Title of Article: How PCs Work
Author : Jeff Tyson
URL : http://computer.howstuffworks.com/pc.htm
Abstract:
Personal Computer (PC) is a small, inexpensive computer whose central processing unit is a microprocessor. It is designed for an individual user, and popularly use at home for playing games. Businesses use personal computers for word processing, accounting, and desktop publishing, running spreadsheet and database management applications.
The author discussed the main and other internal components of a personal computer. Although personal computers are designed as single systems, ways on how to connect it to the outside world to form a network was included. The article also touches topics on powering up, operating system and future of personal computers.
Three things I learned from my reading assignments:
1. Learned that central processing unit (CPU), Memory (RAM random access memory, ROM read only memory, BIOS basic input/output system, Caching and Virtual memory) are the main components of PC.
2. Knew other internal components like the motherboard, power supply, hard disk, operating system, Integrated Drive Electronics (IDE) Controller, peripheral component interconnect (PCI) bus, SCSI small computer system interface, AGP accelerated graphics port, sound card, and graphic card.
3. Understand how computers connect to the outside world in three different ways: Input/Output, Ports, and Internet/Network.
Implications on me and my work:
Computers are the most important partner of librarians nowadays. I found this equipment very useful especially that I am working alone. Having this in the library and with CDS-ISIS database installed in it relieved me so much from making all the book and periodical card indexes. It saves so much time, but still cannot replace a librarian.
Wednesday, July 9, 2008
WHY IRS NEED TO BE EVALUATED PRIOR TO APPLICATION AND CRITERIA USED FOR EVALUATION
Title of Article: Reflections of Information Retrieval Evaluation
Author : Mei-Mei Wu and Diane H. Sonnenwald
URL : http://pnclink.org/annual/annual1999/1999pdf/wu-mm.pdf
Abstract:
The paper reviews major issues of IR evaluation in the systems and user paradigms, and discusses the strengths and weaknesses of both paradigms. The paradigms are synthesized in a new proposed framework for IR evaluation. The proposed framework is based on attributes that have shown to influence adoptions of innovations and criteria and measures for this attributes are suggested.
Three things I learned from my reading assignments:
The attributes used for proposed evaluation framework are: relative advantage, compatibility, complexity, triability, and observability.
The criteria used are: system relevance, topical relevance, speed, economic gain, motivational relevance, organizational relevance, social relevance, usability, cognitive relevance, situational relevance, ease of experimentation, and degree of demonstration.
The measures used are: recall and precision, source contents (type of coverage), system response time, cost benefit analysis, meet users expectations, meets organizations expectations, meets society’s expectations, compatibility with public policy, task completion time, error rate, error correction time, task completion rate, user satisfaction, user satisfaction in problem or work contexts, availability, training time, & other start up costs, cost of observation.
Implications on me and my work:
The evaluation framework in this reading will serve as guidelines on our plan to digitize the researches of the medical consultants, fellows, and resident physicians at the National Kidney and Transplant Institute hospital.
Author : Mei-Mei Wu and Diane H. Sonnenwald
URL : http://pnclink.org/annual/annual1999/1999pdf/wu-mm.pdf
Abstract:
The paper reviews major issues of IR evaluation in the systems and user paradigms, and discusses the strengths and weaknesses of both paradigms. The paradigms are synthesized in a new proposed framework for IR evaluation. The proposed framework is based on attributes that have shown to influence adoptions of innovations and criteria and measures for this attributes are suggested.
Three things I learned from my reading assignments:
The attributes used for proposed evaluation framework are: relative advantage, compatibility, complexity, triability, and observability.
The criteria used are: system relevance, topical relevance, speed, economic gain, motivational relevance, organizational relevance, social relevance, usability, cognitive relevance, situational relevance, ease of experimentation, and degree of demonstration.
The measures used are: recall and precision, source contents (type of coverage), system response time, cost benefit analysis, meet users expectations, meets organizations expectations, meets society’s expectations, compatibility with public policy, task completion time, error rate, error correction time, task completion rate, user satisfaction, user satisfaction in problem or work contexts, availability, training time, & other start up costs, cost of observation.
Implications on me and my work:
The evaluation framework in this reading will serve as guidelines on our plan to digitize the researches of the medical consultants, fellows, and resident physicians at the National Kidney and Transplant Institute hospital.
BOOLEAN SEARCH
Title of Topics : Boolean Searching
: Boolean Logic: The key to electronic Searching
: How to Run a Boolean Search
Publishers : UK Official Publications
: Pierce College Libraries
: Career Builder
URL : http://www.fuzeqna.com/careerbuildersca/consumer/kbdetail.
asp?kbid=300
: http://www.pierce.ctc.edu/library/quicktips/boolean.pdf
: http://www.ukop.co.uk/help_boolean_searc_aspx
Abstract:
Boolean operators are name after George Boole, an Englishman who invented it in mid 1800. It is a way of searching electronic databases that allows you to indicate relationships between search terms by using AND, OR, and NOT.
The topics showed that the AND operator limits searches by telling the computer to find items about two or more distinct concepts, the OR operator expands searches by telling the computer to find items that include any of the search terms, and the NOT operator restricts searches by telling the computer to reject items that include certain terms.
Three things I learned from my reading assignments:
1. I learned other options of Boolean operators like symbols & for AND,
for OR, and ^ for NOT.
2. Other operators like BETWEEN, WITHIN, ADJ, for AND ; ( ) for OR; and BUT for NOT
3. Truncation symbols (?) (*) (**) for speed typing, and simple and advance Boolean search.
Implications on me and my work:
I used Boolean operators in my searches, but I found out that some doctors are still dissatisfied with the outputs. From that experience I thought of another strategy on how to come up with what they really wanted. I started analyzing the topics of their research and if it’s too general, ask the limitations of the research topic, a little information about there patients whether it is a male or female, young or adult, and the procedures he is going to do. From that time on searching and retrieving using Boolean operators went on smoothly.
: Boolean Logic: The key to electronic Searching
: How to Run a Boolean Search
Publishers : UK Official Publications
: Pierce College Libraries
: Career Builder
URL : http://www.fuzeqna.com/careerbuildersca/consumer/kbdetail.
asp?kbid=300
: http://www.pierce.ctc.edu/library/quicktips/boolean.pdf
: http://www.ukop.co.uk/help_boolean_searc_aspx
Abstract:
Boolean operators are name after George Boole, an Englishman who invented it in mid 1800. It is a way of searching electronic databases that allows you to indicate relationships between search terms by using AND, OR, and NOT.
The topics showed that the AND operator limits searches by telling the computer to find items about two or more distinct concepts, the OR operator expands searches by telling the computer to find items that include any of the search terms, and the NOT operator restricts searches by telling the computer to reject items that include certain terms.
Three things I learned from my reading assignments:
1. I learned other options of Boolean operators like symbols & for AND,
for OR, and ^ for NOT.
2. Other operators like BETWEEN, WITHIN, ADJ, for AND ; ( ) for OR; and BUT for NOT
3. Truncation symbols (?) (*) (**) for speed typing, and simple and advance Boolean search.
Implications on me and my work:
I used Boolean operators in my searches, but I found out that some doctors are still dissatisfied with the outputs. From that experience I thought of another strategy on how to come up with what they really wanted. I started analyzing the topics of their research and if it’s too general, ask the limitations of the research topic, a little information about there patients whether it is a male or female, young or adult, and the procedures he is going to do. From that time on searching and retrieving using Boolean operators went on smoothly.
Monday, July 7, 2008
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