An electronic device comprising: a body; and an image capturing assembly mounted on the body, the image capturing assembly comprising: an imaging device comprising a camera or a phototransistor; and a device control assembly coupled to the imaging device to control a movement of the imaging device along a central axis of the image capturing assembly, wherein the device control assembly is to allow the imaging device to be positioned at multiple positions along the central axis of the image capturing assembly, and wherein the device control assembly includes: a first guide member; a second guide member rotatably disposed within the first guide member; and an inner body movably disposed within the second guide member, wherein, in response to a rotational motion of the second guide member with respect to the first guide member, the inner body is to move in an axial direction with respect to the second guide member to adjust the position of the imaging device along the central axis of the image capturing assembly and wherein the device control assembly is mounted such that a base of the second guide member is accessible to the user to rotate the second guide member with respect to the first guide member. a body; and an image capturing assembly mounted on the body, the image capturing assembly comprising: an imaging device comprising a camera or a phototransistor; and a device control assembly coupled to the imaging device to control a movement of the imaging device along a central axis of the image capturing assembly, wherein the device control assembly is to allow the imaging device to be positioned at multiple positions along the central axis of the image capturing assembly, and wherein the device control assembly includes: a first guide member; a second guide member rotatably disposed within the first guide member; and an inner body movably disposed within the second guide member, wherein, in response to a rotational motion of the second guide member with respect to the first guide member, the inner body is to move in an axial direction with respect to the second guide member to adjust the position of the imaging device along the central axis of the image capturing assembly and wherein the device control assembly is mounted such that a base of the second guide member is accessible to the user to rotate the second guide member with respect to the first guide member. an imaging device comprising a camera or a phototransistor; and a device control assembly coupled to the imaging device to control a movement of the imaging device along a central axis of the image capturing assembly, wherein the device control assembly is to allow the imaging device to be positioned at multiple positions along the central axis of the image capturing assembly, and wherein the device control assembly includes: a first guide member; a second guide member rotatably disposed within the first guide member; and an inner body movably disposed within the second guide member, wherein, in response to a rotational motion of the second guide member with respect to the first guide member, the inner body is to move in an axial direction with respect to the second guide member to adjust the position of the imaging device along the central axis of the image capturing assembly and wherein the device control assembly is mounted such that a base of the second guide member is accessible to the user to rotate the second guide member with respect to the first guide member. a first guide member; a second guide member rotatably disposed within the first guide member; and an inner body movably disposed within the second guide member, wherein, in response to a rotational motion of the second guide member with respect to the first guide member, the inner body is to move in an axial direction with respect to the second guide member to adjust the position of the imaging device along the central axis of the image capturing assembly and wherein the device control assembly is mounted such that a base of the second guide member is accessible to the user to rotate the second guide member with respect to the first guide member.