Hemis tasks task 3 score -4 unit III: it support lesson 17 theme

HEMIS TASKS
TASK 3
SCORE -4
UNIT III: IT SUPPORT

LESSON 17


THEME: Fault diagnosis. Understanding faults
Grammar: “Numbers”
APPENDIX 5 READING


1.Read the text and explain what the numbers in the text mean.
COMPUTER IN ENGLISH
A computer is an electric device that is used to perform repetitive calculations at very high speed. The computer acts as a data processing device and also stores large amounts of data.
This data could be text, pictures, voice numbers, photographs and other types of information that are used by humans in their day-to-day operations. Life cannot be imagined without computers.
In fact, the new millennium is the era of computers and its associated techniques, commonly known as Information Technology (IT). Computers help the school children learn new techniques of study, graphic designs, games and other useful educational applications.
They help the college students in preparing reports. They help the office executives in accounts, software development, sale invoicing and manufacturing. They help the libraries in the efficient management of their operations. They run the factories and equipment. They control the satellites and nuclear weapons. They help the young and the old through Internet sites. They are, in fact, indispensable as every operation of human life is incomplete and inefficient without them. As school-going students, we must learn computers. Computers are available in various configurations.
For learning computer operations a computer with 166 MHz speed (Known as the CUP speed), an HDD of 1.2 MB storage capacity and RAM of 32 MB is needed. These elementary computers would help the school students learn LOGO, BASIC, Windows 95 (the operating system in usage nowadays), games, various lectures related to the syllabi and internet operations.
A student would do well to learn the basics of computer operations. In his or her school, he or she can join evening classes for getting advanced level training. Computers are easy to learn and are student-friendly machines.
They improve the efficiency of the student and make him more knowledgeable. They help him or her in his or her education, mental development and entertainment. In the times to come, all the students would either have their own computers or would have free access to them.
Computerisation in banks is complete and most of the factories, offices, colleges and schools have advanced computer systems. The latest professing speed of the computer is 533 MHz but this computer is costly.
A good computer, which would serve the purpose of the student, costs Rs. 30000 only. And this cost would come down in the years to come. Students should adopt computers in their educational teaming and for their mental development.
I think, teacher ,this text is very old why I say that.,because In this text features of computers very low.In our adwanced period this features very high too sample computer this features at least for example CPU=>1.8,HDD=>4gb,and finnaly RAM=>2or 3 RAM(random acces memory)= Random-access memory (RAM; /ræm/) is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.[1][2] A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory, in contrast with other direct-access data storage media (such as hard disks, CD-RWs, DVD-RWs and the older magnetic tapes and drum memory), where the time required to read and write data items varies significantly depending on their physical locations on the recording medium, due to mechanical limitations such as media rotation speeds and arm movement. CPU(central processing unit)=> In computer science, an instruction set architecture (ISA), also called computer architecture, is an abstract model of a computer. A device that executes instructions described by that ISA, such as a central processing unit (CPU), is called an implementation. HDD(hard disk drive)=> A hard disk drive (HDD), hard disk, hard drive, or fixed disk^[ is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces. Data is accessed in a random-access manner, meaning that individual blocks of data can be stored and retrieved in any order. HDDs are a type of non-volatile storage, retaining stored data even when powered off. modern HDDs are typically in the form of a small rectangular box.