Describe The Computer Architecture

Define computer architecture

• The structure and behaviour of a computer system as seen by the user

• The arrangement of computer hardware components within a system

• The overall design of a computer system, including hardware and software components and their interactions

• The operational details of the computer system and how the components work together to
  execute programs and perform tasks

Identify the bus component that is used to carries the data being transmitted

• Data Bus

• System Bus

• Control Bus

• Address Bus

Identify why cache memory was implemented in a computer system

• To avoid loss data in memory

• To increase the internal memory of the system

• To speed up the average time to access memory

• To use as a permanent storage location for frequently used data

Identify the CORRECT statement of parity bit in asynchronous communication interface

• The value of the parity bit is always 0

• It is used to validate the integrity of the data

• It is suitable for double bit error detection only

• It is subtracted from a block of data for error detection purposes

Identify the characteristic of Direct Memory Access (DMA) in managing input and output

• The processor keeps on scanning whether any device is ready for data transfer

• The CPU must transfer the data word by word between the I/O module and memory

• Allows a hardware device to access system memory without any help from the CPU

• The transfer of data from an I/O device to the memory will require the CPU to initiate a program

Define the Central Processing Unit

• The CPU is a peripheral device responsible for storing and retrieving data

• The CPU is a type of software program used to manage computer networks

• The CPU is a software program that manages the operation of peripheral devices like printers and scanners

• The CPU is the brain of a computer, containing all the circuitry needed to process input, store data, and output results

Choose the CORRECT function of Control Unit

• Keep track of files for use later

• Producing results from the data for getting useful information

• Supervise the process of input, output, processing and storage

• Manipulate data according to the user’s instructions processing and storage

Based on the statement in Figure 3, match the suitable types of cache memory

• Level 1 Cache Memory

• Level 2 Cache Memory

• Level 3 Cache Memory

• Level 4 Cache Memory

Instruction cycle is the basic operational process of a computer system. Choose the CORRECT order of the instruction cycle

• Fetch, Decode, Execute

• Decode, Fetch, Execute

• Execute, Fetch, Decode

• Execute, Decode, Fetch

Express what the CPU does during the decode step of the instruction cycle

• Executes the instruction

• Transfers data between registers

• Retrieves the next instruction from memory

• Determines what operation needs to be performed