Study the flowchart below and write an appropriate pseudo code of the same
Hint:
Before answering this question, you should determine which control structures to use. Since the condition comes before the statement and since there is looping/repetition, the for loop becomes relevant to use. Solution For count = 1 to 10 Do PRINT “ Enter a Number (N)’ INPUT N Sum = Sum + N END FOR Display sum Differentiate between optical and magnetic scanning techniques used for input and give two
|
Parallel Cables | Serial Cables |
Transmit information simultaneously using a set of many conductors (wires) |
Support transmission of data one bit at a time |
Transmit data faster than serial cables | Are slow in transmission of data |
Transmit data over short distances | Transmit data over long distances |
For more information, visit New Haven Display |
Explain the following storage disks
i) Zip disks
ii) Jaz disks
They are high capacity disks that resemble the floppy disks. They are slightly larger and thicker in size .It can hold as much as 250MB
Jaz disks
They are small portable disks with high storage capacity of about 1GB to 2Gb.They are used to store data that require large storage
Give four examples of optical disks.
Digital versatile disk (DVDs)
Compact disk (CD)
Optical card
Optical tape
What do you understand by the following terms:
i) Industrial espionage
ii) Eaves dropping
iii) Surveillance
–Spying on your competitor to get information that you can use to counter or finish competitor. The aim is to get ideas on how to counter by developing similar approach or sabotage.
ii) Eavesdropping
-Tapping into communication channels to get information
iii) Surveillance
This is keeping of a profile of all computer activities done by another person
Differentiate between the following:
i) surf/browse
ii) Hyperlink
- It is the process of accessing internet resource like the web page and website
Hyperlink
It is a text on picture on an electronic document especially webpage that cause other web pages to open when the link is clicked.
Explain two functions performed by the UPS
- Filters power by eliminating brownouts and power surges before it enters into the computer
- Alerts the user when power goes off
- Temporary stores power to let the user save his/her work before the computer goes off
List three data processing methods
- Manual
- Mechanical
- Electronic
Define the term internet.
List four services offered by internet
- World wide web
- Electronic mail
- Electronic commerce
- Electronic learning
Differentiate between fourth generation languages and third generation languages
- Used integrated circuits (ICs) to process data
- Were large in size compared to fourth generation language
- Used VLSI-very large scale integrated circuits to process data
- Were smaller in size compared to third generation
State three communication methods without cables
- Microwave
- Satellite
- Radio transmission
- Microwave communication
- Infrared Communications
- Bluetooth and Zigbee
- Paging systems
- Broadband wireless access
- Cellular telephone systems
- Cordless Phones
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