6.1.1 Identify the resources that need to be managed within a computer
Primary storage also known as main storage is an area where data is stored for
quick retrieval by the CPU. Random Access Memory (RAM) is an exam
Roles of operating system
Providing user interface
Managing file and folders
Managing the memory
Managing the processor
Managing the Peripherals devices
When you launch a program the OS must do the following
It must find the application on the storage dev
Electric current(I) is the rate of flow of charge, defined by:
Current = Charge flowing past a point/time
I = different of q/different of t
measured in Ampere(A)
IA = 1 C s-1, IA in a metallic conductor means 6.25 x 10 18 electrons passing a point per sec
Last in First out
In stack there are many algorithms such as:
pop decrements and push increments and peek just give the top value
the top variable will be -1 when the stack is empty. When you add a item it
Points in a standing wave where the displacement is zero are called nodes. Midway between the nodes,
the amplitude is at its maximum, there positions are called antinodes.
3rd harmonic wave = = 2l/3 , f = 3f0 and so on
The frequency of the
Computer language may refer to as Programming language, a formal language designed to
communicate instructions to a machine, particularly a computer.
a natural language is any language that has evolved naturally in humans through use and
Centripetal acceleration and centripetal force
When an object moving in a circle changes to a faster speed ,v, or smaller radius ,r, the centripetal
acceleration and force needs to be larger.
Because the speed in a circle equals to the circumferenc
Friday, March 18, 2016
To separate liquids that has a difference in their boiling points.
November 6, 2015
Aim: To discover onionskin cells under a microscope. To map
the cells of the onionskin.
3. We used tweez
Name: Kendall Mathew
Date: 5, December 2015
Teacher: Mrs. Divya
To identify the nutrients in each of the food samples we are
To tell if starch is in the food samples testing it using iodine
solution, to tell
Name: Clarosana Mathew
Date: 4- December -15
Teacher: Mrs. Divya
To identify which foods contain either starch, glucose, protein, or fats.
Starch is can be detected by using iodine solut
Acids and Bases
Monday, March 20, 2016
To use litmus paper as a pH indicator to test common household liquids and determine
their pH levels.
That acidic substances would turn red with the pH test and th
Water is the basic element of nature. It covers 70% of the earths
surface. It provides life, eases out heat, drains harmful
substances and mediates many day-to-day works. Water needs to
be replenished, purified and circulated again and again s
Natural soap products is better than factory soap, due to the fact that some
synthetic chemicals in factory soap have been proven to be harmful to human
health. Soaps are general personal hygiene and general cleaning products
and they can either
Mixing lye and water with fats or oil makes soap. Through a complex
chemical reaction lye which is also called sodium hydroxide converts Fats or Oil to
soap. This process is called saponification.
Soap cleans by acting as an agent between water and dirt.