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Q.1. What is a computer?
कप्यूटर क्या है?
Q.2. What is a bit?
बिट क्या है?
Q.3. What is the use of the MD command?
MD कमांड का क्या उपयोग है?
Q.4. Convert (9) into Excess-3 Code.
(9), को एक्सस -3 कोड में परिवर्तित करे।
Q.5.Give a valid example of URL.
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1- A computer is a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Modern computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. A "complete" computer including the hardware, the operating system (main software), and peripheral equipment required and used for "full" operation can be referred to as a computer system. This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster.Computers are used as control systems for a wide variety of industrial and consumer devices. This includes simple special purpose devices like microwave ovens and remote controls, factory devices such as industrial robots and computer-aided design, and also general purpose devices like personal computers and mobile devices such as smartphones.
Early computers were only conceived as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations. More sophisticated electrical machines did specialized analog calculations in the early 20th century. The first digital electronic calculating machines were developed during World War II. The first semiconductor transistors in the late 1940s were followed by the silicon-based MOSFET (MOS transistor) and monolithic integrated circuit (IC) chip technologies in the late 1950s, leading to the microprocessor and the microcomputer revolution in the 1970s. Conventionally, a modern computer consists of at least one processing element, typically a central processing unit (CPU) in the form of a microprocessor, along with some type of computer memory, typically semiconductor memory chips. The processing element carries out arithmetic and logical operations, and a sequencing and control unit can change the order of operations in response to stored information. Peripheral devices include input devices (keyboards, mice, joystick, etc.), output devices (monitor screens, printers, etc.), and input/output devices that perform both functions (e.g., the 2000s-era touchscreen). Peripheral devices allow information to be retrieved from an external source and they enable the result of operations to be saved and retrieved is called a computer.
2 Ans ...
A bit is most basic unit of information in computing.
It is short for binary digit, which means that it can only have one of two values, 0 or 1.
Large denominations of computer memory are composed of bits, moving up through bytes, kilobytes, megabytes, gigabytes and terabytes.
Bits are usually grouped into bit multiples called bytes to store data and execute instructions. A group of eight bits is usually defined as a byte, while four bits is called a nibble.
With quantum computing, bits may be replaced with quits. These can be in a much higher number of states, including one, zero, or a number of superpositions of these states.
The term bit rate is used in telecoms to describe how quickly bits are transmitted, defined according to a given time period such as a second is called a bit.
3
Q.4Ans..
The excess-3 code (or XS3) is a non-weighted code used to express code used to express decimal numbers. It is a self-complementary binary coded decimal (BCD) code and numerical system which has biased representation. It is particularly significant for arithmetic operations as it overcomes shortcoming. Excess-3 arithmetic uses different algorithm than normal non-biased BCD or binary positional number system.
Representation of Excess-3 Code
Excess-3 codes are unweighted and can be obtained by adding 3 to each decimal digit then it can be represented by using 4 bit binary number for each digit. An Excess-3 equivalent of a given binary binary number is obtained using the following steps:
Find the decimal equivalent of the given binary number.
Add +3 to each digit of decimal number.
Convert the newly obtained decimal number back to binary number to get required excess-3 equivalent.
You can add 0011 to each four-bit group in binary coded decimal number (BCD) to get desired excess-3 equivalent.
Q5.answer....
URLs (Uniform Resource Locators) or Resource Locators are unique addresses used to locate a Web page and its contents on a network serve.These addresses are written in the address bar of the browser so that it sends a request through the network and as a culmination of the process, it is possible to visualizes in personal computers the content of a site hosted on a remote server.
NOTE:
URLs allow you to locate any type of resources on any Internet computer. It is used primarily in browsers. It combines the name of the computer that provides the information, the directory where it is located, the name of the file and the protocol to be used to recover the data.
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