ECAT Computer Science MCQ's Test For Full Book With Answers

ECAT Computer Science MCQ's Test For Full Book

Sr. # Questions Answers Choice
1 The number of bytes in the following number (1111, 1011, 0111,0100,1010) is. 5 2 1/2 10 1 2/4
2 Memory capacity may be expressed in. microseconds kilobytes bits cycles
3 Another name for a logic chip is. PROM memory microprocessor ROM
4 Computer operations are synchronized by. the CPU clock megabytes the binary system E-time
5 The unit that transforms data into information is the. CPU ROM DVD OCR
6 The heart of a digital computer is. control unit memory unit logic unit visual display unit
7 During E-time the ALU. examines the instruction enters the instruction executes the instruction elicits the instruction
8 The entire computer system is coordinated by. the ALU the accumulator the control unit arithmetic operators
9 The central processing Unit (CPU) comprises of. memory, VDU , and printer input device , output device and memory store , arithmetic and logic unit and control unit software, hardware and power supply unit
10 A CPU has. control unity consisting of program counter and instruction decoder, and arithmetic unit having accumulator bubble memory visual display unit auxiliary storage unit
11 Historically, the first computers were used for. text processing data storage simulation and modeling arithmetic calculations
12 Charles Babbage worked closely with ______ to develop his device. Ada Lovelace Joseph-Marie Charles Herman Hollerith Jacquard Lord Byron
13 Charles Babbage set out to create a device that could carry out any calculation to twenty digits of accuracy called a(n):. computer analytical engine calculator mainframe
14 Which is not a professional computer job? system analyst programmer user data entry operator
15 Programs written to cause computers to function in a desired way are called. hardware instruction software algorithm
16 Arranging classified data in a predetermined sequence to facilitate processing is called. storing sorting processing classifying
17 The concurrent processing of computer program via terminals on one computer system is an example of. real time processing time-sharing Interactive processing all of the above
18 computers that deal with discrete data are called. discrete computers digital computers analog computers micro computers
19 Who developed the first automatic electronic digital computer prototype between 1935 and 1942. John Atanasoff J. Presper Eckert William Shockley Thomas J.Watson
20 Who is pioneer in the field of computer language who played an important role in the development of COBOL. Grace M.Hopper How H.Aiken John von Neumann Thomas J.Watson
21 Who is responsible for introducing the concept of stored program. Blaise Pascal Herman Hollerith Charles Babbage John von Neumann
22 A microprocessor has memory location from 0000 to 3FFF, each storing one byte. The number of bytes, the memory can stored is. 8,192 16,384 32,768 4,096
23 The differential equations are solved by. analog computers digital computers differential machine both analog and digital computers
24 A physical system can be modeled by a set of. Boolean equations logic equations differential equations linear algebraic equations
25 Time scaling in analog computers is done to make them. operate fast operate slowly operate in time delay mode either operate fast or operate slowly
26 The main advantage of analog computers compared to digital computers is that they are more. efficient in continuous calculations such as differentiation and integration efficient in handling vast data accurate and precise reliable
27 IBM-1401, CDC-6600, IBM-7030 etc. belong to the. first generation computers second generation computers third generation computers fourth generation computers
28 PDP-5,PDP-8,IBM-360 series and IBM-370 series belong to the. first generation computers second generation computers third generation computers fourth generation computers
29 An analog computer produces its results in the form of. numbers codes of '0's and '1's log format graphs
30 Pick up the wrong statement in the analogy of mechanical and electrical devices. resistance is analog of damping inductance is analog of mass capacitance is analog of spring charge is analog of displacement
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