IT &computer MCQ section 6 Practice Questions Answers Test with Solutions & More Shortcuts

Answer: (a)

A personal network is a set of human contacts known to an individual, with whom that individual would expect to interact at intervals to support a given set of activities.

Personal networks are intended to be mutually beneficial–extending the concept of teamwork beyond the immediate peer group. The term is usually encountered in the workplace

Answer: (c)

Principal components of a central processing unit (CPU)include the arithmetic logic unit (ALU) that performs arithmetic and logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the fetching (from memory) and execution of instructions by directing the coordinated operations of the ALU, registers and other components.

Answer: (c)

ENIAC- Electronic Numerical Integrator And Computer was the first electronic general-purpose computer. It was Turing-complete, digital, and capable of being reprogrammed to solve “a large class of numerical problems”.

The ENIAC was built between 1943 and 1946 in The Moore School of Engineering, University of Pennsylvania.

Answer: (a)

On 15th July, 2007, HCL InfoSystem Ltd. India’s premier information and the country’s largest PC manufacturer announced the launch of India’s first personal computer with one terabyte hard drive capacity in the market.

Answer: (d)

Data is organized in a data storage hierarchy of increasingly complex levels: bits, bytes (characters), fields, records, files, and databases. Data are logically organized into:

Bits (characters): - a bit is the smallest unit of data representation (0 or 1);

Byte: a unit of digital information that most commonly consists of 8 bits;

Field: a field consists of a grouping of characters;

Record: record consists of fields, with each field describing an attribute of the entity;

File: a group of related records;

Database: an integrated collection of logically related records or files.