54. Suppose someone writes a program to find the perfect solution to a problem,
ID: 641223 • Letter: 5
Question
54. Suppose someone writes a program to find the perfect solution to a problem, but it will take 150 years to run. We say that this particular solution is:
A) computationally infeasible
B) an infinite loop
C) computationally tenable
D) NP complete
55. We study computer ___________ to become familiar with how circuits and signals collaborate to create working computer systems.
A) architecture B) organization
C) layers
D) programming
56. Computer ______________ concerns itself with instruction sets and formats, operation codes, data types, the number and types of registers, addressing modes, main memory access methods, and various I/O mechanisms.
A) layers
B) architecture
C) organization
D) programming
57. The ________ is the agreed-upon interface between all the software that runs on the machine and the hardware that executes it. It allows you to talk to the machine.
A) hardware protocol
B) software protocol
C) machine control architecture
D) instruction set architecture
58. There are ____________ megabytes in a terabyte.
A) 210 B) 220
C) 230 D) 240
59. There are ____________ kilobytes in an exabyte.
A) 220 B) 230
C) 240 D) 250
60. Clock speeds in today's microprocessors are measured in ________ .
A) kilohertz
B) megahertz
C) gigahertz
D) terahertz
61. Many desktop computers utilize the ___________ bus standard in which the system augments its main bus with dedicated I/O buses using expansion slots.
A) enhanced integrated bus
B) serial advanced technology attachment
C) universal serial bus
D) peripheral component interconnect
62. __________ allow movement of data to and from devices external to the computer.
A) ports B) system buses C) monitors D) scanners
63. The organization that sets standards for computer components, signaling protocols, and data representation is the:
A) ISO B) IEEE C) CCITT D) ANSI
64. The organization that sets standards for photographic film and the pitch of screw threads, in addition to matters concerning computers, is the:
A) ISO B) IEEE C) CCITT D) ANSI
65. The mechanical computer that included mechanisms that provided memory and an arithmetic processing unit was the:
A) Pascaline B) Difference Engine
C) Atanasoff-Berry Computer D) von Neumann calculator
66. The first completely electronic computer was the ______________ .
A) ENIAC B) Analytical Engine
C) Atanasoff-Berry Computer D) DEC PDP-1
67. The first general-purpose programmable electronic computer was the ______________ .
A) ENIAC B) IBM 650 C) Atanasoff-Berry computer
D) DEC PDP-1
68. The ENIAC was originally built in order to speed up calculations for ___________ .
A) systems of linear equations B) weather forecasting
C) ballistics tables D) chess playing
69. In 1948 John Bardeen, Walter Brattain, and William Shockley invented the _________.
A) ENIAC
B) vacuum tube
C) electronic valve
D) transistor
Explanation / Answer
54.
Suppose someone writes a program to find the perfect solution to a problem, but it will take 150 years to run. We say that this particular solution is NP complete.
Hence, the correct answer is D.
55.
Computer organization is a study of how circuits and signals collaborate to create working computer systems.
Hence, the correct answer is B.
56.
Computer architecture concerns itself with instruction sets and formats, operation codes, data types, the number and types of registers, addressing modes, main memory access methods, and various I/O mechanisms.
Hence, the correct answer is B.
57.
The instruction set architecture is the agreed-upon interface between all the software that runs on the machine and the hardware that executes it. It allows you to talk to the machine.
Hence, the correct answer is D.
58.
There are 220 megabytes in a terabyte.
1 megabyte = 2^20
1 terabyte=2^40
So 220 megabytes=1 terabyte.
Hence, the correct answer is B.
59.
There are 250 kilobytes in an exabyte.
1 kilobyte= 2^10
1 exabyte=2^60
So 250 kilobytes =1 exabyte.
Hence, the correct answer is D.
60.
Clock speeds in today's microprocessors are measured in megahertz or gigahertz.
Hence, the correct answer is B and C.
61.
Many desktop computers utilize the peripheral component interconnect bus standard in which the system augments its main bus with dedicated I/O buses using expansion slots.
Hence, the correct answer is D.
62.
ports allow movement of data to and from devices external to the computer.
Hence, the correct answer is A.
63.
The organization that sets standards for computer components, signalling protocols, and data representation is the IEEE.
Hence, the correct answer is B.
64.
The organization that sets standards for photographic film and the pitch of screw threads, in addition to matters concerning computers, is the CCITT.
Hence, the correct answer is C.
65.
Difference Engine was the mechanical computer that included mechanisms that provided memory and an arithmetic processing unit.
Hence, the correct answer is B.
66.
Atanasoff-Berry Computer is the first completely electronic computer.
Hence, the correct answer is C.
67.
Electronic Numerical Integrator and Computer (ENIAC) is the first general purpose programmable electronic computer.
Hence, the correct answer is A.
68.
To speed up calculations for ballistics tables, the ENIAC was built.
Hence, the correct answer is C.
69.
Transistor was invented by John Bardeen, Walter Houser Brattain, and William Shockley.
Hence, the correct answer is D.
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