1. INTRODUCTION TO COMPUTER NETWORK (16 Marks)
Meaning of Computer Network
A computer network is a collection of two or more computers and devices connected together to share data, resources, and information using communication links.
Definition
A computer network is an arrangement of hardware and software that allows devices to communicate and exchange data.
Components of a Network
1. Sender – Device that sends data
2. Receiver – Device that receives data
3. Transmission medium – Path for...
## Economic Principles Overview:
### 1. Opportunity Cost:
- *Definition*: The value of the next best alternative foregone when making a decision.
- *Example*: If you spend ₹100 on a movie ticket, the opportunity cost is what else you could have bought with that ₹100.
### 2. Marginal Principle:
- *Definition*: Decisions are made based on the additional (marginal) benefits and costs of an action.
- *Example*: Produce more units of a product until marginal revenue equals marginal cost.
### 3. Incremental
Q1:
An example of a third class lever is knee extension (like kicking a ball), where the force is between the fulcrum and load. The knee joint is the fulcrum (pivot point where the lower leg rotates), the quadriceps tendon inserting on the tibial tuberosity provides the effort in the middle, and the leg and foot (plus any ball) form the load at the far end.
Q2:
Gymnasts bend their knees and flex their hips when they land so their legs act like shock absorbers, increasing the time over which
Aristotle is called the father of political science because he studied politics through observation and practical reasoning. He believed that humans are political beings who can achieve their highest moral and intellectual development only within the state, whose purpose is to promote the good life. His justification of slavery was based on the idea of natural slavery, where some people lacked rational capacity and therefore benefited from being ruled, reflecting Greek social conditions. Aristotle’s
...Direct Materials and Labor: Materials price variance = (AP - SP) x AQ \\ Materials Quantity Variance = (AQ - SQ) x SP \\ Materials Spending Variance MPV + MQV \\ Labor Rate Variance = (AR-SR) x AH \\ Labor Efficiency Variance = (AH - SH) x SR \\ Labor Spending Variance = LRV + LEV \\
Standard Hours and Cost: Standard Hours Allowed = standard hours per unit x actual output \\ standard cost allowed = SQ x SP or SH x SR
Variable and Fixed Overhead: VOH Spending Variance = AVOH - (AH x SR)
...Female (Ovary – Germarium):
In the Drosophila ovary, 2–3 germline stem cells (GSCs) are located at the anterior tip of the germarium. They physically attach to cap cells using E-cadherin–mediated adhesion. Cap cells act as the niche, producing key signals such as Dpp, Gbb, Hedgehog, and Piwi to maintain GSC self-renewal.
When a GSC divides, it undergoes asymmetric division: one daughter remains attached to cap cells and stays a stem cell, while the other daughter moves away from the niche
1Seaweeds: Seawoods are commonly eaten in Asia but are still underused in Westem countries. Interest in seaweed is increasing, and they may become important ingredients in Europe because they are nutritious and sustainable. 2.The Domesday Book: The Domesday Book was written in 1088 for William the Conqueror. It recorded who owned land in England and how much it was worth, so the king could calculate taxes. It is extremely important because it gives detailed information about medieval society. Its
Price Discrimination under Monopolistic Competition
Price discrimination means selling the same product at different prices to different buyers at the same time, even though the cost of production is the same.
Example:
A salon charging different prices for the same haircut for men, women, or children.
Why Price Discrimination Can Occur Under Monopolistic Competition
Although perfect monopolists generally practise price discrimination, monopolistic competitors can also do
lim x->0 sinx/x = 1 | H.A.: compare degrees | V.A.: denom = 0 | Continuous if: f(a), lim, equal
DERIVATIVES: (x^n)'=nx^(n-1), (e^x)'=e^x, (a^x)'=a^x ln a, (lnx)'=1/x | (uv)'=u'v+uv', (u/v)'=(u'v-uv')/v^2 |chain: (f(g(x)))'=f'(g(x))g'(x)
TRIG DERIVATIVES: (sin)'=cos, (cos)'=-sin, (tan)'=sec^2 | (sec)'=sec·tan, (csc)'=-csc·cot, (cot)'=-csc^2
CRITICAL POINTS:f'=0 or DNE ⇒ crit pt | f'>0 inc | f'<0 dec | f''>0 conc up | f''<0 conc down | inflec = f'' signchange
INTEGRATION: ∫x^