1st Year Computer Guess Paper

• What is Communication Media in computer? Explain Guided Media in detail.
• What are pointing devices? Explain any three pointing devices.
• What are mark and character recognition devices? Describe any three in detail
• What is network standard? Discuss different types of network standards.
• Define data transmission mode? Explain its types with examples.
• Explain difference between LAN and WAN?
• What is Communication Media in computer? Explain Unguided Media in detail.
• Define language processors? Explain different types of language processor.
• Write a note on different network topologies?
• Explain different network models? What are the advantages and disadvantages of each model?
• What are impact printers? Explain the types of impact printers.
• What are non-impact printers? Explain the types of non-impact printers.
• Define virus? Discuss different types of computer viruses.
• Define anti-virus? Give examples. Write some benefits of using anti-virus?
• What is Bus Interconnection? Explain different types of system buses.
• Briefly discuss different security threats to data security. What are the solutions to these threats?
• Define computer system. Describe its primary components?
• What is RAM? Explain different types of RAM.
• What is ROM? Explain different types of ROM.
• What is meant by encoding of data? Explain different coding schemes to represent data.
• Explain different causes of computer virus. How virus is activated.
• What is Instruction format? Explain various Instruction Code Formats.
• What is Instruction Set? Explain different types of operations performed by the computer.
• What are CPU registers? Briefly describe special-purpose and general-purpose registers.
• Explain different ways of transferring data from peripheral devices to the computer?
• What is plotter? Explain different types of plotters.
• Microwave : Microwave data transmission differs from the previously mentioned communications channels in that data is transmitted through the air instead of through cables or wires. Microwaves are high-frequency radio waves that can only be directed in straight lines. Consequently, microwave transmission is usually limited to communications occurring within the limits of a particular city or community usually twenty to thirty miles apart. Satellites : Instead of antennas, satellites can also be used to transmit microwave messages from one location to another. Satellites rotate approximately 23,300 miles above the earth in precise locations / orbits. Satellite transmission stations that can both send and receive messages are known as “Earth Stations”. A major advantage of satellite transmission is that large volumes of data can be communicated once. A particular drawback is bad weather can severely affect quality of satellite transmissions. This wide range broadcasting ability has given rise to a multitude of different satellites carrying all kinds of information such as telephone calls, television channels, internet traffic, military communications, weather data, and even radio stations. Mobile Communications : It is radio-based networks that transmit data to and from mobile computers. Computer can be connected to the network through wired ports or through wireless connections.
• Use of Computer in Weather Forecasting: Computer based weather forecasting depends on accurate collection of data from weather stations, airports, satellites, different sensitive devices (which are situated on huge towers and buildings etc.) all around the world. The data is collected on atmospheric phenomena over a region. The computer then generates a forecast of how the air will change. SPARCO Weather forecasting department offers analysis of live weather data, and provide help to make business decisions based on weather forecasting.