CN1306423C - Write-disable device for preventing computer virus - Google Patents
Write-disable device for preventing computer virus Download PDFInfo
- Publication number
- CN1306423C CN1306423C CNB011186313A CN01118631A CN1306423C CN 1306423 C CN1306423 C CN 1306423C CN B011186313 A CNB011186313 A CN B011186313A CN 01118631 A CN01118631 A CN 01118631A CN 1306423 C CN1306423 C CN 1306423C
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- CN
- China
- Prior art keywords
- taboo
- write
- write device
- computer
- wafer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention provides a writing prohibiting device for preventing computer viruses, which is used for a computer, and the computer at least comprises a computer host board and a shell for accommodating the computer host board. The writing prohibiting device is respectively connected to a BIOS memory chip, a real time clock chip and a COMS chip of the computer host board for preventing arbitrary material writing action for the chips. The writing prohibiting device for preventing computer viruses is characterized in that the writing prohibiting device is arranged on the shell, and therefore, a user of the computer can conveniently enable the writing prohibiting device.
Description
Technical field
The invention relates to a kind of taboo write device that prevents computer virus, it is to be installed on the computer chassis about the operation start switch of prohibiting write device particularly.
Background technology
Known computer virus can be deleted (Erase) to the bios memory body on the computer motherboard at present, and makes computer to start shooting, or the data of COMS data and clock wafer (Realtime clock chip) is carried out destructive rewriting.In order to prevent the generation of this situation, as shown in Fig. 1, known computer motherboard 10, for example be provided with and prevent that bios memory body 10a from prohibiting jumper connection pin (Jumper) the switch 10b that writes, yet this set-up mode, the service manual that must understand earlier computer motherboard is write the jumper connection foot control for taboo and is transferred the explanation of establishing, and searches out correct taboo and write jumper connection foot control position, this is extremely inconvenient for general user, causes difficulty even.
Summary of the invention
The purpose of this invention is to provide and prevent computer virus, and can allow the user of computer can start (enable) this taboo write device very easily for wafer data re-writing device on the computer motherboard.
For reaching purpose of the present invention, the invention provides a kind of taboo write device that is used to prevent computer virus, this taboo write device is used in a computer, wherein this computer comprises a computer motherboard and a casing that is used for ccontaining this computer motherboard at least, wherein this taboo write device is connected to the bios memory body wafer of this computer motherboard, clock wafer (real time clock chip), the COMS wafer, be used to prevent arbitrarily to the above-mentioned action that waits wafer to write data, it is characterized in that: this taboo write device is to be installed in this casing, makes this taboo write device of startup (enable) that this computer user can convenience by this.
Description of drawings
Fig. 1 shows that known computer motherboard prevents the set-up mode synoptic diagram that bios memory body taboo is write.
Fig. 2 shows that the present invention prohibits the structural representation of write device.
Fig. 3 shows that the present invention prohibits the specific embodiment of write device.
Fig. 4 shows that the switch of prohibiting write device is installed in the synoptic diagram of casing.
Among the figure:
10 known computer motherboard 10a bios memory bodies
10b jumper connection foot control 20 is prohibited write device
The read/write signal of 20a bios memory body wafer
The read/write signal pin position of 20b BIOS clock wafer
The read/write letter pin position of 20c COMS wafer
The read/write signal pin position of 20d bios memory body wafer
The read/write signal pin position of 20e clock wafer
The read/write signal pin position of 20f COMS wafer
30 prohibit the write device 30 concrete examples of implementing
302,303,304 or lock
301 switches, 40 casings
Embodiment
For making the people who is familiar with this technology understand purpose of the present invention, feature and effect, now by following specific embodiment, and conjunction with figs., the present invention is illustrated in detail as the back:
Fig. 2 shows that the present invention prohibits the structural representation of write device.Prohibit write device 20 and connect a plurality of input signals respectively, wherein these a plurality of input signals are respectively former read/write (R/W) the signal 20a of computer motherboard bios memory body wafer, the former read/write signal 20c that is connected to computer motherboard clock wafer (realtime clock chip) of being connected to.Prohibit write device 20 and export a plurality of output signals respectively, wherein these a plurality of output signals are connected to read/write (R/W) signal pin (pin) 20d, the read/write signal pin position 20e of this clock wafer, the read/write signal pin position 20f of COMS wafer of this bios memory body wafer respectively.Startup (enable)/inefficacy (disable) signal of prohibiting write device 20 is in order to determine whether to open the write activity of above-mentioned wafer.
Fig. 3 shows that the present invention prohibits the specific embodiment of write device.Prohibit write device 30 and prohibit one of them specific embodiment of write device 20 for Fig. 2.Prohibit write device 30 and mainly be by three or 302,303,304 and switches 301 of lock (OR gate) and constitute, when switch 301 is placed in noble potential (Highlevel), start to prohibit and write function, this moment, no matter signal 20a, 20b, 20c be why, the output of three or lock (OR gate) 302,303,304 is all noble potential, that is pin position 20d, 20e, 20f be all noble potential, therefore waits wafer to prohibit to write to above-mentioned.When switch 301 was placed in electronegative potential (lowlevel), the taboo that lost efficacy was write function, opened above-mentioned wafer is write.
Fig. 4 shows that the switch of prohibiting write device is installed in the synoptic diagram of casing.The switch 301 of Fig. 3 is to be installed on the casing 40 of computer, for example can be installed in casing and approach the close position of power switch (figure show), the setting position of switch 301 mainly is to prohibit write device 20 as consideration with the startup (enable) that the user can convenience.
Switch 301 can use a tool mechanical contacts switch, semiconductor switch, an infrared telecontrol switch or the like as embodiment.
Though the present invention with a preferred embodiment openly as above; right its is not in order to limit the present invention; anyly be familiar with this operator; without departing from the spirit and scope of the present invention; when can being used for a variety of modifications and variations, do various change retouchings still in the determined protection domain of claim of the present invention.
Claims (6)
1. one kind is used to prevent computer virus taboo write device, this taboo write device is used in a computer, wherein this computer comprises a computer motherboard and a casing that is used for ccontaining this computer motherboard at least, wherein this taboo write device is connected to bios memory body wafer, clock wafer, the COMS wafer of this computer motherboard, be used for preventing from simultaneously arbitrarily above-mentioned wafer to be write the action of data, it is characterized in that: this taboo write device is installed in this casing, makes this taboo write device of startup that the user of this computer can convenience by this.
2. taboo write device as claimed in claim 1, wherein this taboo write device is electrically connected on read/write pin position, clock wafer read/write pin position, the COMS wafer read/write pin position of the bios memory body wafer of this computer motherboard respectively.
3. taboo write device as claimed in claim 1, wherein this taboo write device comprises a switch that is installed in this casing at least, and wherein this switch is used to start or lost efficacy to the action of the data that writes of above-mentioned wafer.
4. taboo write device as claimed in claim 3, wherein this switch is a tool mechanical contacts switch.
5. taboo write device as claimed in claim 3, wherein this switch is the semiconductor switch.
6. taboo write device as claimed in claim 3, wherein this switch is an infrared telecontrol switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011186313A CN1306423C (en) | 2001-06-05 | 2001-06-05 | Write-disable device for preventing computer virus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011186313A CN1306423C (en) | 2001-06-05 | 2001-06-05 | Write-disable device for preventing computer virus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1389791A CN1389791A (en) | 2003-01-08 |
| CN1306423C true CN1306423C (en) | 2007-03-21 |
Family
ID=4663327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011186313A Expired - Fee Related CN1306423C (en) | 2001-06-05 | 2001-06-05 | Write-disable device for preventing computer virus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1306423C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104573509B (en) * | 2013-10-21 | 2019-10-29 | 研祥智能科技股份有限公司 | System time means of defence and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241357Y (en) * | 1995-12-27 | 1996-11-27 | 云南教育学院数理教育分院 | Computer rigid disk write protection lock |
| US5844986A (en) * | 1996-09-30 | 1998-12-01 | Intel Corporation | Secure BIOS |
| CN1245927A (en) * | 1999-06-28 | 2000-03-01 | 李增胜 | Method for completely preventing viruses of CIH, etc. from damaging computer master control panel BIOS |
| CN2391239Y (en) * | 1999-08-17 | 2000-08-09 | 王启祥 | BOLS chip and CMOS parameter anti-virus destruction on main board of computer |
-
2001
- 2001-06-05 CN CNB011186313A patent/CN1306423C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2241357Y (en) * | 1995-12-27 | 1996-11-27 | 云南教育学院数理教育分院 | Computer rigid disk write protection lock |
| US5844986A (en) * | 1996-09-30 | 1998-12-01 | Intel Corporation | Secure BIOS |
| CN1245927A (en) * | 1999-06-28 | 2000-03-01 | 李增胜 | Method for completely preventing viruses of CIH, etc. from damaging computer master control panel BIOS |
| CN2391239Y (en) * | 1999-08-17 | 2000-08-09 | 王启祥 | BOLS chip and CMOS parameter anti-virus destruction on main board of computer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1389791A (en) | 2003-01-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070321 Termination date: 20110605 |