2022

2 Minutes
Tech

Memory

An information storage device is a memory. Computer memory can be divided into two main groups – internal and external memory. The internal memory includes:

Random access memory (RAM);
cache memory;
Permanent storage device (ROM).

The external ones include:

hard drives;
floppy disks;
flash cards;
streamers;
Optical discs (CD or DVD).

The internal memory is usually volatile, and the external one is non-volatile, respectively, i.e. data can be stored in the internal memory only if there is power. Because of […]

Read More
2 Minutes
Software

External memory

Hard drive. Hard disk drives (hard drives) are designed for permanent storage of information used when working with a computer: operating system programs, frequently used software packages, document editors, etc. (Fig. 6).

Disk capacity.For the user, hard disk drives differ from each other primarily in their capacity, i.e., how much information is placed on the disk. Now computers are mostly equipped with hard drives of 80 GB or more.

The speed of […]

Read More
1 Minute
Programming

Connecting devices

Between the individual components of the computer, data is transmitted through a special means of communication – a bus, which is a complexly organized group of conductors.

Only the processor and RAM are connected directly to the bus. Other devices are connected to it using special matching devices – controllers. Some of them (for example, the keyboard controller and disk controllers) are mounted directly on the motherboard. Others are located on […]

Read More
2 Minutes
Hardware

Video card

The video adapter (video controller, video card) is designed to work in graphical mode. The main task of a modern video card is to support three-dimensional, three-dimensional graphics (3D). The additional possibility of video cards – TV tuner – reception of a television signal will never hurt. Video cards can be basically divided into two types: these are built-in (integrated) video adapters and the video cards themselves.

The capabilities of the […]

Read More
1 Minute
Hardware

Input devices

A keyboard is a device designed to enter information from a user into a computer. The modern keyboard consists of 104 keys reinforced in a single case (Fig. 10). The keyboard keys are divided into six groups:

Alphanumeric.

Special.

Cursor controls.

Functional.

Auxiliary.

Additional.

Mouse – manipulator for entering information into the computer (Fig. 11).It is necessary to work with graphics packages, drawings, when developing diagrams and when working in new operating systems. It is also desirable […]

Read More
7 Minutes
Hardware

Oracle Business Intelligence Suite Enterprise Edition

On March 1, 2007, a technology conference “Oracle Business Intelligence. Data warehouses, analytical systems”. The central event at the conference was the announcement of the release of Oracle Business Intelligence Suite Enterprise Edition 10g Release 3 (Oracle Business Intelligence Suite EE), a new version of a multifunctional, standards-based set of infrastructure and business analysis tools.

Since the product seemed to me quite curious, and there was no information about it in […]

Read More
3 Minutes
Programming

Kaspersky Open Space Security – a new concept of network protection

Kaspersky Lab has introduced a new concept for protecting corporate networks – Kaspersky Open Space Security, and also announced the release of commercial versions of three products from the new generation corporate line created in accordance with this concept. The list includes Kaspersky Anti-Virus 6.0 for Windows Workstations, Kaspersky Anti-Virus 6.0 for file servers running Windows, as well as a convenient tool for managing antivirus solutions – Kaspersky Administration Kit […]

Read More
6 Minutes
Software

Expert PHP Editor

You probably wrote your first PHP code in a standard notepad, which is available in Windows. Most likely, it was something like an echo of “Hello, world” or an echo of phpinfo(). After that, you started your HTTP server protocol (most likely, it was a properly configured Apache), opened a browser window, and wrote in the address input line http://локальный and we enjoyed the result of this script.

I agree, we […]

Read More
8 Minutes
Tech

mobile internet is easy!

Today, almost everyone of us has a mobile phone: someone is the owner of a smartphone or a communicator, and someone has enough of an ordinary tube. But not every owner of a mobile miracle at the turn of the millennium imagines what potential lies in a small plastic box stuffed with electronics. Today we will talk about the possibilities of accessing the Internet via conventional and “smart” mobile phones, […]

Read More
2 Minutes
Hardware

Semonitor – software package for website promotion and optimization

Semonitor is a website optimization program. It consists of a set of utilities (modules), each of which is tailored to a particular SEO task.

the module “Determining positions”

Checking the site’s positions in search engines is almost an everyday task of every optimizer. Positions can also be checked manually, however, if you have several dozen keywords and 5-7 search engines that need to be monitored, then this process will be very tedious. […]

Read More