Computer Systems Flashcards

(64 cards)

1
Q

 Machine that uses electronic components and instructions to the components to perform:
1. Calculations
2. Repetitive and complex procedures
3. Process text
4. Manipulate data and signals

A

Computer

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2
Q

The largest type of computer

A

Super computers

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3
Q

 First developed by Seymour Cray in 1972

A

Supercomputers

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4
Q

 Designed primarily for analysis of scientific and engineering problems and for tasks requiring millions or billions of computational operations and calculations, they are huge and expensive.

A

Super computers

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5
Q

 The most common fast, large, and expensive type of computer used in large businesses for processing, storing, and retrieving data.

A

Mainframes

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6
Q

 It is a large multiuser central computer that meets the computing needs of large- and medium-sized public and private organizations.

A

Mainframes

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7
Q

The machines and software that process transactions in high-volume businesses are known as

A

transaction processing systems (TPS).

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8
Q

Computers designed to support a single user

A

Microcomputera

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9
Q

 small, special function computers, although a few “full function” handheld computers were introduced in the late 1990s.

A

Handhel computers

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10
Q

Other name for microcomputera

A

Personal computer

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11
Q

 refer to how the machine stores information at the lowest, or “closest to machine registers and memory,” level.

A

Bit and bytes

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12
Q

unit of data in the binary numbering system.
And Are grouped into collections of 8, which then function as a unit.

A

Bit

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13
Q
A
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14
Q

It is made up of 8 bits.

A

Byte

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15
Q

There are how many different combinations of 0 and 1 in an 8-character (or 1-byte) unit.

A

255

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16
Q

The CPU speed is measured in cycles per second, which are called the

A

Clock speed of the computer

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17
Q
A
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18
Q

One million cycles per second is called

A

1 megahertz MHz

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19
Q

is one important measure of the power of a computer

A

Clock speed

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20
Q

 four types of cycles, or operations of a CPU:

A

Fetch
Decode
Execute
Store

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21
Q

 A set of cooperative interconnected computers for the purpose of information interchange. The networks of greatest interest include local area networks (LANs), wide area networks (WANs), and the Internet, which is a network of networks.

A

Network hardware

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22
Q

defined as all of the physical components of a computer

A

Hardware

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23
Q

Examples of hardwares

A

CPU
Memory Card
Input and output devices

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24
Q

 a square or rectangular board with circuits into which are plugged the main electronics of the

A

Motherboard

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25
26
A thin, flat sheet made of a firm, non-conducting material on which the internal components—printed circuits, chips, slots, and so on—of the are mounted.
Motherboard
27
Brains of th computer
CPU
28
motherboard’s storage media
Memory
29
form of permanent storage in the computer.  carries instructions that allow the to be booted (started), and other essential machine instructions.
READ ONLY MEMORY ROM
30
 refers to working memory used for primary storage.  It is used as temporary storage.  Also known as main memory, it can be accessed, used, changed, and written on repeatedly.
RANDOM ACCESS MEMORY RAM
31
RAM is also called as
Volatile memory
32
 a smaller form of RAM.  to speed up processing by storing frequently called items in a small, rapid access memory location.
Cache
33
allow the computer to receive information from the outside world.
Input devices
34
 The most common input devices are the
Keyboard and mouse
35
Allow the to report its results to the external world.
Output devices
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 Defined as any equipment that translates the computer information into something readable by people or other machines.
Output devices
38
The most obvious output devices are the
Monitor and printer Usb drive
39
40
The most common storage media
Computer Hard drive
41
 a peripheral device that has very high speed and high density.  the main storage device of a computer.
Hard drive
42
i s actually a form of a small, removable hard drive that is inserted into the USB port of the computer.
Usb drive
43
The USB drive is also known as
Pen drive, jump drive, thistle drive, pocket drive
44
Optical media includes
CDs, DVDs, and Blu-ray
45
An extension of the online storage service offered by individual vendors is the
Cloud storage
46
It refers to a distributed system of many commercial, networked servers that communicate through the Internet, and work together so closely that they can essentially function as one large system.
Cloud
47
is a computer circuit board or card that is installed in a computer so that it can be connected to a network.
Network adapter
48
It is the means by which actual transfer of data from one site to another takes place.
Communication medium
49
50
the choice of a communication medium is based on the following:
Distance Amount of data transfer How often the transfer is needed Availability
51
the general term applied to the instructions that direct the computer’s hardware to perform work.
Software
52
 consists of a variety of programs that control the individual and make the user’s application programs work well with the hardware. It consists of a variety of programs that initialize, or boot up, the computer when it is first turned on and thereafter control all the functions of the computer hardware and applications software.
System software
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helps speed up the computer’s processing, expands the power of the by creating cache memory, reduces the amount of confusion when multiple programs are running together, “cleans up” the hard drive so that storage is managed efficiently, and performs other such system management tasks.
System software
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includes the main memory but also external devices on which programs and data are stored.
Storage media
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Examples of microcomputers
Phone Laptop Desktop computer Notebook Tablet
60
 small, special function computers, although a few “full function” handheld computers were introduced in the late 1990s.
Handheld computers
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62
More popular are the __________________, including personal digital assistants (PDAs), which are the smallest of the handheld computers.
Palm sized computers
63
a very small special function handheld computer that provides calendar, contacts, and note-taking functions, and may provide word processing, spread sheet, and a variety of other functions
Personal Digital Assistant
64