), the bank prints them in multiple copies using impact printers. What it means by printing multiple pagesPrinting multiple pages is a situation where printers automatically make characters on a piece of paper (one paper at a time) but automatically pulls the next paper in a series once the current is over, this process repeats until the printing task is accomplished. Printing multiple pages depends on the printing mechanism of the printer. There are those printers that can only print one side of the page at a time and others reverse the page to print on the other side. It is called back to back printing. Any type of printer can handle multiple page printing, however the desk-jet printer and laser-jet printers are preferred for this job because of their printing speed. Images courtesy of Pinterest
FORMATTING FEATURES OF WORD PROCESSORSwHAT ARE FORMATTING FEATURES?
These are word processor enhancements that makes user's work appealing to the eye.
What are these formatting features?
Font color is used to change text color
Makes text look like it was highlighted by a marker pen.
​Apply a visual effect to the selected text such as shadow, glow or reflection
Superscript creates a small text above the normal line of text.
Subscript creates a small text below the normal line of text.
​Draws a line through the middle of the selected line
​Bolding makes text thicker and darker
Italics make text slant forward Underline is a feature that puts a line below selected text
this is a feature used to change text font themes
this is a feature used to increase
or decrease the size of text
Numbered list is a feature that index items in numbered style e.g.
​Increasing indent pushes text away from the page margin
Decreasing indent pushes text closer to the page margin
this is a formatting feature used to increase or decrease spaces between lines of text and paragraph
WHAT ARE ELECTRONIC SPREADSHEETS?WHAT ARE TYPEWRITERS?WHAT ARE THE MERITS OF SPREADSHEETS OVER TYPEWRITERS?
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STATE REASONS WHY IS RECOMMENDED TO HAVE STANDARD FURNITURE IN THE COMPUTER LABORATORYWhat it means by standard furnitureThese are tables, chairs and shelves that have the quality required to set them up in the computer laboratory for use of computers and computer users. There are two common types of furniture that can be found in the computer laboratory namely:
Why standard furniture?
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STATE FIVE WAYS HOW KENYAN YOUTHS CAN USE COMPUTERS TO CREATE JOBS1. RETAIL COMPUTERS2. ENGAGE IN PROGRAMMING3. ENGAGE IN GRAPHIC & ENGINEERING DESIGNS4. LAUNCH A COMPUTER SCHOOL5. ENGAGE IN ONLINE MARKETING & BLOGGING![]()
online marketing is the second best paying career in the field of computers. Internet marketing, or online marketing, refers to advertising and marketing efforts that use the Web and email to drive direct sales via electronic commerce, in addition to sales leads from websites or emails. Learn more @ https://learndigital.withgoogle.com/digitalskills/course/digital-marketing
6. LAUNCH CLOUD COMPUTING SERVICES![]()
cloud computing is the act of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. Cloud computing business is the process of installing server computers to store, manage and process data on behalf of your clients (customers) at a fee agreed over a period of time. this can also involve SEO services, webdesign services, database management etc.
7. REGISTER, BUY, PARK AND SELL DOMAINS, DESIGN WEBSITES AND MOBILE APPLICATIONS![]()
a domain is a name that represents the IP address of your website. for example, www.atikaschool.org, atikaschool.org is the domain name that represents (199.34.228.77) , .org is the extension that represent organisation and WWW is a name given to any device on the same network. You can therefore start a business of selling domains such as xxx.co.ke
8. OFFER TECHNICAL SERVICES SUCH AS REPAIR AND MAINTAINANCE9. ENGAGE IN NETPRENEURSHIP AND FREELANCE SERVICES10. PRODUCTION OF VIDEOS, ENTERTAINMENT, PODCASTS & MUSIC LYRICSSTATE THREE SAFETY PRECAUTIONS YOU WOULD UNDERTAKE IF THE COMPUTER LABORATORY YOU ARE WORKING IN CATCHES FIRE1. RAISE ALARM2. RICH FOR THE FIRE EXTINGUISHER AND TRY TO PUT OFF3. TRY TO EVACUATE OTHER STUDENTS4. IF YOU CAN SPOT POWER MAIN SWITCH, TURN IT OFF.5. BEND LOW AS YOU EXIT TO AVOID SUFFOCATION FROM SMOKE.STATE FOUR REASONS WHY SMALL COMPUTERS SUCH AS PALMTOPS SOMETIMES TEND TO BE MORE EXPENSIVE THAN DESKTOPS WITH THE SAME FEATURES.1. Small computers have high demand. This pushes prices high2. The technology used to manufacture small computers is more advanced3. They are portable4. Have internal battery5. They consume less power6. They occupy less space7. They have more multimedia capabilities and social media applications that drives up costs8. They can be used in the absence of power9. Some are made from precious metals such as goldWRITE THE FOLLOWING ACRONYMS IN FULL1. AI
Artificial Intelligence
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Artificial intelligence (AI) is a branch of computer science that emphasizes on the design and creation of intelligent machines that work, behave and respond like humans. Some of the characteristics that AI emphases on include: Speech recognition, Learning, visual perception, logical and arithmetic analysis and translation between languages.
2. ICT
Information and Communication Technology
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Information and communication technology (ICT) is an advancement term for information technology (IT) that emphises on the technologies that provide access to information through the integration of telecommunications (telephone lines and wireless signals) and computers, as well as necessary enterprise software, middleware, storage, and audiovisual systems, that enable users to access, store, transmit, and manipulate information.
3. ENIAC
Electronic Numerical Integrator And Computer
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In 1942, physicist John Mauchly and John Presper Eckert proposed an all-electronic calculating machine. The result was ENIAC (Electronic Numerical Integrator And Computer), built between 1943 and 1945 — the first large-scale computer to run at electronic speed without being slowed by any mechanical parts. ENIAC was designed and primarily used to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory, its first program was a study of the feasibility of the thermonuclear weapon. In 1953, the Burroughs Corporation built a 100-word magnetic-core memory, which was added to the ENIAC to provide it with memory capabilities. By 1956, the end of its operation, the ENIAC occupied about 1,800 square feet and consisted of almost 20,000 vacuum tubes, 1,500 relays, 10,000 capacitors, and 70,000 resistors. It also used 200 kilowatts of electricity, weighed over 30 tons, and cost about $487,000. Sources: https://www.computerhope.com/jargon/e/eniac.htm, https://whatis.techtarget.com/definition/ENIAC, https://en.wikipedia.org/wiki/ENIAC
4. UPS
Uninterruptible Power Supply
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This is an Uninterruptible Power Supply. It cleans power as it enters into the computer by eliminating power surges and brownouts, it alerts the user when power goes off by producing a beeping sound and also keeps power to power the computer shortly after blackout so that the computer user can be able to save his/her work.
5. CPU
Central Processing Unit
Read more about the CPU ...
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DESCRIBE THE FOLLOWING TYPES OF COMPUTERS: DIGITAL,DEDICATED, MAINFRAME COMPUTERS
Mathsisfun.com describes discrete data as a type of data that can only take certain values such as the number of students in a class can only be represented as a whole number (this data can either be 40 or maybe 60 but it can never be 60.5 (this is continuous data)); continuous data is represented with values which can be rational such as the height of a person, weight or mass of a body or time in a race.
In addition Numerical Data can be Discrete or Continuous: Discrete data is counted while Continuous data is measured
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When computers are classified according to their physical size, the word mainframe is always mentioned. This is a type of computer which is the second largest of all computers, only second after super computers but bigger than mini and micro computers. They are relatively more powerful in processing with large capacity in memory and storage but inferior to super computers if measured in capabilities.
STATE ANY FOUR DEVICES FOUND IN THE COMPUTER CHASSIS (SYSTEM UNIT)
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The CPU is the single most expensive gadget in a computer and the most important of all other gadgets. It is also called a processor or a microprocessor (a terminology used to refer the CPU of micro computers). The main role of the CPU is to manipulate both logical and numeric data for something meaningful called information.
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STATE 5 CHARACTERISTICS OF FIRST GENERATION COMPUTERS
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Briefly explain the following terms: Cell, Range, Label, Value, FunctionExpected Response
​Students sat for a test in computer studies. The table gives the marks obtained and the number of students obtaining the marks. Write a program in a structured high-level language to calculate the mean of the result. The formula for the mean is given below.
​EXPECTED RESPONSE;
Program mean;
Var Sumxf,sumf:integer Mean:real; Begin Sumxf:=(10*1)+(15*2)+(20*6)+(25*5)+(30*10)+(35*6)+(40*4)+(45*2)+(50*1)+(55*1); Sumf:=1+2+3+4+10+6+4+2+1+1; Mean:= sumxf/sumf; Writeln(mean); Readln; End. Related Searches
Testing of a program should not be miscued with system implementation and testing of SDLC stages.
Testing of a program is also called debugging and its done by programmers unlike system testing phase done by Quality assurance professionals. Expected Response
For debugging to take place, the programmer needs the following tools.
To effectively establish the difference between system software and application programs, we should define the two.
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