Computer studies analysis of questions and answers

Describe three functions performed by the processor

12/2/2023

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Describe three functions performed by the processor

Control Unit
Coordinates all processing activities in the processor as well as input, storage and output operations
Arithmetic Logic Unit
Is unit of a processor where all arithmetic and logical operations are carried
Main Memory (primary storage)
Is the type of memory that is directly accessible by the processor (Award Imk for each correct answer)

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State two functions of the Control unit of a computer.

4/1/2021

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State two functions of the Control unit of a computer.

To direct the operations of the internal processor components.
To control the flow of programs and data in and out of main memory.
To read and interpret program instructions.
To control flow of information to and from all the components of the computer.
To control flow of information/data
To determine next instruction to be executed first.
To fetch instructions from devices.
To direct/give/monitor operations of internal processing.
To send control signals to peripherals.

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State the purpose of registers in a computer system

2/1/2021

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(a) State the purpose of registers in a computer system (1mk)

To hold data and instructions temporarily as they are being processed in the CPU ( 2mks)

(b) Name two multi-programming operating systems (2mks)

Windows 9X, Linux, Windows 2000, and Windows NT

State the purpose of registers in a computer system

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Name two types of buses found on the computer motherboard

1/1/2021

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Name two types of buses found on the computer motherboard

Address bus
Data bus/SATA bus/IDE/ATA/ I/O
Control bus

(b) State the purpose of each of the types of buses named in (a) above

Address bus - Memory location/used to locate storage positions/transmit memory locations
Data bus- Data transmission
Control bus- Transmit control signals! transmit instruction signals

Name two types of buses found on the computer motherboard

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Computer systems are built from three types of physical components: processors, memories and I/O Devices.

31/12/2020

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(a) State two tasks of a processor (2mks)

To control the use of main memory to store data & instructions
To control sequence of operations
To give instructions to all parts of the computer system
To carry out processing

(b) State the functions of I/O devices

Input
Used to enter data into the computer in a form the computer can store & process e.g. keyboard, mouse.
Output
Used to display the results of processing e.g. printer, monitor

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The diagram below represents the essential features of a computer system. Study the diagram and answer the questions that follow:

28/12/2020

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(a) The diagram below represents the essential features of a computer system. Study the diagram and answer the questions that follow:

(i) Name the components: (4mks)

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Differentiate between (a) data and information (b) central processing unit and system unit.

19/12/2020

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(a) data and information.

Data can be defined as raw facts that do not have much meaning to the user while information is the processed data that is meaningful to the user.

(b) central processing unit (CPU) and system unit.

The central processing unit (CPU) is the central part of the computer where data processing is done while the system unit is the part that houses the CPU and other internal components.

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Describe three functions performed by the processor

Describe three functions performed by the processor

State two functions of the Control unit of a computer.

State two functions of the Control unit of a computer.

State the purpose of registers in a computer system

(a) State the purpose of registers in a computer system (1mk)

(b) Name two multi-programming operating systems (2mks)

Name two types of buses found on the computer motherboard

Name two types of buses found on the computer motherboard

(b) State the purpose of each of the types of buses named in (a) above

Computer systems are built from three types of physical components: processors, memories and I/O Devices.

(a) State two tasks of a processor (2mks)

(b) State the functions of I/O devices

The diagram below represents the essential features of a computer system. Study the diagram and answer the questions that follow:

(i) Name the components: (4mks)

Differentiate between (a) data and information (b) central processing unit and system unit.

(a) data and information.

(b) central processing unit (CPU) and system unit.

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Describe three functions performed by the processor

​Describe three functions performed by the processor

State two functions of the Control unit of a computer.

State two functions of the Control unit of a computer.

State the purpose of registers in a computer system

​(a) State the purpose of registers in a computer system (1mk)

​(b) Name two multi-programming operating systems (2mks)

Name two types of buses found on the computer motherboard

Name two types of buses found on the computer motherboard

(b) State the purpose of each of the types of buses named in (a) above

Computer systems are built from three types of physical components: processors, memories and I/O Devices.

​(a) State two tasks of a processor (2mks)

​(b) State the functions of I/O devices

The diagram below represents the essential features of a computer system. Study the diagram and answer the questions that follow:

​​(i) Name the components: (4mks)

Differentiate between (a) data and information (b) central processing unit and system unit.

​(a) data and information.

​(b) central processing unit (CPU) and system unit.

Categories

Archives

Describe three functions performed by the processor

(a) State the purpose of registers in a computer system (1mk)

(b) Name two multi-programming operating systems (2mks)

(a) State two tasks of a processor (2mks)

(b) State the functions of I/O devices

(i) Name the components: (4mks)

(a) data and information.

(b) central processing unit (CPU) and system unit.