Questions
- Define the following terms:-
- Computer 2mks
- Data 2mks
- Processing 2mks
- Information 2mks
- State the different physical parts that make up a computer. (4mks)
- Draw and name the parts of a computer. (4mks)
- Classify computers (3mks)
- Why is the computer screen also called monitor? (2mks)
- State and explain 6 characteristics of computers (6mks)
- What is the function of the following;
- Keyboard
- Mouse
- Monitor
Marking Scheme
- Define the following terms:-
- Computer 2mks
- A computer is an electronic device capable of receiving data (input) and performs a sequence of operations (processing) to produce output also known as information
- A computer is an electronic device capable of receiving data (input) and performs a sequence of operations (processing) to produce output also known as information
- Data 2mks
- Data refers to raw facts that are meaningless to the user and cannot be used to make decision.
- Data refers to raw facts that are meaningless to the user and cannot be used to make decision.
- Processing 2mks
- Refer to the way data is manipulated to turn into information. e.g. arithmetic,operations,addition,subtraction.
- Refer to the way data is manipulated to turn into information. e.g. arithmetic,operations,addition,subtraction.
- Information 2mks
- Refers to processed data that is meaningful to the user.
- Refers to processed data that is meaningful to the user.
- Computer 2mks
- State the different physical parts that make up a computer. (4mks)
- System unit/central processing unit (CPU)
- Monitor
- Mouse
- keyboard
- Draw and name the parts of a computer. (4mks)
- Classify computers (3mks)
- Classified according to; functionality, physical size and purpose.
- Classified according to; functionality, physical size and purpose.
- Why is the computer screen also called monitor? (2mks)
- It enables the user to monitor or see what is going on the computer system.
- It enables the user to monitor or see what is going on the computer system.
- State and explain 6 characteristics of computers (6mks)
- Fast- in terms of speed.
- Accurate- has high degree of accuracy, do not make errors.
- Versatile-computers are flexible in the way they are used to carry out different types of activities.
- Reliable-computers are more reliable because they do not get tired or bored in processing repetitive tasks.
- Memory-computers have in-built memory used to store and retrieve large amount of data.
- Diligent-a computer can perform repetitive or routine tasks without getting bored, tired or losing concentration.
- What is the function of the following;
- Keyboard
- Enables the user to enter data and instructions in the computer by pressing keys.
- Mouse
- Is a pointing device that enables the user to execute commands. Used to control an arrow displayed on the screen.
- Monitor
- It is a television-like device used for displaying information from the system unit.
- Keyboard
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