The Tech Storror

Ways to prevent and spread viruses | Protecting the computer from virus attacks will end up being more than just removing the virus from the computer. Ways to protect computers from viruses are mentioned-- (i) Virus-free CDs, discs, etc. used on other computers before using them on own computer. (ii) To make the software virus free before using the software copied from the computer on one's own computer. (iii) Before using any file from another computer on your own computer, disinfect the CD or CD on which the file is supplied. (iv) Be careful when downloading (installing) any software from the Internet to your computer. (v) Not to copy and use software used on other computers. (vi) Keeping antivirus software on the computer at all times (vii) Always use the latest version of antivirus software available in the market: (vii) back up the daily entered data or files on a separate disc or CD; (ix) exercise caution in e-mail exchanges; (x) Setting up an antivirus guard in the computer

-- Describe main memory of computer. Computer main memory can be divided into two categories based on data storage and retrieval, namely: 1 RAM (Random Access Memory) 2 ROM (Read Only Memory) RAM: The memory directly connected to the motherboard that can be read and written is called RAM. This memory is a temporary memory. Data is stored in RAM as long as the computer has power. RAM erases all its data as soon as the power supply is turned off. Hence it is called as temporary memory. This memory is activated as soon as the computer is turned on. After the computer is turned on, data received from the receiver is stored in this memory. It is semiconductor and direct access memory. Usually running programs and repeatedly changing information and data are stored in memory. ROM: This part of main memory is permanent, non-volatile and non-destructive. Some programs are inserted into this memory when the computer is manufactured. Even turning off the computer does not delete any information

Computers are classified based on two main characteristics. (1) Computers can be divided into three categories based on the type and nature of work (A) Analog computer (Analog computer), (B) Digital computer (Digital computer). (C) Hybrid computer (Hybrid computer). (2) Digital computers can be divided into four categories based on size and capabilities: (A) Supercomputer, (B) Mainframe Computer, (C) Mini Computer, (D) Microcomputer (Micro Computer). Digital Computer : The word digital is derived from the word Digit. In digital computers, letters, numbers, signals, symbols, etc. are used as input. Digital computers perform all kinds of processing operations using two binary digits - 0 (zero) and 1 (one). Digital computers can provide very precise and accurate results. Analog Computer : The word Analog comes from the English word Analogy. The word anal means similarity. Analog computers operate by measuring electrical waves generated by variable data such as pressure, heat, fluid flow,

Describe the classification of computer software System software is the type of software that helps make the computer hardware usable by the user. This software maintains the coordination of work between the BV units of the computer and efficiently utilizes the computer's capabilities for executing practical programs. System software is developed to suit the nature of computer work. So there are different types of system software for different types of work. Software designed for one type of computer cannot be used on another type of computer unless modified. System software can be mainly divided into three categories, namely -- (i) System management programs or software (ii) System Support Programs or Software (iii) System development programs or software. System Management Software: System management software can be used to manage computer hardware, software, data, and network. The System Management Program consists of the following units, namely-- (i) Operating System (ii) Data

Briefly describe the different generations of computers The history of computer evolution can be divided into several stages. Each step is called a generation of the computer. There is some disagreement about the computer's population structure. Below is a brief discussion about the various generations. First Generation (1937-58) : The period from 1937 to 1958 is called the first generation. In 1946, two professors at the University of Pennsylvania created a computer named ENIAC (Electronic Numerical Integrator And Calculator). EDSAC (Electronic Delay Storage Automatic Computer) was invented in 1949. In 1951, Remington Rand created a company name computer. A vacuum tube is used in this computer. The UNIVAC-I is considered to be the first commercially produced digital computer. Characteristics of first-generation computers: (i) large in size and volume, (ii) relatively slow processing capacity, (iii) Use of magnetic drum in the electronic circuit as memory, (iv) Use of vacuum tubes,

Discuss the versatile uses of computers In today's era, the use of computer is so widespread that its use is not limited to certain fields. From daily life to data processing, business, management, publishing, education, research, medicine, communication, industry, entertainment, culture, computers are widely used in all areas of society. For example: (i) Use of computers in daily life: Use of computers is becoming increasingly essential in people's daily life. Keeping account of bank transactions, checking customer's specimen signatures, making patient diagnosis and prescriptions in hospitals, writing letters, listening to music, viewing pictures, communicating with relatives abroad etc. are done with the help of computers. (ii) Use of computers in industries: Computers are being used in industries for data collection, product quality control, temperature, pressure and temperature control and power load control. (iii) Use of computers in the field of medicine: Computers ar