Introduction to ICT questions

1. Easy to set up: Bus topology is relatively simple to set up, as it only requires a single cable to connect all devices. This makes it a cost-effective option for small networks.
2. Easy to extend: Bus topology is easy to extend by simply adding more devices to the bus. This makes it a convenient option for networks that need to be expanded over time.
3. Low cost: Bus topology is a cost-effective option as it only requires a single cable to connect all devices, which is cheaper than other network topologies that require multiple cables.
4. Easy to troubleshoot: Bus topology is easy to troubleshoot as it is simple to identify the point of failure in the network. This makes it a convenient option for networks that need to be maintained and repaired.
5. Suitable for small networks: Bus topology is suitable for small networks, such as a small office or home network, where the number of devices is limited and the network is not heavily used.

1. Using the mouse: To change the width of a column in a spreadsheet worksheet using the mouse, you can place the cursor over the right border of the column heading until it becomes a double-headed arrow. Then, click and drag the border to the left or right to change the width of the column.
2. Using the ribbon: In some spreadsheet software, you can also change the width of a column using the ribbon. You can select the column(s) you want to change, go to the Home tab, and under the Cells group, you will find the option of Format which has Width and Height options, where you can set the desired width value.

1. Repetitive motions: Salome’s job as a data entry clerk likely involves a lot of repetitive motions, such as typing on a keyboard or clicking a mouse. These motions can put a lot of strain on the muscles and joints, leading to aches and pains over time.
2. Poor posture: Salome may be experiencing pain due to poor posture while sitting at her desk. Sitting in the same position for long periods of time, slouching, and hunching over a computer screen can all contribute to poor posture, which can lead to pain in the back, neck, and shoulders.
3. Stress: Salome’s job as a data entry clerk can be stressful and this stress can manifest as aches and pains in the body. Stress can cause tension in the muscles and can lead to headaches, neck and shoulder pain, and back pain.
4. Lack of physical activity: Sitting at a desk for most of the day can lead to a lack of physical activity, which can contribute to body aches and pains. The lack of movement can cause stiffness and soreness in the muscles, and can also affect the circulation of blood, leading to pain in the legs and feet.

Note: These are possible causes of Salome’s pain, it is always recommended to seek medical advice to get an accurate diagnosis and treatment plan.

(i) Real-time: Real-time processing is a mode of data processing in which computer systems are designed to respond to input and process data within a specific, short period of time. The goal of real-time processing is to ensure that the system can handle and respond to data as it is received, with minimal delay. Examples of real-time systems include air traffic control systems, medical equipment, and financial trading systems.

(ii) Time-sharing: Time-sharing is a mode of data processing in which multiple users are able to access and use a single computer system at the same time. The system is able to divide its processing time among the different users, allowing each user to run their own programs or access their own data simultaneously. This is achieved by the use of a scheduler that switches between different users’ processes quickly, giving the impression that each user has the full resources of the computer system at their disposal. Time-sharing systems were popular in the 1960s and 1970s, but have been largely replaced by multi-user and multi-tasking systems.