2016-09-30 23:29
Tape Drives
Although corporate data centers still use tape drives for backing up, tape drives are no longer a mainstream technology for home and small business PCs, if indeed they ever were… Read More
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optical drives
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The No. 1 Ninja computinfo is a basic blog for computer information and technology for students and individuals researchers of computer information
2016-09-30 08:09
USB Flash Drives
USB flash memory drives are known by many names, both generic and trademarked. These devices are sometimes called keychain drives, watch-fob drives, key drives, pen drives… Read More
2016-09-29 14:41
Removable Hard Drive Enclosures
Frame/carrier removable hard drive enclosures are actually just modified drive bays that allow a standard hard drive mounted in a carrier assembly to be inser… Read More
2016-09-28 21:08
External Drive Enclosures
You don’t have to buy an external hard drive; you can roll your own. External drive enclosures are an economical alternative to commercial external hard drive… Read More
2016-09-28 08:31
External Hard Drives
External hard drives are external peripherals that comprise a standard desktop or notebook hard drive contained within a portable enclosure that provides one or more typ… Read More
2016-09-27 11:29
Uses for Removable Storage
The potential uses of external and removable storage devices are as many and as varied as the people who use them. Here are just a few:
Expanding storage on noteb… Read More
2016-09-27 11:01
External Storage Devices
Adding an external or removable storage device is an easy, inexpensive way to supplement the storage of your PC. By definition, external storage devices do not requi… Read More
2016-09-23 20:46
Optical Drive Troubleshooting
Optical drives generally work or they don’t. Assuming the drive is installed and configured properly initially, it should be problem-free throughout its s… Read More
2016-09-23 18:42
Installing an Optical Drive
External optical drives are “installed” simply by connecting them to a USB or FireWire port, as appropriate, and connecting power. Internal optical dr… Read More
2016-09-23 13:48
Optical Disc Types
All mainstream optical discs, from the oldest CDs to the most recent high-capacity DVDs, are based on the original CD specification. The dimensions of a standard CD or DVD… Read More
2016-09-23 02:24
Optical Drive Performance
Optical drive speeds are specified using an “X-factor.” The earliest CD-ROM drives transferred data at a constant 150 KB/s, the same rate used by audio… Read More
2016-09-22 23:12
Optical Drive Types
There are several types of optical drives available. Some can use only CDs, which typically store about 700 MB of data. Other optical drives can use DVDs, which typically… Read More
2016-09-22 22:42
Optical Drives
Replacing your optical drive is a fast, easy, inexpensive way to upgrade the capabilities of an older system. And many recent systems include optical drives with limited capab… Read More
2016-09-22 18:49
Hard Drive Troubleshooting
Problems that occur when you have just installed a hard drive are almost always a simple matter of a bad or incorrectly connected cable, incorrect jumper settings… Read More
2016-09-19 23:33
PIO Mode Versus DMA Mode
ATA defines two classes of transfer mode, called PIO Mode (Programmed I/O Mode) and DMA Mode (Direct Memory Access Mode). PIO mode transfers are much slower and requ… Read More
2016-09-19 21:49
Installing a Hard Drive
The general procedures for installing any hard drive are similar, but the exact steps and the sequence of steps vary depending on the type of drive you are installi… Read More
2016-09-19 14:56
Choosing a Hard Drive
The good news about choosing a hard disk is that it’s easy to get a good one. The brand we generally use and recommend, Seagate Technology (http://www.seagate.com… Read More
2016-09-19 13:31
Working on Computers
Popping the lid of a PC for the first time can be pretty intimidating, but there’s really no need for concern. There’s nothing inside that will hurt you, oth… Read More
2016-09-19 08:15
Hard Drives
Replacing the original hard disk or adding a hard disk is one of the most common upgrades. It’s easy to do and a very cost-effective way to extend the life of a PC. This se… Read More
2016-09-19 08:02
Internal computer bus interfaces
The internal computer bus interface defines the physical and logical means by which internal drives (such as hard disks, optical drives, …) connects t… Read More
2016-09-19 00:03
Troubleshooting Computer Memory
As electronic devices with no moving parts, memory modules seldom malfunction if they are installed properly. When problems do occur, they may be as obvious a… Read More
2016-09-18 23:12
Installing Computer Memory
Installing memory modules is straightforward. Most recent motherboards automatically detect installed memory modules regardless of the slot they occupy, but it is… Read More
2016-09-18 21:32
Choosing Computer Memory
When you buy memory to upgrade a system, consider the following issues:
Brand matters.
Brand name is important for memory. In our 20+ years of working on PCs, we re… Read More
2016-09-18 20:46
In addition to memory type, speed, and timings, there are several other issues to consider in choosing proper memory for your system. We’ll examine each of those issues in the followin… Read More
2016-09-17 09:04
Computer System Cleaning
Dirt is the main enemy of PCs. Dirt blocks air flow, causing the system to run hotter and less reliably. Dirt acts as thermal insulation, causing components to overh… Read More
2016-09-17 08:05
Computer System Maintenance
Airlines, trucking companies, and other large organizations devote much more time, money, and effort to cleaning and preventative maintenance than they do to repa… Read More
2016-09-17 07:35
General Computer Repair Procedures
With the hand tools and utilities described in the preceding sections, you have everything you need to upgrade or repair a PC except for the new components… Read More
2016-09-16 22:14
Hand Tools for Computer Repair
Despite those snazzy-looking PC toolkits you see anywhere PC components are sold, you really don’t need much in the way of tools to work on a standard PC… Read More
2016-09-16 21:23
Rules for Upgrading Computers
We’ve upgraded and repaired hundreds of systems over the years, and learned a lot of lessons the hard way. Here are the rules we live by. We’ll admi… Read More
2016-09-16 20:04
A Motherboard Tour
A motherboard is so complex and has so many components and connections that it can be overwhelming to someone who is not used to working inside PCs. As is true of many thi… Read More
2016-09-16 19:57
Computer Troubleshooting
Your first PC repair or upgrade can be pretty intimidating. What if it doesn’t work? Worse still, what if the PC goes up in flames the first time you turn it o… Read More
2016-09-16 18:48
Choosing Computer Components
Choosing computer hardware for repair and upgrades requires quite a bit of research and advice. sells parts for most Apple computers, and has an active community… Read More
2016-09-16 12:57
Popular Computer Upgrades
The most popular upgrades fall into one or more of the following categories:
Feature upgrades add capabilities to your PC, such as DVD burning, video capture, or wi… Read More
2016-09-16 09:07
Computer Upgrading vs Repairing vs Buying New
With entry-level PCs selling for less than $500 and fully equipped mainstream PCs selling for $1,200, you might wonder if it’s even worthw… Read More
2016-09-10 22:32
Introduction to Microsoft Word 2007 Lesson 1
Here am going to explain all in the Microsoft Word Application the Image you are seeing right above is the main window of Microsoft Word window… Read More
2016-09-09 20:48
Microsoft Word 2007 Tutorial—Free
Lesson 1: Getting Familiar with Microsoft Word 2007 for Windows
Microsoft Word is a word processing software package. You can use it to type letters… Read More
2016-09-09 09:27
1. Google Glass
Augmented Reality has already gotten into our life in the forms of simulated experiment and education app, but Google is taking it several steps higher withGoogle Glass. Theo… Read More
2016-09-06 20:31
In electronics and particularly computing, a jumper is a short length of conductor used to close a break in or open, or bypass part of, an electrical circuit. Jumpers are typically used to… Read More
2016-09-06 07:05
USB is a serial bus. It uses 4 shielded wires: two for power (+5v & GND) and two for differential data signals (labelled as D+ and D- in pinout).
In a USB data cable Data+ and Data- sign… Read More
2016-09-04 20:10
As a computer technician, my clients frequently ask me “Why the computer viruses are created?”, especially after I have been called out to remove a virus from their computer. T… Read More
2016-09-04 18:21
Setup your Java Development Environment in Windows 7 (JAVA_HOME,ANT_HOME,MAVEN_HOME, SVN,Git) for newbies
*UPDATE: I have changed the download links for some of the libs, since updated ve… Read More
2016-09-04 15:38
The best top 11 Free IDE for Java Coding, Development & Programming
What Java IDE is good for programming?
1 2 3 4 5 6 7 8 9 10 11
In this article I will be taking a look at 11 differen… Read More
2016-09-02 23:24
The Microsoft Office Button has replaced File in the Menu Bar. In the upper left corner of your Access 2007 screen you will see a button similar to the image on the right. This i… Read More
2016-09-02 23:07
Since you have already “named” your Report (State Report), move your cursor over the State Report Tab and click the RIGHT mouse button. When the drop down menu appears, cli… Read More
2016-09-02 21:02
New Report Design Tools Tab/Ribbon in Access 2007
In addition to the change to the Design View, you will see that the Home Tab/Ribbon is replaced by a Report Design View Tab/Ribbon. I… Read More
2016-09-02 01:24
This Report Wizard menu screen asks if you want to add Grouping. Grouping simply “groups” records by an item in the report you are designing. We’ll group by sta… Read More
2016-09-01 00:24
Reports can be very complex. In this tutorial we’ll cover the very basic steps of creating Reports. A good manual or some knowledgeable assistance will be essential to mast… Read More
2016-08-31 00:36
New to Access 2007 – A Filter/Sort Arrow for each Field!
In the image on the right we clicked the small down arrow to the right of State. A drop down Filter/Sort menu appeared!&n&hell…Read More
2016-08-31 00:05
If you are not in the Query Design Screen, you’ll need to be in that view. So, go to the Design Screen (bottom Page 28). Notice that the third row, in the lower half of the… Read More
2016-08-30 23:57
It took a lot of “clicks” to get to Print Preview. So, let’s add the Print Preview button to our Quick Access Toolbar at the top of the screen. Then all we’ll h… Read More
2016-08-29 17:49
Important
To record enough information so that you can see the power of Access database does enter 24 or more records now. You may use either Form View or Datasheet View.
This is what… Read More
2016-08-29 17:05
Form View and Datasheet View
You are now ready to continue entering the data in the Datasheet View.
As indicated previously, you have a choice to enter your data. You can use the Data… Read More
2016-08-29 16:30
If you decide to Exit Access 2007, and then return to continue the tutorial, refer to the instructions at the beginning of this tutorial (Page 1) to open Access again.
A neat thing about Ac… Read More
2016-08-29 16:03
Anytime you need to leave your database, click the Microsoft Office Button in the upper left corner of your Access screen, then click Exit Access – in the lower right corner of the men… Read More
2016-08-29 15:51
Widening Columns in Datasheet View
To widen columns so you can see the Field Names in the Datasheet View you will need to move your cursor over the “line” between two Field Names… Read More
2016-08-25 11:20
Click-in each area (to the right of the words) as you read about it below
Field Size Is currently set to 255 characters. That’s pretty large for a name.&n&hell…Read More
2016-08-24 17:11
Data Type
Text You may type in any alphabetical/numerical data that you desire – up to a maxi… Read More
2016-08-24 16:53
Creating a Table
When you click the Create button your Access 2007 screen will change to the image below. This is the “new look” in 2007 Office. You will now s… Read More
2016-08-24 08:31
Creating a Database using Access 2007
Starting Access 2007
Double click on the Access 2007 icon on the Windows desktop (see right), or click-on the Start button in the lower le… Read More
2016-08-24 06:15
WHAT IS DATABASE?
A Database is a collection of information related to a particular subject or purpose, such as tracking customer order or maintain students records.
A Database can also be… Read More
2016-08-22 18:34
Computer for everyone you must read
In the world today, computer has taken over every activity. There is nothing that you are doing that does not involve computer. Many people sees computer… Read More
2016-08-22 08:05
What is Processor?
Processor is known as the main brain of computer which is in charge of handing or controlling all the devices on the motherboard.
Processor is also located itself on the… Read More
2016-08-22 07:57
What is Motherboard?
Motherboard is made of fibre glass, and it is made of two colours blue or brown in fibre glass. Motherboard is made to hold every electronic elements that computer need… Read More
2016-08-22 07:55
Your work as Network Engineer
If you are of solving problems, network engineer is your work, If you want to work with computers. This work is also known as network administrator, build, and… Read More
2016-08-22 07:51
The Standard EIA /TIA 568 (A and B)
here am going to list most of other networking cables and colour codes on how to install them and their speed.
Straight Cable Connector
White green to Wh… Read More
2016-08-22 07:47
5 Types Computer Engineer Tools
Computer engineers have a number of tools at their disposal.
The job of a computer engineer is always changing with new problem and new challenges ever… Read More
2016-08-22 00:55
Making a Straight Cable
For you to make a straight cable, the tips must be crimped typically the same way at each end by respecting the twisted pair size.
The Code used in all:
Orange whit… Read More
2016-08-22 00:18
Making a Crossover Cable
For a crossover cable, you have to swap 1(Orange white) with 3(Green white), and 2(Orange ) with 6(Green ), in the above list which will give you
Green white… Read More
2016-08-21 23:41
How to Crimp a RJ45 Cable
The RJ45 cable is a standard cable which has four twisted pairs of colours. It is easy to crimp a RJ45 cable and make it into a straight cable or cross the cable a… Read More
2016-08-21 20:55
How to use a networking cable Tester
A network cable tester is a device that is designed to verify whether the Ethernet computer network cable is capable of transferring data from point 1 t… Read More
2016-08-19 13:32
Advantage and disadvantage of computer
Given the fact that our world is generated by computers, including enotes; this might represents a large advantage. The presence of computers demands a… Read More
2016-08-19 09:20
LAN Technologies and Bandwidth
Ethernet … Read More
2016-08-19 09:05
Advantages of LANs
here am going to explain the 3 types of advantages of LAN
Hardware just like printers can be shared so personality’s workstations may not need their own printer. Whe… Read More
2016-08-19 09:04
Characteristics of LAN
they are 3 types of Characteristics of LAN which am going to list below
Topology: this is a geometric arrangement of devices on the network , devices can be arranged i… Read More
2016-08-19 08:54
Computer Monitor Cables
Computer cables are those cables you can used to connect peripherals to other components to get what you need or to transfer data from one place to another.
Types of… Read More
2016-08-19 08:46
Data
Data: is a collection of facts, such as values or measurement. It can be numbers, words, measurements, observations, or even just descriptions of things. And there are two types of main… Read More
2016-08-19 08:46
Disadvantages of LANs
Printing maybe slow, as a result of a lot of served by only one or two printers, long printing roll may take place.
A virus can spread more easily. If a virus gets into… Read More
2016-08-19 08:44
Network
Diagram of a Network:
Network is a computer with minimal memory disk storage and processor power signed to connect to a network especial the internet. And their designs is by… Read More
2016-08-19 00:17
Advantages of WANs
These are exactly to that of LANs except the scale of sharing and so on becomes for greater and can be word wide.
Disadvantages of WANs
Also these are similar to those of… Read More
2016-08-18 22:48
Keys for Selecting Text
Shift+ page up=select everything between the cursor upward.
Shift+ page down=select everything between the cursor downward.
Shift+Home=select everything between the… Read More
2016-08-15 17:18
Introduction
By definition the Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Pro… Read More
2016-08-15 17:12
What Is A Home Network?
A home network is more or less your internal network at your house that connects all of your computers to each other as well as the internet using a router either in… Read More
2016-08-15 17:09
Introduction
A peripheral is a piece of computer hardware that is added to a computer in order to expand its abilities. The term peripheral is used to describe those devices that are op… Read More
2016-08-15 17:04
Introduction
Computer Hardware is the physical part of a computer, as distinguished from the computer software that executes or runs on the hardware. The hardware of a computer is infre… Read More
2016-08-15 16:51
Introduction
The Internet contains an unbelievable amount of information, which is really not all that useful unless you can find what you’re looking for. After all, it’s not th… Read More
2016-08-15 07:51
Introduction
Booting is a startup sequence that starts the operating system of a computer when it is turned on. A boot sequence is the initial set of operations that the computer performs w… Read More
2016-08-12 16:08
What is bandwidth?
The definition of bandwidth is the maximum data-carrying capability in devices. This basically means how much data can go across to you computer at a time. The more bandw… Read More
2016-08-12 15:43
Objectives
Learn about emergining advances in information technology
What to do
This project will be a running project throughout the entire year. Your job is to research articles about n… Read More
2016-08-11 00:27
What Is The Internet?
In the broadest terms, people like to view the Internet as a cloud, you put your data in one place, it comes out the place you want it to on the other side. In reality… Read More
2016-08-11 00:26
Network Security
What is network security?
By definition Network Security is the protection of networks and their services from unauthorized modification, destruction, or disclosure, and pr… Read More
2016-08-09 09:19
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-09 08:51
1980
– First hard disk drive (HDD)
Seagate Technology created the first hard disk drive for microcomputers, the ST506. The disk held 5 megabytes of data, five times as muc… Read More
2016-08-09 08:47
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-09 08:35
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-08 13:20
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-08 11:33
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-08 02:41
This section takes a look at how ICT and technology has advanced throughout history. On the timeline you will see when major ICT and technology breakthroughs were made including the year Mic… Read More
2016-08-08 00:44
Your mother was wrong. Video games aren’t bad for you. They’re actually making your life better.
Despite hand-wringing over a supposed connection between violence and video g… Read More
2016-08-08 00:08
Data sent to and read from the hard drive is interpreted by the disk controller, which tells the hard drive what to do and how to move the components within the drive. When the operating sy… Read More
2016-08-07 23:49
A hard disk drive:sometimes abbreviated as Hard drive, HD, or HDD is a non-volatile memory hardware device that permanently stores and retrieves information. There are many variations… Read More
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