Today computers have been important factor to society because of the way they are used towards education‚ government‚ internet‚ and etc. Most of the people want to buy a computer to be able to us internet. With internet you could chat with people all over the world‚ research information‚ buy and order supplies‚ food‚ computers‚ movies‚ clothing‚ and etc‚ so having internet in computers is very helpful for many. Computers have been tremendously beneficial to the educational system since the style
Premium Microsoft Microsoft Word Word processor
Data transmission‚ digital transmission‚ or digital communications is the physical transfer of data (a digital bit stream) over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires‚ optical fibres‚ wireless communication channels‚ and storage media. The data are represented as an electromagnetic signal‚ such as an electrical voltage‚ radiowave‚ microwave‚ or infrared signal. Data representation can be divided into two categories: Digital
Premium Data transmission Modulation Computer network
Databases and Data Communication BIS 320 September 16‚ 2013 Lisa Ricks Databases and Data Communication Databases are great when you want to create a model of data such as numbers for figuring out how much you can spend on a new home when you are in the buying marketing‚ you can use excel to figure out how much you can spend and a monthly payment. You can also use a database to track of shipping components from a trade show that you are in charge of. You can use a database to organize
Premium Computer network Local area network Virtual private network
CHAPTER 17 DATA MODELING AND DATABASE DESIGN SUGGESTED ANSWERS TO DISCUSSION QUESTIONS 17.1 Why is it not necessary to model activities such as entering information about customers or suppliers‚ mailing invoices to customers‚ and recording invoices received from suppliers as events in an REA diagram? The REA data model is used to develop databases that can meet both transaction
Premium Balance sheet Entity-relationship model Sales order
Computers and Society Evaluating the Impact of Technology Chris Brooks Department of Computer Science University of San Francisco Evaluating Technological Impact It can be useful to think about the ways in which technology impacts the way we live our lives. Most computer scientists have a pretty positive view of technology. Is that view justified? How do we defend that view to other‚ more skeptical points of view? Department of Computer Science — University of San Francisco – p.1/? Research
Premium Technology Computer Computer science
LECTURE 1 DATA TYPES Our interactions (inputs and outputs) of a program are treated in many languages as a stream of bytes. These bytes represent data that can be interpreted as representing values that we understand. Additionally‚ within a program we process this data that can be interpreted as representing values that we understand. Additionally‚ within a program we process this data in various way such as adding them up or sorting them. This data comes in different forms. Examples include: your
Premium Data type
Internet bandwidth requirements kept challenging traditional‚ software-based packet processing architectures. The perceived complexity of programming routing functions in silicon‚ led to formation of several startups determined to find new ways to process IP and MPLS packets entirely in hardware and blur boundaries between routing and switching. One of them‚ Juniper Networks‚ shipped their first product in 1999 and by 2000 chipped away about 30% from Cisco SP Market share. Cisco answered the challenge
Premium OSI model Ethernet Data Link Layer
DATA COMMUNICATION (Basics of data communication‚ OSI layers.) K.K.DHUPAR SDE (NP-II) ALTTC ALTTC/NP/KKD/Data Communication 1 Data Communications History • 1838: Samuel Morse & Alfred Veil Invent Morse Code Telegraph System • 1876: Alexander Graham Bell invented Telephone • 1910:Howard Krum developed Start/Stop Synchronisation ALTTC/NP/KKD/Data Communication 2 History of Computing • 1930: Development of ASCII Transmission Code • 1945: Allied Governments develop the First Large Computer
Premium OSI model Data transmission
Computer Science Quiz Questions With Answers - Multiple Choice 1- IC chips used in computers are usually made of 1. Lead 2. Silicon 3. Chromium 4. Gold Answer: Silicon 2- One kilobyte is equal to 1. 1000 bytes 2. 1024 bytes 3. 100 bytes 4. 1023 bytes Answer: 1024 3- Which of the following is not an example of Operating System? 1. Windows 98 2. BSD Unix 3. Microsoft Office XP 4. Red Hat Linux Answer: Microsoft Office XP 4- Which supercomputer is developed by
Premium Binary numeral system Computer
............................................................................................ 3 Cisco Security Management Tools ........................................................................................................... 4 Control of Data ......................................................................................................................................... 4 Security Policy............................................................................................
Premium IP address Security