قديم منذ /08-11-2016, 04:46 PM   #11

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26. What role does database management play in managing data as a business resource?

27. Discuss the five Database Structures (Models). In ch 5


1- Hierarchical Structure – treelike structure of one-to-many parent-child relationships (each child can have only one parent)

2- Network Structure – similar to hierarchical but allows many-to-many relationships (a child record can have more than one parent)

3- Relational Structure – the most widely used database model today; data is represented as a series of two-dimensional tables called Relations; each column is a named attribute of the entity, each row is an unnamed instance of that entity



4- Multidimensional Structure – variation of the Relational model using multidimensional structures to organize and express relationships

5- Object-Oriented Structure – combining the data of interest and the processes that act on that data into a structure called an object


28. Discuss the differences between client/server and peer-to-peer networks?

29. The CPU (Central Processing Unit) consists of two units. What are these units and their functions? In ch 3

Processing – the CPU (Central Processing Unit)
consists of the Arithmetic-Logic Unit (ALU – performs the arithmetic and logic functions)
and the Control Unit (controls the rest of the computer)


30. What are the main Information systems activities and describe each activity? In ch 1
Information System Activities


Input of Data Resources
Processing of Data into Information – organize, analyze, and manipulate data

Output of Information Products – dissemination of information products to appropriate end users

Storage of Data Resources
Control of System Resources – monitoring feedback to assure the system meets its performance standards


31. Discuss about value chain and strategic IS. In ch 2


32. What are the Storage Tradeoffs? Discuss the Storage Tradeoffs for both primary storage and secondary storage media. In ch 3

Tradeoffs are Cost vs. speed vs. capacity, but all regularly increase in speed, cost and capacity .

Primary Storage (Random Access Memory or RAM) – Semiconductor memory, Volatile; faster but more expensive
Secondary Storage – Magnetic Disks, Optical Disks, Magnetic Tape; Non-Volatile; slower but cheaper


33. What is the main goal of Middleware? In ch 6

Middleware – it is programs that mediate between other programs; an essential part of IT infrastructure because it joins disparate systems

34. What is Database Management System (DBMS)? In ch 5

Database Management System (DBMS) – a collection of programs to create, maintain, and use (retrieve) data in a database
35. What is the Business Value of Intranets?
36. What is the difference between a LAN, a MAN, a WAN networks? In ch 6

A Network is defined by its geographic area and who owns the equipment

Wide Area Networks (WAN) – between cities/large geographic areas, LANs connected by common carrier or leased lines
Metropolitan Area Networks (MAN) – LANs connected over a specific geographical area
Local Area Networks (LAN) – equipment owned by the firm, short distances, usually within a single building (or room)

37. What is the Online Transaction Processing Systems? In ch 7


Online transaction Processing Systems capture and process transactions immediately, in real time


38. How could sales force automation affect salesperson productivity, marketing management, and competitive advantage?









التعديل الأخير تم بواسطة Tammy ; 08-11-2016 الساعة 05:48 PM
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قديم منذ /08-11-2016, 07:21 PM   #12

طالب جديد

salwarashed غير متواجد حالياً

 

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اقتباس:
المشاركة الأصلية كتبت بواسطة tammy مشاهدة المشاركة
26. What role does database management play in managing data as a business resource?

27. Discuss the five database structures (models). In ch 5


1- hierarchical structure – treelike structure of one-to-many parent-child relationships (each child can have only one parent)

2- network structure – similar to hierarchical but allows many-to-many relationships (a child record can have more than one parent)

3- relational structure – the most widely used database model today; data is represented as a series of two-dimensional tables called relations; each column is a named attribute of the entity, each row is an unnamed instance of that entity



4- multidimensional structure – variation of the relational model using multidimensional structures to organize and express relationships

5- object-oriented structure – combining the data of interest and the processes that act on that data into a structure called an object


28. Discuss the differences between client/server and peer-to-peer networks?

29. The cpu (central processing unit) consists of two units. What are these units and their functions? In ch 3

processing – the cpu (central processing unit)
consists of the arithmetic-logic unit (alu – performs the arithmetic and logic functions)
and the control unit (controls the rest of the computer)


30. What are the main information systems activities and describe each activity? In ch 1
information system activities


input of data resources
processing of data into information – organize, analyze, and manipulate data

output of information products – dissemination of information products to appropriate end users

storage of data resources
control of system resources – monitoring feedback to assure the system meets its performance standards


31. Discuss about value chain and strategic is. In ch 2


32. What are the storage tradeoffs? Discuss the storage tradeoffs for both primary storage and secondary storage media. In ch 3

tradeoffs are cost vs. Speed vs. Capacity, but all regularly increase in speed, cost and capacity .

Primary storage (random access memory or ram) – semiconductor memory, volatile; faster but more expensive
secondary storage – magnetic disks, optical disks, magnetic tape; non-volatile; slower but cheaper


33. What is the main goal of middleware? In ch 6

middleware – it is programs that mediate between other programs; an essential part of it infrastructure because it joins disparate systems

34. What is database management system (dbms)? In ch 5

database management system (dbms) – a collection of programs to create, maintain, and use (retrieve) data in a database
35. What is the business value of intranets?
36. What is the difference between a lan, a man, a wan networks? In ch 6

a network is defined by its geographic area and who owns the equipment

wide area networks (wan) – between cities/large geographic areas, lans connected by common carrier or leased lines
metropolitan area networks (man) – lans connected over a specific geographical area
local area networks (lan) – equipment owned by the firm, short distances, usually within a single building (or room)

37. What is the online transaction processing systems? In ch 7


online transaction processing systems capture and process transactions immediately, in real time


38. How could sales force automation affect salesperson productivity, marketing management, and competitive advantage?
ماقصرتي الله يوفقك❤❤







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قديم منذ /08-11-2016, 07:26 PM   #13

طالب جديد

salwarashed غير متواجد حالياً

 

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طلاب
جمعت اجوبة tammy مع أجوبتي في ملف وورد
ملاحظة/ باقي حل السؤال 31 وبكذا نكون حلينا كل أسئلة الستدي قايد والله يوفقنا ويوفق الجميع








الملفات المرفقة
نوع الملف: docx study guide part 2.docx‏ (213.8 كيلوبايت, المشاهدات 53)
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قديم منذ /08-11-2016, 09:13 PM   #14

طالب جديد

Bashayeer غير متواجد حالياً

 

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يعطيكم العافية وبالتوفيق للجميع








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قديم منذ /09-11-2016, 10:50 AM   #15

طالب جديد

Tammy غير متواجد حالياً

 

مواضيعي | ردودي

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تم شكره 7 مرة في 2 مشاركة
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28. Discuss the differences between client/server and peer-to-peer networks? in ch 6


Client/Server Networks – a powerful, central computer (server) providing information and processing (services) to multiple end-user computers (clients)



Peer-to-Peer Networks (P2P)

Central Server Architecture – P2P software connects a PC to the central server with a directory of all other users (peers)
Pure Peer-to-Peer – PCs connected without any central server








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قديم منذ /09-11-2016, 10:57 AM   #16

طالب جديد

Tammy غير متواجد حالياً

 

مواضيعي | ردودي

 رقم العضوية : 21646
 تاريخ الإنتساب : May 2016
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 الجنس : أنثى
 مستوى التقييم : Tammy is on a distinguished road
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تم شكره 7 مرة في 2 مشاركة
افتراضي


31. Discuss about value chain and strategic IS.


اعتقد اجابته في شابتر ٢








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قديم منذ /09-11-2016, 11:26 AM   #17

 
الصورة الرمزية Fatma
طالب جديد

Fatma غير متواجد حالياً

 

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many thanks








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