Tuesday, October 6, 2009

COMPUTER SOFTWARE

1. Software also known as …………….

2. What is software?

3. What is function for software?

4. How many type of software? List it.

5. What is System Software?

6. How many type of System Software? List it.

7. Give two example of Operating System and two example of Utility Programme.

8. What is Application Software?

9. Give five example of Application Software.

Sunday, July 5, 2009

Types of computer

1. Workstation

A workstation is a high-end personal computer designed for technical or scientific applications. Intended primarily to be used by one person at a time, they are commonly connected to a local area network and run multi-user operating systems.


2.Desktop computer

Prior to the wide spread of PCs a computer that could fit on a desk was considered remarkably small. Today the phrase usually indicates a particular style of computer case. Desktop computers come in a variety of styles ranging from large vertical tower cases to small form factor models that can be tucked behind an LCD monitor. In this sense, the term 'desktop' refers specifically to a horizontally-oriented case, usually intended to have the display screen placed on top to save space on the desk top. Most modern desktop computers have separate screens and keyboards.

3.Laptop
A laptop computer or simply laptop, also called a notebook computer or sometimes a notebook, is a small personal computer designed for mobility. Usually all of the interface hardware needed to operate the laptop, such as parallel and serial ports, graphics card, sound channel, etc., are built in to a single unit. Most laptops contain batteries to facilitate operation without a readily available electrical outlet. In the interest of saving power, weight and space, they usually share RAM with the video channel, slowing their performance compared to an equivalent desktop machine.

4.Netbook
Netbooks are small portable computers in a "clamshell" design, that are designed specifically for wireless communication and access to the Internet. They are generally much lighter and cheaper than subnotebooks, and have a smaller display, between 7" and 9", with a screen resolution between 800x600 and 1024x768 but newer models feature higher resolution at up to 1280x768 like the Gigabyte M912X netbook. The operating systems and applications on them are usually specially modified so they can be comfortably used with a smaller sized screen, and the OS was in the start Linux, although most netbooks run one of the NT version, Windows XP or Windows Vista (For example Sony's Tablet Netbook). Some netbooks make use of their built in high speed Wireless connectivity to offload some of their applications software to Internet servers, through the principle of Cloud computing, as most have small solid state storage systems instead of hard-disks. Storage capacities were usually in the 4 to 16 GB range but have largely increased expanding up to 160GB for example the Gigabyte M912X and the MSI WInd U100 with units that have hard drives instead of solid state drives. One of the first examples of such a system was the original Eee PC.

Personal computer

A personal computer (PC) is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end user, with no intervening computer operator.

As of 2009, a personal computer may be a desktop computer, a laptop computer or a tablet computer. The most common current operating systems for personal computers are Microsoft Windows, Mac OS X and Linux, while the most common microprocessors are x86-compatible CPUs, ARM architecture CPUs and PowerPC CPUs. Software applications for personal computers include word processing, spreadsheets, databases, Web browsers and e-mail clients, games, and myriad personal productivity and special-purpose software. Modern personal computers often have high-speed or dial-up connections to the Internet, allowing access to the World Wide Web and a wide range of other resources.

A PC may be a home computer, or may be found in an office, often connected to a local area network (LAN). This is in contrast to the batch processing or time-sharing models which allowed large expensive systems to be used by many people, usually at the same time, or large data processing systems which required a full-time staff to operate efficiently.

Computer

A computer is a machine that manipulates data according to a set of instructions.

Although mechanical examples of computers have existed through much of recorded human history, the first electronic computers were developed in the mid-20th century (1940–1945). These were the size of a large room, consuming as much power as several hundred modern personal computers (PCs).[1] Modern computers based on integrated circuits are millions to billions of times more capable than the early machines, and occupy a fraction of the space.[2] Simple computers are small enough to fit into a wristwatch, and can be powered by a watch battery. Personal computers in their various forms are icons of the Information Age and are what most people think of as "computers". The embedded computers found in many devices from MP3 players to fighter aircraft and from toys to industrial robots are however the most numerous.

The ability to store and execute lists of instructions called programs makes computers extremely versatile, distinguishing them from calculators. The Church–Turing thesis is a mathematical statement of this versatility: any computer with a certain minimum capability is, in principle, capable of performing the same tasks that any other computer can perform. Therefore computers ranging from a mobile phone to a supercomputer are all able to perform the same computational tasks, given enough time and storage capacity.

Tuesday, June 30, 2009

Computer Lab Rules and Regulations

Computer Lab Rules and Regulations
Below are suggestion of rules and regulations for computer lab users.
1. Pupils are prohibited to enter the lab unless authorised by the teacher.
2. Scan diskettes before using them.
3. Report all problems related to the system to the teacher.
4. Do not attempt to repair or tamper with lab equipment.
5. Be responsible when using equipment, software and facilities in the lab.
6. Do not move any equipment from its original position.
7. Do not remove or load any software into the computer.
8. Do not change the settings in the computer.
9. Save all work in external storage device and not in the computer.
10. Do not bring in bags, food and drink into the lab.
11. Turn off the computer accordingly after use.
12. Switch off all power supplies before leaving the lab.
13. Internet facility is strictly for educational purposes only.
14. Teachers should record the use of computer lab in the lab log book.
15. All users should record the use of computers in the computer log book.
16. The Lab should be kept clean and tidy at all times

Skill-Based Approach-ICTL

Skill-Based ApproachSkill-Based Approach

The skill-based approach emphasizes student-centred activities with the teacher playing the dual role of instructor and facilitator. The teacher should:
• Provide hands-on guidance to pupils to help them acquire relevant skills
in each learning area
• Encourage pupils to develop their skills independently and systematically

Project-based Learning Approach
Project-based learning approach is student-centred. It focuses on individual or group activities that go on over a period, resulting in a final product,presentation or performance.For example, E-scrap books, multimedia presentations and simple applications. The product is focused on the learning areas and is integrated across the curriculum over subjects such as the English language, the Sciences and Environmental studies. In facilitating project-based activities, the teacher should;
• provide advice on project management procedures and task organisation
• monitor the progress of student projects
• give advice, tips and recommendations whenever needed
• assess the outcome of pupils’ work

Wednesday, June 24, 2009

ICTL

TEACHING AND LEARNING APPROACH
Appropriate teaching and learning approaches are essential to meet the learning objectives set out in the content specifications. The teacher acts as an instructor or a facilitator depending on the types of activities and the learning outcomes.
In imparting the ICT skills, pupils will produce products based on the learning outcomes. Pupils are able to start at any level according to their competency and progress.
Information and Communication Technology Literacy (ICTL) lessons should be conducted using the teaching and learning approaches stated below:
Knowledge-Based Approach
The knowledge-based approach in this Programme requires the teacher to act as instructor.
The teacher is required to:
• Introduce the field of study in terms of concept, definition and terminology.
• Show and demonstrate the procedures for managing computer laboratory, computer
hardware, computer software, network and the Internet.
• Provide instructional guidance which will form the fundamental basis for
pupils to grasp the content of the programme.
• Encourage pupils to seek other sources of information and references to
complete their projects when necessary.