BBA110 - COMPUTER FUNDAMENTALS

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ASSIGNMENT

DRIVE	FALL 2016
PROGRAM	BACHELOR OF BUSINESS ADMINISTRATION (BBA)
SEMESTER	I
SUBJECT CODE & NAME	BBA110 - COMPUTER FUNDAMENTALS
BK ID	B1501
CREDITS	2
MARKS	30

Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Question.1. With a neat diagram explain the architecture of a computer.

Answer:In computer engineering, computer architecture is a set of rules and methods that describe the functionality, organization, and implementation of computer systems. Some definitions of architecture define it as describing the capabilities and programming model of a computer but not a particular implementation. In other definitions computer architecture involves instruction set architecture design, microarchitecture design,

Question.2. a. What is main memory? What are the types of main memory?

Answer:In computing, memory refers to the computer hardware devices used to store information for immediate use in a computer; it is synonymous with the term "primary storage". Computer memory operates at a high speed, for example random-access memory (RAM), as a distinction from storage that provides slow-to-access program and data storage but offers higher capacities. If needed, contents of the computer memory can be transferred to secondary storage, through a memory management technique called "virtual

b. What is secondary memory? Give examples.

Answer:Secondary memory (or secondary storage) is the slowest and cheapest form of memory. It cannot be processed directly by the CPU. It must first be copied into primary storage (also known as RAM).

Secondary memory devices include magnetic disks like hard drives and floppy disks; optical disks such as CDs and CDROMs ; and magnetic tapes, which were the first forms of secondary memory.

Secondary storage is used as a cheaper alternative

Question.3. Write short notes on the following:

a. Decimal Number System

Answer:Decimal number system, also called Hindu-Arabic, or Arabic, number system, in mathematics, positional numeral system employing 10 as the base and requiring 10 different numerals, the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. It also requires a dot (decimal point) to represent decimal fractions. In this scheme, the numerals used in denoting a number take different place values depending upon position. In a base-10 system the number 543.21 represents the sum (5 × 102) +  (4 × 101) + (3 × 100) + (2 × 10−1) + (1 × 10−2). See numerals and numeral systems.

This number system, with its associated arithmetic algorithms, has furnished the basis for the development of Western commerce and science since its introduction to the West in the 12th century ad.

b. Binary Number System

Answer:In mathematics and digital electronics, a binary number is a number expressed in the binary numeral system or base-2 numeral system which represents numeric values using two different symbols: typically 0 (zero) and 1 (one). The base-2 system is a positional notation with a radix of 2. Because of its straightforward implementation in digital electronic circuitry using logic gates, the binary system is used internally by almost all modern computers and computer-based devices. Each digit is referred to as a bit.

c. Octal Number System

Answer:Binary is also easily converted to the octal numeral system, since octal uses a radix of 8, which is a power of two (namely, 23, so it takes exactly three binary digits to represent an octal digit). The correspondence between octal and binary numerals is the same as for the first eight digits of hexadecimal in the table above.

d. Hexadecimal Number System

Answer:Binary may be converted to and from hexadecimal somewhat more easily. This is because the radix of the hexadecimal system (16) is a power of the radix of the binary system (2). More specifically, 16 = 24, so it takes four digits of binary to represent one digit of hexadecimal, as shown in the table to the right.

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