Modularity specifies to the division of software into separate modules which are differently named and addressed and are integrated later on in to obtain the completely functional software. It is the only property that allows a program to be intellectually manageable. Single large programs are diffiRead more
Modularity specifies to the division of software into separate modules which are differently named and addressed and are integrated later on in to obtain the completely functional software.
It is the only property that allows a program to be intellectually manageable. Single large programs are difficult to understand and read due to a large number of reference variables, control paths, global variables, etc.
It allows large programs to be written by several or different people
It encourages the creation of commonly used routines to be placed in the library and used by other programs.
It simplifies the overlay procedure of loading a large program into main storage.
It provides more checkpoints to measure progress.
It provides a framework for complete testing, more accessible to test
It produced the well designed and more readable program.
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
To make Port CLower as input port this bit set to 1.
To make Port CLower as output port this bit set to 0.
Bit D1:
To make Port B as input port this bit set to 1.
To make Port B as output port this bit set to 0.
Bit D2:
If this bit set to 0, the port B will operate in mode 0.
If this bit set to 1, the port B will operate in mode 1.
Bit D3:
To make Port CUpper as input port this bit set to 1.
To make Port CUpper as output port this bit set to 0.
Bit D4:
To make Port A as input port this bit set to 1.
To make Port A as output port this bit set to 0.
Bits D5 and D6 :
These two bits mainly used for determining the I/O mode of port A.
for 00, it is m0 mode, for 01, it is m2 mode and 10 or 11, it is m2 mode.
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
To make Port CLower as input port this bit set to 1.
To make Port CLower as output port this bit set to 0.
Bit D1:
To make Port B as input port this bit set to 1.
To make Port B as output port this bit set to 0.
Bit D2:
If this bit set to 0, the port B will operate in mode 0.
If this bit set to 1, the port B will operate in mode 1.
Bit D3:
To make Port CUpper as input port this bit set to 1.
To make Port CUpper as output port this bit set to 0.
Bit D4:
To make Port A as input port this bit set to 1.
To make Port A as output port this bit set to 0.
Bits D5 and D6 :
These two bits mainly used for determining the I/O mode of port A.
for 00, it is m0 mode, for 01, it is m2 mode and 10 or 11, it is m2 mode.
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
To make Port CLower as input port this bit set to 1.
To make Port CLower as output port this bit set to 0.
Bit D1:
To make Port B as input port this bit set to 1.
To make Port B as output port this bit set to 0.
Bit D2:
If this bit set to 0, the port B will operate in mode 0.
If this bit set to 1, the port B will operate in mode 1.
Bit D3:
To make Port CUpper as input port this bit set to 1.
To make Port CUpper as output port this bit set to 0.
Bit D4:
To make Port A as input port this bit set to 1.
To make Port A as output port this bit set to 0.
Bits D5 and D6 :
These two bits mainly used for determining the I/O mode of port A.
for 00, it is m0 mode, for 01, it is m2 mode and 10 or 11, it is m2 mode.
Elaborate the concept of modularity in software development? Why is it needed? What is its strength?
Modularity specifies to the division of software into separate modules which are differently named and addressed and are integrated later on in to obtain the completely functional software. It is the only property that allows a program to be intellectually manageable. Single large programs are diffiRead more
Modularity specifies to the division of software into separate modules which are differently named and addressed and are integrated later on in to obtain the completely functional software.
It is the only property that allows a program to be intellectually manageable. Single large programs are difficult to understand and read due to a large number of reference variables, control paths, global variables, etc.
- It allows large programs to be written by several or different people
- It encourages the creation of commonly used routines to be placed in the library and used by other programs.
- It simplifies the overlay procedure of loading a large program into main storage.
- It provides more checkpoints to measure progress.
- It provides a framework for complete testing, more accessible to test
- It produced the well designed and more readable program.
See lessElaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
Bit D1:
Bit D2:
Bit D3:
Bit D4:
Bits D5 and D6 :
Bit D7:
- 1 for IO mode and 0 for BSR mode
See lessCreate a network to implement Distance Vector routing Protocol using Packet Tracer
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See lessCreate a network to implement Distance Vector routing Protocol using Packet Tracer
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See lessElaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
Bit D1:
Bit D2:
Bit D3:
Bit D4:
Bits D5 and D6 :
Bit D7:
- 1 for IO mode and 0 for BSR mode
See lessElaborate the functioning of following bits of Control Word register of 8255 in IO mode: D0 D1 D2 D3 D4
Bit D0 : To make Port CLower as input port this bit set to 1. To make Port CLower as output port this bit set to 0. Bit D1: To make Port B as input port this bit set to 1. To make Port B as output port this bit set to 0. Bit D2: If this bit set to 0, the port B will operate in mode 0.Read more
Bit D0 :
Bit D1:
Bit D2:
Bit D3:
Bit D4:
Bits D5 and D6 :
Bit D7:
- 1 for IO mode and 0 for BSR mode
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