Computer Science: An Overview (13th Edition) (What's New in Computer Science)
13th Edition
ISBN: 9780134875460
Author: Glenn Brookshear, Dennis Brylow
Publisher: PEARSON
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Chapter 0, Problem 7SI
Explanation of Solution
Use of abstract tools in the technology:
- Abstraction refers to the distinction between the external properties of an entity and the details of the entity’s internal composition.
- Abstraction that allows us to ignore the internal details of a complex device such as a computer, automobile, or microwave oven and use it as a single, comprehensible unit.
- Computers, automobiles, and microwave ovens are constructed from components, each of which represents a level of abstraction at which the use of the component is isolated from the details of the component’s internal composition.
- At each level of abstraction, system is viewed in terms of components, called abstract tools, whose internal composition is ignored.
- Development of large software systems is accomplished in a modular fashion in which each module is used as an abstract tool in larger modules.
- Subjects such as electrical engineering use MATLAB software to draw graphs, conclusions and simulate circuits without the need to work on paper.
- In
mechanical Engineering, technologists or students use AUTOCAD or CATIA platform to draw designs in the software. - In physics, the experiments are performed on online platform and applets which help to visualize the results without actually performing the experiment.
“No”, the modern word processors don’t eliminate the need to develop spelling skills. They aid in performing checks against inadvertent errors, but the intellect and knowledge obtained from reading and learning through books and novels helps one to grow mentally.
- “Yes”, the technology might remove the need to read someday as everything is getting automated and learning platforms are getting based on videos and image content.
- Most of the students rely on online learning through video content rather than going through books and analyzing the data and problems.
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Students have asked these similar questions
How to develop a C program that receives the message sent by the provided program and displays the name and email included in the message on the screen?Here is the code of the program that sends the message for reference:
typedef struct { long tipo; struct { char nome[50]; char email[40]; } dados;} MsgStruct;
int main() { int msg_id, status; msg_id = msgget(1000, 0600 | IPC_CREAT); exit_on_error(msg_id, "Creation/Connection"); MsgStruct msg; msg.tipo = 5; strcpy(msg.dados.nome, "Pedro Silva"); strcpy(msg.dados.email, "pedro@sapo.pt"); status = msgsnd(msg_id, &msg, sizeof(msg.dados), 0); exit_on_error(status, "Send"); printf("Message sent!\n");}
9. Let L₁=L(ab*aa), L₂=L(a*bba*). Find a regular expression for (L₁ UL2)*L2.
10. Show that the language
is not regular.
L= {a":n≥1}
11. Show a derivation tree for the string aabbbb with the grammar
S→ABλ,
A→aB,
B→Sb.
Give a verbal description of the language generated by this grammar.
14. Show that the language
L= {wna (w) < Nь (w) < Nc (w)}
is not context free.
Chapter 0 Solutions
Computer Science: An Overview (13th Edition) (What's New in Computer Science)
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