Functions of apps:

Calendar and email:

Calendar application helps users to make their schedules whereas email application helps people to share information to other persons.

Email is a web program that lets the users to edit and share it with other persons which can be accessed only with the help of Internet connectivity.

Some of the features offered by calendar application are:

It offers drag and drop options for creating plans and events.

It supports for recurring daily, weekly, monthly and yearly events.

It also offers many languages which will be convenient for the users.

E-mail application often synchronizes with the contacts list in mobile device and it suggests images to send when the user types the name of the person.
Scanning:

This application uses mobile device’s camera to scan QR code.

The full form of QR code is Quick Response code.

QR codes are similar to barcode which contains matrix of dots that signifies the web address and other data.

They are scanned by QR scanner or a mobile device with the help of camera.

Some shops and super markets use this scanner which provides the cost of the specific item that the user buys.

Financial application:

It is an accounting application that aids the users at home and offices to balance their checkbooks, bills, and also it helps to track income, expenses, and investments in order to estimate financial plans.

This software helps the users to find out the purpose they are spending money so that they can manage their finances.

It contains financial planning features like,

Analyzing home and personal loans

Preparing income taxes

Supervising retirement savings

Managing home stock

Setting up budgets, and so on...

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Chapter 4, Problem 24SG

Chapter 4, Problem 26SG

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2. Signed Integers Unsigned binary numbers work for natural numbers, but many calculations use negative numbers as well. To deal with this, a number of different methods have been used to represent signed numbers, but we will focus on two's complement, as it is the standard solution for representing signed integers. 2.1 Two's complement • Most significant bit has a negative value, all others are positive. So, the value of an n-digit -2 two's complement number can be written as: Σ2 2¹ di 2n-1 dn • Otherwise exactly the same as unsigned integers. i=0 - • A neat trick for flipping the sign of a two's complement number: flip all the bits (0 becomes 1, or 1 becomes 0) and then add 1 to the least significant bit. • Addition is exactly the same as with an unsigned number. 2.2 Exercises For questions 1-3, answer each one for the case of a two's complement number and an unsigned number, indicating if it cannot be answered with a specific representation. 1. (15 pts) What is the largest integer…

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1. Unsigned Integers If we have an n-digit unsigned numeral dn-1d n-2...do in radix (or base) r, then the value of that numeral is n−1 r² di Σi=0 which is basically saying that instead of a 10's or 100's place we have an r's or r²'s place. For binary, decimal, and hex r equals 2, 10, and 16, respectively. Just a reminder that in order to write down a large number, we typically use the IEC or SI prefixing system: IEC: Ki = 210, Mi = 220, Gi = 230, Ti = 240, Pi = 250, Ei = 260, Zi = 270, Yi = 280; SI: K=103, M = 106, G = 109, T = 10¹², P = 1015, E = 10¹8, Z = 1021, Y = 1024. 1.1 Conversions a. (15 pts) Write the following using IEC prefixes: 213, 223, 251, 272, 226, 244 21323 Ki8 Ki 223 23 Mi 8 Mi b. (15 pts) Write the following using SI prefixes: 107, 10¹7, 10¹¹, 1022, 1026, 1015 107 10¹ M = 10 M = 1017102 P = 100 P c. (10 pts) Write the following with powers of 10: 7 K, 100 E, 21 G 7 K = 7*10³

Chapter 4 Solutions

EBK ENHANCED DISCOVERING COMPUTERS & MI

Ch. 4 - Prob. 1SG Ch. 4 - Prob. 2SG Ch. 4 - Prob. 3SG Ch. 4 - Prob. 4SG Ch. 4 - _____ software performs functions specific to a...Ch. 4 - Prob. 6SG Ch. 4 - List any restrictions for shareware, freeware,...Ch. 4 - Prob. 8SG Ch. 4 - Prob. 9SG Ch. 4 - Prob. 10SG

Ch. 4 - Prob. 11SG Ch. 4 - Prob. 12SG Ch. 4 - Prob. 13SG Ch. 4 - Prob. 14SG Ch. 4 - Prob. 15SG Ch. 4 - Prob. 16SG Ch. 4 - Prob. 17SG Ch. 4 - Prob. 18SG Ch. 4 - Prob. 19SG Ch. 4 - Prob. 20SG Ch. 4 - Prob. 21SG Ch. 4 - Prob. 22SG Ch. 4 - Prob. 23SG Ch. 4 - Prob. 24SG Ch. 4 - Prob. 25SG Ch. 4 - Prob. 26SG Ch. 4 - Prob. 27SG Ch. 4 - Prob. 28SG Ch. 4 - Prob. 29SG Ch. 4 - Prob. 30SG Ch. 4 - Prob. 31SG Ch. 4 - Prob. 32SG Ch. 4 - Prob. 34SG Ch. 4 - Prob. 35SG Ch. 4 - Prob. 36SG Ch. 4 - Prob. 37SG Ch. 4 - Prob. 38SG Ch. 4 - Prob. 39SG Ch. 4 - Prob. 40SG Ch. 4 - Prob. 41SG Ch. 4 - Prob. 42SG Ch. 4 - Prob. 43SG Ch. 4 - Prob. 44SG Ch. 4 - Prob. 45SG Ch. 4 - Prob. 46SG Ch. 4 - Prob. 47SG Ch. 4 - Prob. 48SG Ch. 4 - Prob. 49SG Ch. 4 - Prob. 1TF Ch. 4 - Prob. 2TF Ch. 4 - Prob. 3TF Ch. 4 - Prob. 4TF Ch. 4 - Prob. 5TF Ch. 4 - Prob. 6TF Ch. 4 - Prob. 7TF Ch. 4 - Prob. 8TF Ch. 4 - Prob. 9TF Ch. 4 - Prob. 10TF Ch. 4 - Prob. 11TF Ch. 4 - Prob. 12TF Ch. 4 - Prob. 1MC Ch. 4 - Prob. 2MC Ch. 4 - Prob. 3MC Ch. 4 - Prob. 4MC Ch. 4 - Prob. 5MC Ch. 4 - Prob. 6MC Ch. 4 - Prob. 7MC Ch. 4 - Prob. 8MC Ch. 4 - Prob. 1M Ch. 4 - Prob. 2M Ch. 4 - Prob. 3M Ch. 4 - Prob. 4M Ch. 4 - Prob. 5M Ch. 4 - Prob. 6M Ch. 4 - Prob. 7M Ch. 4 - Prob. 8M Ch. 4 - Prob. 9M Ch. 4 - Prob. 10M Ch. 4 - Prob. 2CT Ch. 4 - Prob. 3CT Ch. 4 - Prob. 4CT Ch. 4 - Prob. 5CT Ch. 4 - Prob. 6CT Ch. 4 - Prob. 7CT Ch. 4 - Prob. 8CT Ch. 4 - Prob. 9CT Ch. 4 - Prob. 10CT Ch. 4 - Prob. 11CT Ch. 4 - Prob. 12CT Ch. 4 - Prob. 13CT Ch. 4 - Prob. 14CT Ch. 4 - Prob. 15CT Ch. 4 - Prob. 16CT Ch. 4 - Prob. 17CT Ch. 4 - Prob. 18CT Ch. 4 - Prob. 19CT Ch. 4 - Prob. 20CT Ch. 4 - Prob. 21CT Ch. 4 - Prob. 22CT Ch. 4 - Prob. 23CT Ch. 4 - Prob. 24CT Ch. 4 - Prob. 25CT Ch. 4 - Prob. 26CT Ch. 4 - Prob. 27CT Ch. 4 - Prob. 28CT Ch. 4 - Prob. 29CT Ch. 4 - Prob. 30CT Ch. 4 - Prob. 1PS Ch. 4 - Prob. 2PS Ch. 4 - Prob. 3PS Ch. 4 - Prob. 4PS Ch. 4 - Prob. 5PS Ch. 4 - Prob. 6PS Ch. 4 - Prob. 7PS Ch. 4 - Prob. 8PS Ch. 4 - Prob. 9PS Ch. 4 - Prob. 10PS Ch. 4 - Prob. 1.1E Ch. 4 - Prob. 1.2E Ch. 4 - Prob. 1.3E Ch. 4 - Prob. 2.1E Ch. 4 - Prob. 2.2E Ch. 4 - Prob. 2.3E Ch. 4 - Prob. 3.1E Ch. 4 - Prob. 3.2E Ch. 4 - Prob. 3.3E Ch. 4 - Prob. 4.1E Ch. 4 - Prob. 4.2E Ch. 4 - Prob. 4.3E Ch. 4 - Prob. 5.1E Ch. 4 - Prob. 5.2E Ch. 4 - Prob. 5.3E Ch. 4 - Prob. 1IR Ch. 4 - Prob. 2IR Ch. 4 - Prob. 4IR Ch. 4 - Prob. 2CTQ

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Solution Summary: The author explains the functions of calendar and email applications.

Explanation of Solution

Chapter 4 Solutions