If you are looking to gather more information about the switch hardware , then show version command comes into handy. One can get the below details
a) Switch Hardware Model and Version
b) Switch Software Image version
c) Switch uptime
d) Switch serial number and MAC address
Switch1> show version
Cisco IOS Software, C3750 Software
(C3750-IPSERVICESK9-M), Version 12.2(55)SE1,
RELEASE SOFTWARE (fc1)
Technical Support:
http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco
Systems, Inc.
Compiled Thu 02-Dec-10 07:46 by
prod_rel_team
Image text-base: 0x01000000,
data-base: 0x02F00000
ROM: Bootstrap program is C3750
boot loader
BOOTLDR: C3750 Boot Loader
(C3750-HBOOT-M) Version 12.2(44)SE5, RELEASE SOFTWARE
(fc1)
Switch2 uptime is 4 hours, 54
minutes
System returned to ROM by power-on
System image file is
"flash:/c3750-ipservicesk9-mz.122-55.SE1.bin"
cisco WS-C3750-48TS (PowerPC405)
processor (revision N0) with 131072K bytes of memory.
Processor board ID CAT1113NJQS
Last reset from power-on
3 Virtual Ethernet interfaces
48 FastEthernet interfaces
4 Gigabit Ethernet interfaces
The password-recovery mechanism is
enabled.
512K bytes of flash-simulated
non-volatile configuration memory.
Base ethernet MAC Address : 00:1B:81:38:4F:01
Motherboard assembly number : 13-9680-10
Power supply part number : 341-0018-02
Motherboard serial number : CAT111259UV
Power supply serial number : DYH1105B27H
Model revision number : N0
Motherboard revision number : B0
Model number : WS-C3750-48TS-S
System serial number : CAT1113NJQS
SFP Module assembly part number :
72-7757-03
SFP Module revision Number : A0
SFP Module serial number : CAT141162TY
Top Assembly Part Number : 800-25854-02
Top Assembly Revision Number : F0
Version ID : V05
CLEI Code Number : CNMV300CRE
Hardware Board Revision
Number : 0x01
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52
WS-C3750-48TS
12.2(55)SE1
C3750-IPSERVICESK9-M