Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Engineering Expert

problem 1:

a) A product barcode doesn’t contain product price. describe the steps that take place for the price to be obtained. Describe how, in a supermarket, the product price is obtained at the checkout when a product code is scanned.

b) A bank customer has two numbers related with his or her ATM card.

  • Name such two numbers.
  • describe the internal processes that grant authority for the machine to proceed with transactions by using this card.

c) describe the phases that an email message goes via from the moment the sender presses the SEND button until the time that the recipient reads the message AT A LATER DATE.

d) Name a specific configuration for a LAN and draw a labeled diagram.

e) Name two system programs and illustrate the purpose of each.

f) Illustrate four benefits of using a numeric code for a product instead of using its real name.

g) Describe what is meant by systems life cycle.

Name any three phases of this cycle. For each describe, in one sentence, its main purpose.

h) Name four tasks which a professional business programmer undertakes in his normal course of duty.

i) Spreadsheet programs give a large number of standard functions.

Define function. Name such a function and describe a particular illustration of its use.

j) The membership secretary of a club learns that his work is to be computerized. List four ways in which his work will be changed or enhanced. Your answer must refer specifically to this application.

problem 2: You wish to make a database holding details of all your family and friends so that you could use it to extract details like name, address, telephone number, birthday and relationship to you.

a) Describe how you would first make the structure for this database.

b) Define accurately the terms RECORD and FIELD, giving a single instance of each taken from this application.

c) In table format, list six items of data that would be required for this application, giving, for each, an illustration AND its data-type.

d) You wish to send a greetings card to chosen people listed in the file. Describe how you could print a list of all people, with their birth dates, who have birthdays in February.

e) Describe why date of birth, instead of age, is normally held in a database.

problem 3: Choose a currently available commercial word-processing package. Describe, IN GENERAL TERMS, how each of the given features is accomplished. Avoid answers like “press F4”.

a) The user chooses the spelling checker. describe all the options which are then open to the user. Describe and give two illustrations where the spelling checker cannot be able to detect an error.

b) describe carefully how a block of text can be moved from one part of a document and placed in the other position of the same document.

c) Define the terms SUBSCRIPT and SUPERSCRIPT. Give a specific illustration of the use for each.

Choose one of these and describe how it is implemented.

d) A word-processing document comprises some text that is underlined. This document is then saved onto disk.

The document is retrieved later. Describe how the WORD-PROCESSING PROGRAM itself is able to identify those words that have been underlined.

problem 4:

a) Differentiate clearly between the terms VALIDATION and VERIFICATION.

b) Describe why automatic validation is performed when data is FIRST entered into a computer.

c) Below is CORRECT data held in a college file for a specific student.

Name John Brown
Student number 12343
Date of birth 23/12/1983
Fees due 123.45

prepare down similar data for the other student however with an error in each item, which the COMPUTER would be able to detect as being INCORRECT. Make sure the errors are of different types. In each case, describe why the program would be able to detect the error.

d) Give two specific illustrations where a computer would NOT be able to detect an error, describing why in each case.

problem 5:

a) Differentiate between RAM and ROM.

b) Draw a diagram showing the fundamental configuration of a computer with input, output and storage facilities.

c) Define the term OMR and describe precisely why it is used in the marking of examination papers.

d) Choose two different kinds of printers.

For each, describe how data in memory is physically printed.

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M94429

Have any Question? 


Related Questions in Computer Engineering

In a company all files which are sent on the network are

In a company, all files which are sent on the network are automatically encrypted by using AES-128 in CBC mode. A fixed key is used, and the IV is changed once per day. The network encryption is file-based, so that the I ...

What functions does the internal security consultant

What functions does the internal security consultant perform, and what are the key qualifications and requirements for the position? What is the rationale for acquiring professional credentials? List and describe the cer ...

Individual visual logic calculationsselect two calculation

Individual: Visual Logic: Calculations? Select two calculation tasks that a program could perform that could be used by a small business. Each task must include the following: • Inputting a value • Performing a calculati ...

1 as mentioned in the link-layer fragmentation and

1. As mentioned in the "Link-Layer Fragmentation and Interleaving" section, PPP, Frame Relay, ATM, and other WAN technologies support fragmenting packets (frames) at Layer 2. As you may have learned in basic networking c ...

Consider how enciphering of connections would affect

Consider how enciphering of connections would affect thumbprinting. a. If the connection contents were enciphered using an end-to-end encipherment protocol, would thumbprinting work? Why or why not? b. If the connection ...

1 how many invalid unused code sequences can we have in

1. How many invalid (unused) code sequences can we have in 5B/6B encoding? How many in 3B/4B encoding? 2. What is the result of scrambling the sequence 11100000000000 using each of the following scrambling techniques? As ...

1 your job is to cook 3 cakes as efficiently as possible

1. Your job is to cook 3 cakes as efficiently as possible. Assuming that you only have one oven large enough to hold one cake, one large bowl, one cake pan, and one mixer, come up with a schedule to make three cakes as q ...

What are the fundamental differences between

What are the fundamental differences between cost-effectiveness analysis and cost-benefit analysis? When is each most appropriately used?

Spatial location and grass in the wolf sheep simple model

Spatial location and grass In the Wolf Sheep Simple model, the grass is randomly distributed across the space. However it is more realistic that areas of grass are spatially collocated, that is, areas with more grass are ...

Take a 512 x 512 image containing noise design low-pass

Take a 512 x 512 image containing noise. Design low-pass, band-pass, and high-pass zonal masks in different transform domains such that their passbands contain equal energy. Map the three filtered images into R, G, B col ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro