What does the programme Microsoft Excel 2007 (2010). Tables and calculation tables. Construction and setting diagrams.
Included in Office 2007. This release was a major upgrade from the previous version. Similar to other updated Office products, Excel in 2007 used the new Ribbon menu system. This was different from what users were used to, and was met with mixed reactions. One study reported fairly good acceptance by users except highly experienced users and users of word processing applications with a classical WIMP interface, but was less convinced in terms of efficiency and organisation.[76] However, an online survey reported that a majority of respondents had a negative opinion of the change, with advanced users being "somewhat more negative" than intermediate users, and users reporting a self-estimated reduction in productivity Table is one of the most powerful Excel features that is often overlooked or underestimated. Converting data to a table can spare you the headache of creating dynamic named ranges, updating formula references, copying formulas across columns, formatting, filtering and sorting your data SmartArt is a function within Microsoft Excel 2007 and 2010 that allows you to create quality diagrams that include cycles, list, hierarchies and many other types of professional diagrams.
This article describes how to create a diagram in Excel using Smart Art. A diagram that looks professional can be a very useful tool in promoting a point within an article, or to explain a concept without having to write a thousand words.
Name the anti-virus programs which are applied now on computers.
Antivirus or anti-virus software (often abbreviated as AV), sometimes known as anti-malware software, is computer software used to prevent, detect and remove malicious software.]
Antivirus software was originally developed to detect and remove computer viruses, hence the name. However, with the proliferation of other kinds of malware, antivirus software started to provide protection from other computer threats. In particular, modern antivirus software can protect from: malicious browser helper objects (BHOs), browser hijackers, ransomware, keyloggers, backdoors, rootkits, trojan horses, worms,malicious LSPs, dialers, fraudtools, adware and spyware.[2] Some products also include protection from other computer threats, such as infected and malicious URLs, spam, scam and phishing attacks, online identity (privacy), online banking attacks, social engineering techniques, advanced persistent threat (APT) and botnet DDoS attacks.
Describe is technologies of the parallel and distributed calculations. Wireless network technologies. Mobile applications.
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Parallel computing means that different activities happen at the same time. The term was mostly used in scientific computing (consumer computers until very recently simply were not parallel) where it typically means: spread out a single application over many many cores/processors/processes to get it done bigger/faster. Current big parallel computers have 100 thousand to a million parallel processors/cores/threads/whatever.
Distributed computing comes from the business world where you have distributed systems such as airline reservation systems, where many people access and modify the same data at the same time. The machinery involved here is typically much looser coupled, and the activities in a distributed system are typically far less synchronized. A wireless network is any type of computer network that uses wireless data connections for connecting network nodes[1]
Wireless networking is a method by which homes, telecommunications networks and enterprise (business) installations avoid the costly process of introducing cables into a building, or as a connection between various equipment locations.[2] Wireless telecommunications networks are generally implemented and administered using radio communication. This implementation takes place at the physical level (layer) of the OSI model network structure.[3]
Examples of wireless networks include cell phone networks, Wireless local area networks (WLANs), wireless sensor networks, satellite communication networks, and terrestrial microwave networks.[4]
A mobile app is a software application developed specifically for use on small, wireless computing devices, such as smartphones and tablets, rather than desktop or laptop computers.
Mobile apps are designed with consideration for the demands and constraints of the devices and also to take advantage of any specialized capabilities they have. A gaming app, for example, might take advantage of the iPhone's accelerometer.
Mobile apps are sometimes categorized according to whether they are web-based or native apps, which are created specifically for a given platform. A third category, hybrid apps, combines elements of both native and Web apps. As the technologies mature, it's expected that mobile application development efforts will focus on the creation of browser-based, device-agnostic Web applications.
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What is Cloud Computing?
Cloud computing is a general term for the delivery of hosted services over the internet.
Cloud computing enables companies to consume a compute resource, such as a virtual machine (VMs), storage or an application, as a utility -- just like electricity -- rather than having to build and maintain computing infrastructures in house.
Cloud computing boasts several attractive benefits for businesses and end users. Three of the main benefits of cloud computing are:
Self-service provisioning: End users can spin up compute resources for almost any type of workload on demand. This eliminates the traditional need for IT administrators to provision and manage compute resources.
Elasticity: Companies can scale up as computing needs increase and scale down again as demands decrease. This eliminates the need for massive investments in local infrastructure which may or may not remain active.
Pay per use: Compute resources are measured at a granular level, allowing users to pay only for the resources and workloads they use.
Cloud computing deployment models
Cloud computing services can be private, public or hybrid.
Private cloud services are delivered from a business' data center to internal users. This model offers versatility and convenience, while preserving the management, control and security common to local data centers. Internal users may or may not be billed for services through IT chargeback.
In the public cloud model, a third-party provider delivers the cloud service over the internet. Public cloud services are sold on demand, typically by the minute or hour. Customers only pay for the CPU cycles, storage or bandwidth they consume. Leading public cloud providers include Amazon Web Services (AWS), Microsoft Azure, IBM SoftLayer and Google Compute Engine.
Hybrid cloud is a combination of public cloud services and on-premises private cloud -- with orchestration and automation between the two. Companies can run mission-critical workloads or sensitive applications on the private cloud while using the public cloud for bursting workloads that must scale on demand. The goal of hybrid cloud is to create a unified, automated, scalable environment that takes advantage of all that a public cloud infrastructure can provide while still maintaining control over mission-critical data.
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Cloud computing service categories
Although cloud computing has changed over time, it has been divided into three broad service categories: infrastructure as a service (IaaS), platform as a service (PaaS) and software as a service (SaaS).
IaaS providers, such as AWS, supply a virtual server instance and storage, as well as application program interfaces (APIs) that let users migrate workloads to a virtual machine. Users have an allocated storage capacity and can start, stop, access and configure the VM and storage as desired. IaaS providers offer small, medium, large, extra-large and memory- or compute-optimized instances, in addition to customized instances, for various workload needs.
In the PaaS model, providers host development tools on their infrastructures. Users access these tools over the internet using APIs, web portals or gateway software. PaaS is used for general software development, and many PaaS providers will host the software after it's developed. Common PaaS providers include Salesforce.com's Force.com, AWS Elastic Beanstalk and Google App Engine.
SaaS is a distribution model that delivers software applications over the internet; these applications are often called web services. Microsoft Office 365 is a SaaS offering for productivity software and email services. Users can access SaaS applications and services from any location using a computer or mobile device that has internet access.
Cloud computing security
Security remains a primary concern for businesses contemplating cloud adoption -- especially public cloud adoption. Public cloud providers share their underlying hardware infrastructure between numerous customers, as public cloud is a multi-tenant environment. This environment demands copious isolation between logical compute resources. At the same time, access to public cloud storage and compute resources is guarded by account logon credentials.
Many organizations bound by complex regulatory obligations and governance standards are still hesitant to place data or workloads in the public cloud for fear of outages, loss or theft. However, this resistance is fading as logical isolation has proven reliable and the addition of data encryption and various identity and access management (IAM) tools has improved security within the public cloud.
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