CSIS 110 Chapter 5
The prefix micro refers to which power of ten?
10^-6
The prefix nano refers to which power of ten?
10^-9
If a laptop computer contains a motherboard having dual core processors, each of which works at as speed advertised at 2.66GHz with a FSB/6M cache, how fast can each of the processors perform its various operations?
2.6 billion operations per second
The prefix mega refers to which power of two?
2^20
The prefix giga refers to which power of two?
2^30
Which of the following best describes a register?
A small memory location in the central processing unit
Which of the following executes an instruction once it is decoded?
ALU
Which of the following is a collection of wires that carries address, data, and control information?
Bus
Which touch screen technology uses a laminate that conducts electricity and causes current to flow to a finger or stylus when touched?
Capacitive touch screen
Which of the following contains the instruction register?
Control unit
Which of the following contains the program counter?
Control unit
Which of the following manages the fetch-execute cycle?
Control unit
True or False? A megabyte of memory space is larger than a gigabyte of memory space.
False
True or False? RAM is non-volatile and ROM is volatile.
False
True or False? The bit pattern stored at a particular memory location conveys the kind of information that it represents (a number, part of an image, etc.).
False
True or False? The program counter is a register that stores the number of instructions executed by a computer.
False
True or False? The read/write heads of a disk drive all read from the same disk at the same time.
False
True or False? The seek time of a disk drive is the time it takes for the specified sector to rotate under the read/write head.
False
True or False? The control unit manages the fetch-execute cycle.
True
True or False? The data on a CD-RW can be rewritten.
True
Which of the following is the time it takes for the specified sector to rotate to the read/write head of a disk drive?
Latency
True or False? The fetch part of the fetch-execute cycle fetches the next instruction to be executed from memory.
True
Which of the following is volatile?
RAM
What is the role of random-access memory (RAM) in a computer?
RAM stores information temporarily and permits each computer byte of memory to be accessed directly.
Which of the following means that each memory location can be accessed directly?
Random access
True or False? The term embedded system now refers to any computer that is pre-programmed to perform a dedicated or narrow range of functions as part of a larger system.
True
Which of the following is the time it takes for the read/write head of a disk drive to get into position over a specified track?
Seek time
A von Neumann computer architecture is best characterized by which of the following?
Stored-program concept
Which parallel-processing approach applies the same program to multiple data sets using multiple ALUs?
Synchronous processing
What is the function of the front side bus (FSB) in a computer?
The FSB permits the central core processor to access input/output devices and memory NOT stored in the cache.
True or False? The von Neumann architecture is characterized by the fact that instructions and data are logically the same and can both be stored in memory.
True
Which of the following is NOT a valid reason that the four steps in the Fetch-Execute cycle must occur in the order given?
The instruction cannot be executed until the program counter has been incremented
Which of the following statements is true of all embedded systems?
They are designed to perform a narrow range of functions as part of a larger system.
The interface called SATA (serial ATA) used with the hard disk drive is both faster and less costly to make than the Parallel ATA in the transmission of individual data bits
True
True or False? A bus is a group of wires through which data travels within a computer.
True
True or False? A disk drive may be composed of multiple disks.
True
True or False? A register is a small storage area in the CPU.
True
True or False? A touch screen is both an input and output device.
True
True or False? A volatile storage device loses the contents of its memory if its power supply is turned off.
True
True or False? Both RAM and ROM are random-access devices.
True
True or False? Pipelining is a technique that uses several different processors, where each contributes one part to an overall computation.
True
True or False? Task-level parallelism is based on the idea that different processors can execute different tasks simultaneously.
True
True or False? The control unit and the arithmetic/logic unit are both part of the central processing unit (CPU).
True