Module 2 - MBA 703 (Sadhya) UPDATED ACTUAL Questions
and CORRECT Answers
5 components of an information system 1. Hardware
2. Software
3. Data
4. Procedures
5. People
Examples of hardware desktop computers
laptop computers
mobile phones
tablet computers
e-readers
storage devices, such as flash drives
input devices, such as keyboards, mice, and scanners
output devices such as printers and speakers
Less traditional, but becoming more computerized:
automobiles
refrigerators
beverage dispensers
digital device Devices that processes electronic signals into discrete values, of which there can
be two or more
analog signals continuous and can be represented by a smooth wave pattern
"On" state in digital device binary 1
representing the presence of an electronic signa
, "Off" state in digital device Binary 0
represented by the absence of an electronic signal.
bit A contraction of "Binary Digit". A bit is the single unit of information in a computer,
typically represented as a 0 or 1.
the lowest level of data storage, stored as either a one or a zero.
Byte a group of 8 bits
The highest number that can be sent in a byte is 255, which is 11111111, which is
equal to 2^7 + 2^6 + 2^5 + 2^4 + 2^3 + 2^2 + 2^1 + 2^0.
Word size the number of bits the processor can interpret and execute at a given time
Today's PCs can process 64 bits of data at a time which is where the term 64-bit
processor comes from.
Basic hardware a PC 1. Central Processing Unit (CPU)
2. memory
3. circuit board
4. storage
5. input/output devices
Central Processing Unit (CPU) It can be thought of as the "brains" of the device.
carries out the commands sent to it by the software and returns results to be
acted upon.
Today they are faster and the chips contain multiple processors increasing the
processing power of a computer by providing the capability of multiple CPUs all
sharing the processing load.
two primary manufacturers for PCs: Intel and Advanced Micro Devices (AMD).
The speed ("clock time") of a CPU is expressed in cycles Hertz (one cycle per second)
called____ _.
kilohertz ( kHz) = one thousand cycles per second
megahertz (mHz) = one million cycles per second
gigahertz (gHz) = one billion cycles per second.
Moore's Law The number of integrated circuits on a chip doubles every two years. We are
starting to see the limits of this law just now.
generalized into the concept that computing power will double every two years
for the same price point
OR looking another way
the price for the same computing power will be cut in half every two years
and CORRECT Answers
5 components of an information system 1. Hardware
2. Software
3. Data
4. Procedures
5. People
Examples of hardware desktop computers
laptop computers
mobile phones
tablet computers
e-readers
storage devices, such as flash drives
input devices, such as keyboards, mice, and scanners
output devices such as printers and speakers
Less traditional, but becoming more computerized:
automobiles
refrigerators
beverage dispensers
digital device Devices that processes electronic signals into discrete values, of which there can
be two or more
analog signals continuous and can be represented by a smooth wave pattern
"On" state in digital device binary 1
representing the presence of an electronic signa
, "Off" state in digital device Binary 0
represented by the absence of an electronic signal.
bit A contraction of "Binary Digit". A bit is the single unit of information in a computer,
typically represented as a 0 or 1.
the lowest level of data storage, stored as either a one or a zero.
Byte a group of 8 bits
The highest number that can be sent in a byte is 255, which is 11111111, which is
equal to 2^7 + 2^6 + 2^5 + 2^4 + 2^3 + 2^2 + 2^1 + 2^0.
Word size the number of bits the processor can interpret and execute at a given time
Today's PCs can process 64 bits of data at a time which is where the term 64-bit
processor comes from.
Basic hardware a PC 1. Central Processing Unit (CPU)
2. memory
3. circuit board
4. storage
5. input/output devices
Central Processing Unit (CPU) It can be thought of as the "brains" of the device.
carries out the commands sent to it by the software and returns results to be
acted upon.
Today they are faster and the chips contain multiple processors increasing the
processing power of a computer by providing the capability of multiple CPUs all
sharing the processing load.
two primary manufacturers for PCs: Intel and Advanced Micro Devices (AMD).
The speed ("clock time") of a CPU is expressed in cycles Hertz (one cycle per second)
called____ _.
kilohertz ( kHz) = one thousand cycles per second
megahertz (mHz) = one million cycles per second
gigahertz (gHz) = one billion cycles per second.
Moore's Law The number of integrated circuits on a chip doubles every two years. We are
starting to see the limits of this law just now.
generalized into the concept that computing power will double every two years
for the same price point
OR looking another way
the price for the same computing power will be cut in half every two years
