Practise For IGCSE ICT

1. Mainframe computers have several CPUs, have very fast processor speeds, can supporting multiple operating systems and have huge amounts of storage capacity.

True

False

Mainframe computers are known for their high performance and capability to handle large amounts of data. They typically have multiple CPUs, which allow for parallel processing and increased speed. Additionally, mainframes are designed to support multiple operating systems simultaneously, making them versatile and efficient. Moreover, these computers are equipped with extensive storage capacity, enabling them to store and process vast amounts of data. Therefore, the given statement is true.

Explanation

Mainframe computers are known for their high performance and capability to handle large amounts of data. They typically have multiple CPUs, which allow for parallel processing and increased speed. Additionally, mainframes are designed to support multiple operating systems simultaneously, making them versatile and efficient. Moreover, these computers are equipped with extensive storage capacity, enabling them to store and process vast amounts of data. Therefore, the given statement is true.

2. Disadvantages of Laptops

Since they are portable, they are not easy to steal

They have very long battery lives

They have many trailing wires

Heat dissipation is more difficult due to the structure of the laptop computers.

Laptop computers have a more compact and enclosed structure compared to desktop computers, which makes heat dissipation more challenging. The compact design limits the space for proper ventilation, leading to a higher risk of overheating. This can result in decreased performance, potential damage to internal components, and a shorter lifespan for the laptop. Therefore, the difficulty in heat dissipation is a significant disadvantage of laptops.

Explanation

Laptop computers have a more compact and enclosed structure compared to desktop computers, which makes heat dissipation more challenging. The compact design limits the space for proper ventilation, leading to a higher risk of overheating. This can result in decreased performance, potential damage to internal components, and a shorter lifespan for the laptop. Therefore, the difficulty in heat dissipation is a significant disadvantage of laptops.

3. What's an advantage of PC/desktop computer?

Spare parts and connections tend to be hard to get a hold of

The large casing does not allow for good dissipation of any heat build up

Desktops are very portable

Desktops tend to have a faster processor for a given price as compared with laptops

Desktops tend to have a faster processor for a given price as compared with laptops. This is because desktop computers have more space available for larger and more powerful processors, whereas laptops have limited space and need to prioritize portability over performance. As a result, desktop computers can offer faster processing speeds at a more affordable price point compared to laptops.

Explanation

Desktops tend to have a faster processor for a given price as compared with laptops. This is because desktop computers have more space available for larger and more powerful processors, whereas laptops have limited space and need to prioritize portability over performance. As a result, desktop computers can offer faster processing speeds at a more affordable price point compared to laptops.

4. Numeric keypads

advantage

disadvantage

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5. Keyboards enable _____ entry of text into a document

Keyboards enable fast entry of text into a document. Keyboards are designed to allow users to quickly and efficiently input text by pressing keys. This allows for a faster and more convenient way to input information compared to other methods such as handwriting or using a mouse to click on virtual keyboards. With keyboards, users can type at a speed that matches their typing skills, resulting in a fast and efficient input process.

Explanation

Keyboards enable fast entry of text into a document. Keyboards are designed to allow users to quickly and efficiently input text by pressing keys. This allows for a faster and more convenient way to input information compared to other methods such as handwriting or using a mouse to click on virtual keyboards. With keyboards, users can type at a speed that matches their typing skills, resulting in a fast and efficient input process.

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