We have so far the are of hardware and cloncluded that hardware is something that we can see and touch.
In this week we will look at softwares and types of software.
Q1- What is software?
Computer software or just software, is a collection of computer programs and related data that provides the instructions for telling a computer what to do and how to do it
Q2-What is operating system software?
An operating system (OS) is a set of programs that manage computer hardware resources and provide common services for application software. The operating system is a vital component of the system software in a computer system
Q3- What is application software
Application software, also known as an application or an "app", is computer software designed to help the user to perform specific tasks. Examples include enter prizse , accounting softwares , office suites, graphic software and media players..
Q4- Can you install application softwares before system softwares and why?
No because system softwares are controling application softwares
Q5- Name four operating system softwares?
Linux
Windows Ce
Q6- Name ten application softwares?
Adobe Photoshop
Adobe FireWorks
Adobe Flash
Microsoft Word
Microsoft Exel
Microsoft Publisher
Front Page
GIMP
MS Paint
FireFox
Q7- What is a shareware application?
Shareware software is distributed at low (or sometimes no) cost, but
usually requires payment and registration for full legal use. Copies
are distributed on a trial basis. You are free to test the software,
see if it matches your needs, and decide whether it's a good
value. Order forms or advertisements included in the program or on the
distribution disk usually tell you how to register the program and
what fee is required. Registered users of a shareware program will
typically receive a printed manual, an updated copy of the software,
often with additional features, and the legal right to use the program
in their home or business.
Q8- What is freeware application?
Freeware is distributed at minimal cost, but in this case the
authors do not expect payment for their work. Typically, freeware
programs are small utilities or incomplete programs that authors
release for their potential benefit to others, but without support.
The author of a freeware program may still retain a copyright on its
contents and stipulate that others not modify the program or charge
significant fees for its use or distribution.
Q9- What is the diffrent between a shareware and and a freeware application?
"Freeware" generally means the software is available at no charge.
Freeware is not necessarily in the public domain; the author may choose
to give it away for free but wish to retain copyright... to prevent it
from being sold by a third party, for example, or to insist that
modified copies cannot be distributed because the author wants to retain
some kind of quality control.
Q10- What is public domain software?
Public domain software is software that has been placed in the public domain, in other words there is absolutely no ownership (such as copyright) of the intellectual property that the software represents.
Q11- What is commercial software?
Commercial software, or less commonly, payware, is computer software that is produced for sale or that serves commercial purposes.
Commercial software is most often proprietary software, but free software packages may also be commercial software.
Q12- What is the diffrent between commercial software and public software?
Commerical softwares is produced for sale and public softwares are the ones without copyright.
Wednesday, 28 March 2012
Wednesday, 21 March 2012
1.What is Ram and what is its function?
RAM (random access memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disc .RAM can be compared to a person's short-term memory and the hard disk to the long-term memory. The short-term memory focuses on work at hand, but can only keep so many facts in view at one time. If short-term memory fills up, your brain sometimes is able to refresh it from facts stored in long-term memory. A computer also works this way. If RAM fills up, the processor needs to continually go to the hard disk to overlay old data in RAM withnew, slowing down the computer's operation. Unlike the hard disk which can become completely full of data so that it won't accept any more, RAM never runs out of memory. It keeps operating, but much more slowly than you may want it to.
2 There are many different types of RAM. Provide a definition and a graphic of each of the RAM types listed below.
SRAM
SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed. Static RAM provides faster access to data and is more expensive than DRAM. SRAM is used for a computer's cache memory and as part of the access memory digital-to-analog converter on a video card.
DRAM
Dynamic random-access memory (DRAM) is a type of random-access memory that stores each bit of data in a separate capacitor within an integrated circuit.
The capacitor can be either charged or discharged; these two states are
taken to represent the two values of a bit, conventionally called 0 and
1. Since capacitors leak charge, the information eventually fades
unless the capacitor charge is refreshed periodically. Because of this refresh requirement, it is a dynamic memory as opposed to SRAM and other static memory.
FPM DRAM
Prior to newer forms of dynamic random access memory (DRAM), FPM DRAM (Fast Page Mode DRAM) was the most common kind of DRAM in personal computers. Page mode DRAM essentially accesses a row of RAM without having to continually respecify the row. A row access strobe (RAS) signal is kept active while the column access strobe(CAS) signal changes to read a sequence of contiguous memory cells. This reduces access time and lowers power requirements. Clock timings for FPM DRAM are typically 6-3-3-3 (meaning 3 clock cycles for access setup, and 3 clock cycles for the first and each of three successive accesses based on the initial setup).
RAM (random access memory) is the place in a computer where the operating system, application programs, and data in current use are kept so that they can be quickly reached by the computer's processor. RAM is much faster to read from and write to than the other kinds of storage in a computer, the hard disk, floppy disk, and CD-ROM. However, the data in RAM stays there only as long as your computer is running. When you turn the computer off, RAM loses its data. When you turn your computer on again, your operating system and other files are once again loaded into RAM, usually from your hard disc .RAM can be compared to a person's short-term memory and the hard disk to the long-term memory. The short-term memory focuses on work at hand, but can only keep so many facts in view at one time. If short-term memory fills up, your brain sometimes is able to refresh it from facts stored in long-term memory. A computer also works this way. If RAM fills up, the processor needs to continually go to the hard disk to overlay old data in RAM withnew, slowing down the computer's operation. Unlike the hard disk which can become completely full of data so that it won't accept any more, RAM never runs out of memory. It keeps operating, but much more slowly than you may want it to.
2 There are many different types of RAM. Provide a definition and a graphic of each of the RAM types listed below.
SRAMSRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed. Static RAM provides faster access to data and is more expensive than DRAM. SRAM is used for a computer's cache memory and as part of the access memory digital-to-analog converter on a video card.
DRAM
Dynamic random-access memory (DRAM) is a type of random-access memory that stores each bit of data in a separate capacitor within an integrated circuit.
The capacitor can be either charged or discharged; these two states are
taken to represent the two values of a bit, conventionally called 0 and
1. Since capacitors leak charge, the information eventually fades
unless the capacitor charge is refreshed periodically. Because of this refresh requirement, it is a dynamic memory as opposed to SRAM and other static memory.FPM DRAM
Prior to newer forms of dynamic random access memory (DRAM), FPM DRAM (Fast Page Mode DRAM) was the most common kind of DRAM in personal computers. Page mode DRAM essentially accesses a row of RAM without having to continually respecify the row. A row access strobe (RAS) signal is kept active while the column access strobe(CAS) signal changes to read a sequence of contiguous memory cells. This reduces access time and lowers power requirements. Clock timings for FPM DRAM are typically 6-3-3-3 (meaning 3 clock cycles for access setup, and 3 clock cycles for the first and each of three successive accesses based on the initial setup).
Subscribe to:
Posts (Atom)