How does a instruction register work?
This register holds the current instruction so that it can be decoded and input to the control and timing unit. Specifically, the instruction register holds the opcode which defines the type of instruction.
What is register to register instruction?
A. have both their operands in the main store. which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also. C.
Why instruction register is 16 bit?
IR (Instruction Register, 16 bits) holds the instruction code of the instruction currently executing. Outputs of this register are hardwired to specific logic in the control unit, which interprets the bits to generate control signals. AR (Address Register, 12 bits) is used to interface with the memory unit.
Which is 16-bit register?
16-bit microcomputers are computers in which 16-bit microprocessors were the norm. A 16-bit register can store 216 different values. The range of integer values that can be stored in 16 bits depends on the integer representation used.
What are the negative impacts of agriculture?
Agricultural practices may also have negative impacts on water quality. Improper agricultural methods may elevate concentrations of nutrients, fecal coliforms, and sediment loads. Increased nutrient loading from animal waste can lead to eutrophication of water bodies which may eventually damage aquatic ecosystems.
What are some problems caused by farming?
Agriculture contributes to a number larger of environmental issues that cause environmental degradation including: climate change, deforestation, biodiversity loss, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
What is the biggest problem facing agriculture today?
The following five challenges to the future of agriculture and food security exist on almost every continent in one form or another: constraints on resources from fossil fuel to water to phosphorus; land management problems resulting from tillage to monoculture to improper grazing practices; food waste from spoilage to …
What is the biggest challenge facing agriculture today?
Farmers need to deal with many problems, including how to: Cope with climate change, soil erosion and biodiversity loss. Satisfy consumers’ changing tastes and expectations. Meet rising demand for more food of higher quality.
What is monocropping and why is it bad?
Monocropping is the practice of growing the same crop on the same plot of land, year after year. This practice depletes the soil of nutrients (making the soil less productive over time), reduces organic matter in soil and can cause significant erosion.
What are the pros and cons of monocropping?
Advantages and Disadvantages of Monoculture Farming
- Specialized production.
- Technological advances.
- High efficiency.
- Greater yields of some produce.
- Simpler to manage.
- Higher earnings.
- Pest problems.
- Pesticide resistance.
What are the negative effects of monoculture?
Disadvantages of Monoculture Farming
- Damage to soil quality.
- Increased use of Fertilizers.
- Susceptibility to Pests.
- Increased use of Pesticides and herbicides.
- Damage to the Environment.
- Loss of Biodiversity.
- Increased Susceptibility to diseases.
- Actually lower yields.