Reading: Topic, Main Idea Lecture No.04 ENG101



Reading: Topic, Main Idea Lecture No.04 ENG101

Exercise - 04 

Perusing: Topic, Main Idea 

Right now will rehearse aptitudes learnt in past exercises. These aptitudes are: 

A. Identifying the subject of each section. 

B. Identifying the principle thought. 

C. Identifying supporting thoughts. 

The given content is about PCs. It comprises of six sections. Peruse the content once through ceaselessly. As you read the content you will go over numerous words and articulations that you are inexperienced with. Try not to be vexed. Continue perusing. In your subsequent perusing, delay after each section and ask yourself - what the passage is about? You will locate that each section has a point, a fundamental or an essential thought and/or auxiliary thoughts that help the primary thought. 

What is a PC? 

1-A PC is a machine with a mind boggling system of electronic circuits that work switches or charge minor metal centers. The switches, similar to the centers, are fit for being in one of two potential expresses, that is, on or off: charged or demagnetized. The machine is fit for putting away and controlling numbers, letters, and characters. The fundamental thought of a PC is that we can cause the machine to do what we need by contributing signs that turn certain switches on and turn others, off, or that charges or de-polarizes the centers. 

2. The fundamental occupation of PCs is the preparing of data. Thus, PCs can be characterized as a gadget which acknowledges data as directions called a program and characters called information, perform scientific and/or sensible procedure on the data, and afterward supply consequences of these tasks. The program, or part of it, which instructs the PCs and furthermore gives the data expected to take care of the issue, is kept inside the PC in a spot called memory. 

3. Computers are thought to have numerous exceptional forces. In any case, the greater part of PCs, regardless of whether enormous or little have three essential abilities. In the first place, PCs have circuits of performing number juggling activities, for example, expansion, subtraction, division, increase and exponentiation. Second, PCs have a methods for speaking with the client. All things considered, in the event that we was unable to take care of data in and get results back, these machines wouldn't be of a lot of utilization. Be that as it may, certain PCs (regularly minicomputers and microcomputers) are utilized to control legitimately things, for example, robots, airplane's route frameworks, clinical instruments, and so on. 

4. Some of the most widely recognized strategies for contributing data are to sue punched cards, attractive tape, circles and terminals. The PC's information gadget (which may be a card peruser, a tape drive or circle drive, contingent upon the medium utilized in putting data) adds the data to the PC. For yielding data, two basic gadgets utilized are a printer which prints the new data on paper, or a CRT show screen which shows the outcomes on a TV-like screen. 

5. Third, PCs have circuits which can decide. The sorts of choices which PC circuits can make are not of the sort: 'Who might win a war between two nations?' or 'Who is the most extravagant individual on the planet?' Unfortunately, the PC can just choose three things, in particular: Is one number not exactly another? Are tow numbers equivalent? Is it accurate to say that one is number more noteworthy than another? 

6. A PC can take care of a progression of issues and make hundreds, even thousands, of legitimate choices without getting worn out or exhausted. It can discover the arrangement of an issue in a small amount of time. A PC can supplant individuals in dull, routine undertakings, yet it has no innovation; it works as per the guidelines given to it and can't practice any significant decisions. There are times when a PC appears to work like a mechanical 'cerebrum', yet its accomplishments are constrained by the psyches of individuals. A PC can't do anything except if an individual guides it and give it the fitting data; yet as electric heartbeats can move at the speed of light, a PC can complete immense quantities of number juggling consistent tasks momentarily. An individual can do everything a PC can do, however as a rule that individual would be dead some time before the activity was done. 

(N. Mullen and P. Dark colored: English for Computer Science; OUP 16-18) 

Section 1: 

A PC is a machine with a multifaceted system of electronic circuits that work switches or polarize minor metal centers. The switches, similar to the centers, are equipped for being in one of two potential expresses, that is, on or off: polarized or demagnetized. The machine is fit for putting away and controlling numbers, letters, and characters. The essential thought of a PC is that we can cause the machine to do what we need by contributing signs that turn certain switches on and turn others, off, or that charges or de-polarizes the centers. 

Theme: A PC is a machine. 

Fundamental Idea: We can cause the machine to do what we need it to do. 

Supporting Idea: Machine is fit for putting away and controlling numbers letters, and characters. 

Section 2: 

The essential employment of PCs is the preparing of data. Thus, PCs can be characterized as a gadget which acknowledges data as guidelines called a program and characters called information, perform numerical and/or sensible procedure on the data, and afterward supply aftereffects of these tasks. The program, or part of it, which guides the PCs and furthermore gives the data expected to tackle the issue, is kept inside the PC in a spot called memory. 

Theme: Processing of data. 

Fundamental Idea: The program, which instructs the PC and stores the data, is called memory. 

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Passage 3: 

PCs are thought to have numerous surprising forces. Be that as it may, the a large portion of PCs, regardless of whether huge or little have three fundamental capacities. In the first place, Computers have circuits of performing number-crunching activities, for example, expansion, subtraction, division, increase and exponentiation. Second, PCs have a methods for speaking with the client. All things considered, in the event that we was unable to take care of data in and get results back, these machines wouldn't be of a lot of utilization. Be that as it may, certain PCs (normally minicomputers and microcomputers) are utilized to control legitimately things, for example, robots, airplane's route frameworks, clinical instruments, and so on. 

Subject: Powers of PCs. 

Primary Idea: Three fundamental abilities of PCs 

Supporting Idea: Computers are utilized to control robots, airplane route frameworks, clinical instruments, and so on. 

Section 4: 

The absolute most basic strategies for contributing data are to sue punched cards, attractive tape, circles and terminals. The PC's information gadget (which may be a card peruser, a tape drive or plate drive, contingent upon the medium utilized in putting data) adds the data to the PC. For yielding data, two normal gadgets utilized are a printer which prints the new data on paper, or a CRT show screen which shows the outcomes on a TV-like screen. 

Theme: Method of contributing data. 

Fundamental Idea: Input and Output gadgets. 

Supporting Idea: Examples of gadgets. 

14 

Passage 5: 

PCs have circuits which can decide. The sorts of choices which PC circuits can make are not of the sort: 'Who might win a war between two nations?' or 'Who is the most extravagant individual on the planet?' Unfortunately, the PC can just choose three things, in particular: Is one number not exactly another? Are tow numbers equivalent? 

Is it accurate to say that one is number more noteworthy than another? 

Theme: Circuits that decide. 

Fundamental Idea: Computer can just settle on coherent choice 

Passage 6: 

A PC can tackle a progression of issues and make hundreds, even thousands, of coherent choices without getting worn out or exhausted. It can discover the arrangement of an issue in a small amount of time. A PC can supplant individuals in dull, routine assignments, however it has no creativity; it works as per the guidelines given to it and can't practice any significant decisions. There are times when a PC appears to work like a mechanical 'cerebrum', yet its accomplishments are restricted by the brains of individuals. A PC can't do anything except if an individual tells it to accomplish something and give it the suitable data; yet as electric heartbeats can move at the speed of light, a PC can complete immense quantities of math intelligent activities immediately. An individual can do everything a PC can do, yet as a rule that individual would be dead some time before the activity was done. 

Theme: Speed at which a PC works 

Fundamental Idea: A PC works as indicated by directions. 

Supporting Idea: Computer tasks are constrained. 

Fundamental thought 

Since you have perused each passage in detail, let us take a gander at the content all in all. 

Peruse the accompanying four explanations and pick the explanation that best communicates the principle thought. 

1. Computers have changed the manner by which numerous sorts of occupations are finished. 

2. Instructions and information must be given to the PC to follow up on. 

3. Computers are machines fit for handling and yielding. 

4. Without PCs, numerous assignments would take any longer to do.



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