Question 1 (1 point) One of the advantages of handheld computers is that they re

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Question 1 (1 point)

One of the advantages of handheld computers is that they require little power relative to their size.

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Question 2 (1 point)

Sequential access storage devices (SASDs) allow data to be accessed more quickly than direct access storage devices (DASDs).

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Question 3 (1 point)

Moore’s Law is a rule of thumb that states that transistor densities on a single chip will reduce to half every two years.

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Question 4 (1 point)

Secondary storage can store large amounts of data, instructions, and information more permanently than allowed with main memory.

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Question 5 (1 point)

RAM stands for random access memory, a form of memory that holds its contents even if the current is turned off or disrupted.

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Question 6 (1 point)

A coprocessor speeds processing by executing specific types of instructions while the central processing unit (CPU) works on another processing activity.

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Question 7 (1 point)

There are a number of compact disk devices including read-only, recordable, and rewritable.

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Question 8 (1 point)

_____ are used to support engineering and technical users who perform heavy mathematical computing, computer-assisted design (CAD), video editing, and other applications requiring a high-end processor.

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Desktops

Netbooks

Workstations

Notebooks

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Question 9 (1 point)

A digital video disc (DVD) looks like a compact disc read-only memory (CD-ROM) but has a greater storage capacity and can transfer data at a faster rate.

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Question 10 (1 point)

_____ are the most powerful computers with the fastest processing speed and highest performance.

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Blade servers

Workstations

Mainframe computers

Supercomputers

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Explanation / Answer

1)true

based on the size of the equipment reqired power also change.

2)true

DASD's require seeking operation.

3)false

the number of transistors in a dense integrated circuit doubles approximately every two years.

4)true

secondary memories have low cost high capacity.

5)false

RAM (random access memory) used for primary storage in personal computers is volatile memory.so it lost data after power off.

6)true

A coprocessor is a computer processor used to supplement the functions of the primary processor (the CPU). Operations performed by the coprocessor may be floating point arithmetic, graphics, signal processing, string processing, encryption or I/O Interfacing with peripheral devices.

7)true

8)Workstation

A workstation is a special computer designed for technical or scientific applications.

Workstations offered higher performance than mainstream personal computers, especially with respect to CPU and graphics, memory capacity, and multitasking capability. Workstations were optimized for the visualization and manipulation of different types of complex data such as 3D mechanical design, engineering simulation (e.g. computational fluid dynamics), animation and rendering of images, and mathematical plots.

9)true

10)Supercomputers

Supercomputers normally make use of customized compute units (called blades) which usually house multiple nodes (CPUs, GPUs). In the case of the Cray XK6, the most powerful blade in the world, each blade contains four nodes, and each node houses a 16-core AMD Opteron CPU and Nvidia Tesla GPU, and 16 or 32GB of RAM. These nodes are connected together with a proprietary interconnect (usually optical). Multiple blades are then stacked together in racks (again, optically networked), allowing for tens of thousands of nodes to be crammed into a large room.

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