MANG QUIZ 7
RAM stands for___________ access memory.
Random
The read-write head of a hard drive ________________________ surface of the hard drive. a. points a laser beam at the b. none of the other choices c. is etched on the d. touches the
none of the other choices
A ________________ is a program that can translate code written in some other language into machine code for the CPU.
compiler
Data is read/written to main memory faster than to auxiliary memory. True False
True
Data is read/written to main memory faster than to auxiliary memory. True False
True
Extended ASCII coding uses 8 bits to represent letters and other characters. True False
True
Java is a programming language developed for the net, with a write once-run anywhere philosophy True False
True
Multi-core processors are useful in complex tasks, required for parallel processing, such as speech recognition and video editing. True False
True
Tapes, like hard disks, use magnetic storage, which makes them sensitive to strong electrical/magnetic fields (EMF). Optical storage is not affected by EMF. True False
True
The CPU can instantaneously access any part of main memory. True False
True
The OS provides a layer of abstraction between the CPU and the program used on the machine. This simplifies writing programs, since they can be written for the OS, and the OS will make the conversions for each specific type of CPU. True False
True
The OS provides a layer of abstraction between the CPU and the program used on the machine. This simplifies writing programs, since they can be written for the OS, and the OS will make the conversions for each specific type of CPU. True False
True
The type of RAM used in computers is called dynamic RAM (DRAM) and the dynamic nature of the device means that an electrical charge must be constantly supplied to the device to hold its data. True False
True
UNIX is an operating system. True False
True
Among the most well-known versions of the _________ operating system are the popular open-source OS, Linux, and Apple's desktop/laptop OS, OS/X.
UNIX
Your business need to store 10 Terabytes of data on a backup device. The backup is not likely to be accessed unless there is a legal requirement. The recommended storage device is ___________. a. Tape b. DRAM c. none of the other choices d. Hard drive e. EPROM
a. Tape
Computer hardware has seen a rapid improvement in performance accompanied by a steady decline in prices over the past five decades. This progress has been documented in Moore's law. Because of this ongoing improvement, the share of hardware, in the investment required for a business information system, has ________ over time. a. decreased b. remained unchanged c. increased d. none of the other choices
a. decreased
A program compares the value of current inventory (500 units) with the re-order point (750 units) and places a new inventory order if the current inventory is below the re-order point. This comparison is performed in the ________________. a. none of the other choices. b. ALU of the CPU c. CU of the CPU d. auxiliary memory e. main memory
b. ALU of the CPU
Your business needs to store a Terabyte of data on a backup device. The backup will be retrieved about a dozen times in a year. The recommended storage device is ___________. a. EPROM b. Hard drive c. DRAM chip d. none of the other choices e. Tape
b. Hard drive
Computer hardware has seen a rapid improvement in performance accompanied by a steady decline in prices over the past five decades. This progress has been documented in Moore's law. Because of this ongoing improvement, the share of hardware, in the investment required for a business information system, has ________ over time. a. remained unchanged b. decreased c. none of the other choices d. increased
b. decreased
The read-write head of a hard drive ________________________ surface of the hard drive. a. points a laser beam at the b. none of the other choices c. is etched on the d. touches the
b. none of the other choices
BIOS stands for___________input-output system and are read when the computer is started.
basic
Two numbers are added to get a result. The addition operation is performed by the ____________. a. main memory b. CU of the CPU c. ALU of the CPU d. none of the other choices. e. auxiliary memory
c. ALU of the CPU
The ________________ is the brain of the computer. a. ROM b. none of the other choices c. CPU d. Main memory (RAM) e. BIOS
c. CPU
The BIOS are stored in _________________. a. Auxiliary memory like a hard disk b. RAM (main memory) c. Read only memory (often EPROMs or E-EPROMs) d. Operating System e. none of the other choices
c. Read only memory (often EPROMs or E-EPROMs)
The BIOS are stored in _________________. a. Operating System b. RAM (main memory) c. Read only memory (often EPROMs or E-EPROMs) d. Auxiliary memory like a hard disk e. none of the other choices
c. Read only memory (often EPROMs or E-EPROMs)
A trading partner agreement for a shipment has text in two languages, English and Chinese. The ________ coding standard can be used to digitize this document. a. Machine Language b. ASCII c. Unicode (UTF-16) d. Extended ASCII e. None of the other choices.
c. Unicode (UTF-16)
A computer has a DRAM with a capacity of 8 GB. If there is a power loss to the DRAM device for just one second, the data _____________________. a. is not lost because a DRAM does not need electrical power to retain data b. in the DRAM is lost temporarily but can be recovered with some effort when power is restored. c. in the DRAM is lost for ever. d. in the DRAM is lost temporarily but will be automatically recovered when power is restored. e. none of the other choices.
c. in the DRAM is lost for ever.
CPU manufacturing technology (in 2016) has advanced to the point at which nearly ___________ million transistors can be etched on the area about the size of head of a pin.
30
CPU manufacturing technology (in 2016) has advanced to the point at which nearly ___________ million transistors can be etched on the area about the size of head of a pin.
30
The clock speed of a CPU is expressed in _________________. a. Hertz b. registers c. none of the other choices d. bits per second e. bytes per second
A. Hertz
Storage device A has a capacity of 1000 TB. Storage device B has a capacity of 1 Peta Byte. Select one: a. The two devices have the same storage capacity b. Device B has a smaller storage capacity than Device A c. Device A has a smaller storage capacity than Device B
A. The two devices have the same storage capacity
One part of the CPU, the ALU performs ___________ and logical calculations.
Arithmetic
A mnemonic ADD is used for a 32 bit sequence of 1's and 0's instruction to the CPU. This is used in _____________ language. a. Machine b. ASCII c. none of the other choices d. binary e. assembly
Assembly
Hard drives store data using _________________. a. electrical charges on the devices etched on the drive surface. b. magnetic fields on the magnetic material coated on the drive surface. c. capacitive charges on the devices etched on the drive surface. d. none of the other choices
B. magnetic fields on the magnetic material coated on the drive surface
BIOS stands for ____________ input-output system and are read when the computer is started.
Basic
BIOS stands for _____________ input-output system and are read when the computer is started.
Basic
The approach used by Java is to split the compilation into two steps. The source code for an application is written by the coder and is translated into a compact format called __________ . The machine has a Java Virtual Machine (JVM), a compiler that reads this code and quickly converts it into compiled machine code.
Bytecode
The approach used by Java is to split the compilation into two steps. The source code for an application is written by the coder and is translated into a compact format called ____________ . The machine has a Java Virtual Machine (JVM), a compiler that reads this code and quickly converts it into compiled machine code.
Bytecode
_____________, is a procedural programming language that is very widely used in business code development. It has been the lingua franca of business computing, and one estimate puts the total code in this computer language worldwide at over 200 billion lines
COBOL
A laptop is advertised as having an Intel i7 CPU. CPU stands for __________ processing unit.
Central
A ____________ is a program that can translate code written in some other language into machine code for the CPU.
Compiler
At present (2016) leading edge computers have CPUs with 8 bit architectures. True False
False
COBOL language coders need to be aware of the registers, ALU, and control unit features of the CPU. True False
False
Corporate data centers have thousands of desktop machines stacked in closely packed racks. True False
False
Due to the changes in performance to price ratio of hardware, described by Moore's law a business manager needs to spend more time on the hardware decision for IT. True False
False
The WIMP(Windows, Icons, Menus, Pointers) interface is very suitable for portable devices such as smartphones. True False
False
The silicon in sand is purified in multiple steps to obtain very high purity silicon, typically with around one part per thousand of impurities. True False
False
When a computer is turned off (powered down completely) the CPU retains all the instructions to run the system. True False
False
__________ generation languages move away from specifying procedural steps to specifying broad action classes. One example such a language is SQL (structured query language).
Fourth
___________ generation languages move away from specifying procedural steps to specifying broad action classes. One example such a language is SQL (structured query language).
Fourth
______________ generation languages move away from specifying procedural steps to specifying broad action classes. One example such a language is SQL (structured query language).
Fourth
The term ___________ refers to the circuit board on which all the components of a computer are mounted/connected.
Motherboard
The term ___________ refers to the circuit board on which all the components of a computer are mounted/connected.
Motherboard
The CPU often has _________, which are small data storage locations used to hold intermediate values in computations.
Register
The CPU often has __________ which are small data storage locations used to hold intermediate values in computations.
Register
The CPU often has __________, which are small data storage locations used to hold intermediate values in computations.
Register
The production process (2016) for a computer process begins with __________ (material used).
Sand
_________ are machines designed for use in a corporate data center and contain only the essential components. They are designed for continuous 24 by 7 use and high reliability. Servers
Server
____________ are machines designed for use in a corporate data center and contain only the essential components. They are designed for continuous 24 by 7 use and high reliability. Servers
Server
The code written in a higher-level language is called the _________ code, while the machine code is called the object code.
Source
The code written in a higher-level language is called the ____________ code, while the machine code is called the object code.
Source
Your business need to store 10 Terabytes of data on a backup device. The backup is not likely to be accessed unless there is a legal requirement. The recommended storage device is ___________. a. Hard drive b. DRAM c. none of the other choices d. Tape e. EPROM
Tape
The tracks on the surface of a hard drive are __________________. a. are pathways to carry data in parallel b. are rectangular, with small squares for each data segment c. are etched on the surface of the hard drive during manufacture d. none of the other choices e. linear (straight, parallel lines) designed for fast access
d. none of the other choices
By the time the manufacturing process (in 2016) is complete, the CPU may have over ______________ etched one on top of the other, separated by insulating layers. a. none of the other choices b. 2000 layers c. 20000 layers d. 2 layers e. 20 layers
e. 20 layers
One feature of ______________ is the enforcement of clear object types, in the code, which ensures that programmers need to consistently define all object types used in the code before they are used, and then use them consistently. a. FORTRAN b. BASIC c. Assembly d. none of the other choices e. PASCAL
e. PASCAL
A trading partner agreement for a shipment has text in two languages, English and Chinese. The ________ coding standard can be used to digitize this document. a. ASCII b. Extended ASCII c. None of the other choices. d. Machine Language e. Unicode (UTF-16)
e. Unicode (UTF-16)
The CPU performs the ________________________. a. mathematical processes in the systems b. logical processes in the system c. controls the system d. a and b e. a and c f. b and c g. a, b, and c h. none of the other choices
g. a, b, and c
